Proceedings of the National Academy of Sciences: 111 (17)

New Research In

April 29, 2014; vol. 111 no. 17

This Week in PNAS

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In This Issue
PNAS April 29, 2014 111 (17) 6117-6118; https://doi.org/10.1073/iti1714111

Letters (Online Only)

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Evolution of social monogamy in primates is not consistently associated with male infanticide
Dieter Lukas and Tim Clutton-Brock

PNAS April 29, 2014 111 (17) E1674; published ahead of print March 26, 2014. https://doi.org/10.1073/pnas.1401012111
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Reply to Lukas and Clutton-Brock: Infanticide still drives primate monogamy
Christopher Opie, Quentin D. Atkinson, Robin I. M. Dunbar, and Susanne Shultz

PNAS April 29, 2014 111 (17) E1675; published ahead of print March 26, 2014. https://doi.org/10.1073/pnas.1403165111
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Rates of upslope shifts for tropical species depend on life history and dispersal mode
Evan M. Rehm

PNAS April 29, 2014 111 (17) E1676; published ahead of print March 21, 2014. https://doi.org/10.1073/pnas.1403417111
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Reply to Rehm: Why rates of upslope shifts in tropical species vary is an open question
Benjamin G. Freeman and Alexandra M. Class Freeman

PNAS April 29, 2014 111 (17) E1677; published ahead of print March 21, 2014. https://doi.org/10.1073/pnas.1403753111

Opinion

Leading scientists discuss current issues.

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The forgotten half of scientific thinking
Front Matter
Marten Scheffer

PNAS April 29, 2014 111 (17) 6119; https://doi.org/10.1073/pnas.1404649111

Commentaries

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Induction of multiciliated cells from induced pluripotent stem cells
Brigitte N. Gomperts

PNAS April 29, 2014 111 (17) 6120-6121; published ahead of print April 16, 2014. https://doi.org/10.1073/pnas.1404414111
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Practical bound for dimensionality in high-dimensional entanglement
Jacquiline Romero and Miles Padgett

PNAS April 29, 2014 111 (17) 6122-6123; published ahead of print April 15, 2014. https://doi.org/10.1073/pnas.1404903111
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Designed IgM from glycoengineering
Andrew Hiatt

PNAS April 29, 2014 111 (17) 6124-6125; published ahead of print April 15, 2014. https://doi.org/10.1073/pnas.1404904111
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Plant salt stress status is transmitted systemically via propagating calcium waves
Aaron B. Stephan and Julian I. Schroeder

PNAS April 29, 2014 111 (17) 6126-6127; published ahead of print April 15, 2014. https://doi.org/10.1073/pnas.1404895111

PNAS Plus Significance Statements

Brief statements written by the authors about the significance of their papers.

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PNAS Plus Significance Statements
PNAS April 29, 2014 111 (17) 6128-6130; https://doi.org/10.1073/pnas.ss11117

Perspective

Open Access
Defining functional DNA elements in the human genome
Manolis Kellis, Barbara Wold, Michael P. Snyder, Bradley E. Bernstein, Anshul Kundaje, Georgi K. Marinov, Lucas D. Ward, Ewan Birney, Gregory E. Crawford, Job Dekker, Ian Dunham, Laura L. Elnitski, Peggy J. Farnham, Elise A. Feingold, Mark Gerstein, Morgan C. Giddings, David M. Gilbert, Thomas R. Gingeras, Eric D. Green, Roderic Guigo, Tim Hubbard, Jim Kent, Jason D. Lieb, Richard M. Myers, Michael J. Pazin, Bing Ren, John A. Stamatoyannopoulos, Zhiping Weng, Kevin P. White, and Ross C. Hardison

PNAS April 29, 2014 111 (17) 6131-6138; published ahead of print April 21, 2014. https://doi.org/10.1073/pnas.1318948111

The Modern View Of Domestication Special Feature (Free Online)

Introduction
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  Current perspectives and the future of domestication studies
  From the Cover
  
  Greger Larson, Dolores R. Piperno, Robin G. Allaby, Michael D. Purugganan, Leif Andersson, Manuel Arroyo-Kalin, Loukas Barton, Cynthia Climer Vigueira, Tim Denham, Keith Dobney, Andrew N. Doust, Paul Gepts, M. Thomas P. Gilbert, Kristen J. Gremillion, Leilani Lucas, Lewis Lukens, Fiona B. Marshall, Kenneth M. Olsen, J. Chris Pires, Peter J. Richerson, Rafael Rubio de Casas, Oris I. Sanjur, Mark G. Thomas, and Dorian Q. Fuller
  
  PNAS April 29, 2014 111 (17) 6139-6146; published ahead of print April 22, 2014. https://doi.org/10.1073/pnas.1323964111
Perspectives
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  Evaluating the roles of directed breeding and gene flow in animal domestication
  Fiona B. Marshall, Keith Dobney, Tim Denham, and José M. Capriles
  
  PNAS April 29, 2014 111 (17) 6153-6158; published ahead of print April 21, 2014. https://doi.org/10.1073/pnas.1312984110
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  Particularism and the retreat from theory in the archaeology of agricultural origins
  Kristen J. Gremillion, Loukas Barton, and Dolores R. Piperno
  
  PNAS April 29, 2014 111 (17) 6171-6177; published ahead of print April 21, 2014. https://doi.org/10.1073/pnas.1308938110
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  Archaeological and genetic insights into the origins of domesticated rice
  Briana L. Gross and Zhijun Zhao
  
  PNAS April 29, 2014 111 (17) 6190-6197; published ahead of print April 21, 2014. https://doi.org/10.1073/pnas.1308942110
Research Articles
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  Convergent evolution and parallelism in plant domestication revealed by an expanding archaeological record
  Dorian Q Fuller, Tim Denham, Manuel Arroyo-Kalin, Leilani Lucas, Chris J. Stevens, Ling Qin, Robin G. Allaby, and Michael D. Purugganan
  
  PNAS April 29, 2014 111 (17) 6147-6152; published ahead of print April 21, 2014. https://doi.org/10.1073/pnas.1308937110
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  Storytelling and story testing in domestication
  Pascale Gerbault, Robin G. Allaby, Nicole Boivin, Anna Rudzinski, Ilaria M. Grimaldi, J. Chris Pires, Cynthia Climer Vigueira, Keith Dobney, Kristen J. Gremillion, Loukas Barton, Manuel Arroyo-Kalin, Michael D. Purugganan, Rafael Rubio de Casas, Ruth Bollongino, Joachim Burger, Dorian Q. Fuller, Daniel G. Bradley, David J. Balding, Peter J. Richerson, M. Thomas P. Gilbert, Greger Larson, and Mark G. Thomas
  
  PNAS April 29, 2014 111 (17) 6159-6164; published ahead of print April 21, 2014. https://doi.org/10.1073/pnas.1400425111
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  Multiple lines of evidence for the origin of domesticated chili pepper, Capsicum annuum, in Mexico
  Kraig H. Kraft, Cecil H. Brown, Gary P. Nabhan, Eike Luedeling, José de Jesús Luna Ruiz, Geo Coppens d’Eeckenbrugge, Robert J. Hijmans, and Paul Gepts
  
  PNAS April 29, 2014 111 (17) 6165-6170; published ahead of print April 21, 2014. https://doi.org/10.1073/pnas.1308933111
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  Beyond the single gene: How epistasis and gene-by-environment effects influence crop domestication
  Andrew N. Doust, Lewis Lukens, Kenneth M. Olsen, Margarita Mauro-Herrera, Ann Meyer, and Kimberly Rogers
  
  PNAS April 29, 2014 111 (17) 6178-6183; published ahead of print April 21, 2014. https://doi.org/10.1073/pnas.1308940110
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  Establishing the validity of domestication genes using DNA from ancient chickens
  Linus Girdland Flink, Richard Allen, Ross Barnett, Helena Malmström, Joris Peters, Jonas Eriksson, Leif Andersson, Keith Dobney, and Greger Larson
  
  PNAS April 29, 2014 111 (17) 6184-6189; published ahead of print April 21, 2014. https://doi.org/10.1073/pnas.1308939110

Physical Sciences

Applied Physical Sciences
- Open Access
  Strong interlayer coupling in van der Waals heterostructures built from single-layer chalcogenides
  Hui Fang, Corsin Battaglia, Carlo Carraro, Slavomir Nemsak, Burak Ozdol, Jeong Seuk Kang, Hans A. Bechtel, Sujay B. Desai, Florian Kronast, Ahmet A. Unal, Giuseppina Conti, Catherine Conlon, Gunnar K. Palsson, Michael C. Martin, Andrew M. Minor, Charles S. Fadley, Eli Yablonovitch, Roya Maboudian, and Ali Javey
  
  PNAS April 29, 2014 111 (17) 6198-6202; published ahead of print April 14, 2014. https://doi.org/10.1073/pnas.1405435111
Chemistry
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  [2Fe-2S] cluster transfer in iron–sulfur protein biogenesis
  Lucia Banci, Diego Brancaccio, Simone Ciofi-Baffoni, Rebecca Del Conte, Ravisekhar Gadepalli, Maciej Mikolajczyk, Sara Neri, Mario Piccioli, and Julia Winkelmann
  
  PNAS April 29, 2014 111 (17) 6203-6208; published ahead of print April 14, 2014. https://doi.org/10.1073/pnas.1400102111
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  Glioblastoma cellular architectures are predicted through the characterization of two-cell interactions
  Nataly Kravchenko-Balasha, Jun Wang, Francoise Remacle, R. D. Levine, and James R. Heath
  
  PNAS April 29, 2014 111 (17) 6521-6526; published ahead of print April 14, 2014. https://doi.org/10.1073/pnas.1404462111
Earth, Atmospheric, and Planetary Sciences
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  Rapidly reversible redox transformation in nanophase manganese oxides at room temperature triggered by changes in hydration
  Nancy Birkner and Alexandra Navrotsky
  
  PNAS April 29, 2014 111 (17) 6209-6214; published ahead of print April 14, 2014. https://doi.org/10.1073/pnas.1320014111
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  Younger Dryas deglaciation of Scotland driven by warming summers
  Gordon R. M. Bromley, Aaron E. Putnam, Kurt M. Rademaker, Thomas V. Lowell, Joerg M. Schaefer, Brenda Hall, Gisela Winckler, Sean D. Birkel, and Harold W. Borns
  
  PNAS April 29, 2014 111 (17) 6215-6219; published ahead of print April 14, 2014. https://doi.org/10.1073/pnas.1321122111
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  Fundamental differences between Arctic and Antarctic ozone depletion
  Susan Solomon, Jessica Haskins, Diane J. Ivy, and Flora Min
  
  PNAS April 29, 2014 111 (17) 6220-6225; published ahead of print April 14, 2014. https://doi.org/10.1073/pnas.1319307111
Engineering
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  Mapping the stochastic response of nanostructures
  Subrahmanyam Pattamatta, Ryan S. Elliott, and Ellad B. Tadmor
  
  PNAS April 29, 2014 111 (17) E1678-E1686; published ahead of print April 14, 2014. https://doi.org/10.1073/pnas.1402029111
- Open Access
  Acoustically trapped colloidal crystals that are reconfigurable in real time
  Mihai Caleap and Bruce W. Drinkwater
  
  PNAS April 29, 2014 111 (17) 6226-6230; published ahead of print April 1, 2014. https://doi.org/10.1073/pnas.1323048111
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  (Finite) statistical size effects on compressive strength
  Jérôme Weiss, Lucas Girard, Florent Gimbert, David Amitrano, and Damien Vandembroucq
  
  PNAS April 29, 2014 111 (17) 6231-6236; published ahead of print April 14, 2014. https://doi.org/10.1073/pnas.1403500111
Environmental Sciences
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  Toward a better understanding and quantification of methane emissions from shale gas development
  Dana R. Caulton, Paul B. Shepson, Renee L. Santoro, Jed P. Sparks, Robert W. Howarth, Anthony R. Ingraffea, Maria O. L. Cambaliza, Colm Sweeney, Anna Karion, Kenneth J. Davis, Brian H. Stirm, Stephen A. Montzka, and Ben R. Miller
  
  PNAS April 29, 2014 111 (17) 6237-6242; published ahead of print April 14, 2014. https://doi.org/10.1073/pnas.1316546111
Physics
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  Generation and confirmation of a (100 × 100)-dimensional entangled quantum system
  From the Cover
  
  Mario Krenn, Marcus Huber, Robert Fickler, Radek Lapkiewicz, Sven Ramelow, and Anton Zeilinger
  
  PNAS April 29, 2014 111 (17) 6243-6247; published ahead of print March 27, 2014. https://doi.org/10.1073/pnas.1402365111

Biological Sciences

Agricultural Sciences
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  Multiple lines of evidence for the origin of domesticated chili pepper, Capsicum annuum, in Mexico
  Kraig H. Kraft, Cecil H. Brown, Gary P. Nabhan, Eike Luedeling, José de Jesús Luna Ruiz, Geo Coppens d’Eeckenbrugge, Robert J. Hijmans, and Paul Gepts
  
  PNAS April 29, 2014 111 (17) 6165-6170; published ahead of print April 21, 2014. https://doi.org/10.1073/pnas.1308933111
- Open Access
  Bayesian inference for an emerging arboreal epidemic in the presence of control
  Matthew Parry, Gavin J. Gibson, Stephen Parnell, Tim R. Gottwald, Michael S. Irey, Timothy C. Gast, and Christopher A. Gilligan
  
  PNAS April 29, 2014 111 (17) 6258-6262; published ahead of print April 7, 2014. https://doi.org/10.1073/pnas.1310997111
Anthropology
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  Establishing the validity of domestication genes using DNA from ancient chickens
  Linus Girdland Flink, Richard Allen, Ross Barnett, Helena Malmström, Joris Peters, Jonas Eriksson, Leif Andersson, Keith Dobney, and Greger Larson
  
  PNAS April 29, 2014 111 (17) 6184-6189; published ahead of print April 21, 2014. https://doi.org/10.1073/pnas.1308939110
Applied Biological Sciences
- Open Access
  Expression and glycoengineering of functionally active heteromultimeric IgM in plants
  From the Cover
  
  Andreas Loos, Clemens Gruber, Friedrich Altmann, Ulrich Mehofer, Frank Hensel, Melanie Grandits, Chris Oostenbrink, Gerhard Stadlmayr, Paul G. Furtmüller, and Herta Steinkellner
  
  PNAS April 29, 2014 111 (17) 6263-6268; published ahead of print March 31, 2014. https://doi.org/10.1073/pnas.1320544111
Biochemistry
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  Architecture and assembly of the archaeal Cdc48⋅20S proteasome
  Dominik Barthelme, James Z. Chen, Jonathan Grabenstatter, Tania A. Baker, and Robert T. Sauer
  
  PNAS April 29, 2014 111 (17) E1687-E1694; published ahead of print April 7, 2014. https://doi.org/10.1073/pnas.1404823111
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  Conserved electron donor complex Dre2–Tah18 is required for ribonucleotide reductase metallocofactor assembly and DNA synthesis
  Yan Zhang, Haoran Li, Caiguo Zhang, Xiuxiang An, Lili Liu, JoAnne Stubbe, and Mingxia Huang
  
  PNAS April 29, 2014 111 (17) E1695-E1704; published ahead of print April 14, 2014. https://doi.org/10.1073/pnas.1405204111
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  Selective inhibition of the function of tyrosine-phosphorylated STAT3 with a phosphorylation site-specific intrabody
  Mi Young Koo, Jiyoung Park, Jung Mi Lim, Sei Yoon Joo, Seung-Pil Shin, Hyun Bo Shim, Junho Chung, Dongmin Kang, Hyun Ae Woo, and Sue Goo Rhee
  
  PNAS April 29, 2014 111 (17) 6269-6274; published ahead of print April 14, 2014. https://doi.org/10.1073/pnas.1316815111
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  Molecular recognition and modification of the 30S ribosome by the aminoglycoside-resistance methyltransferase NpmA
  Jack A. Dunkle, Kellie Vinal, Pooja M. Desai, Natalia Zelinskaya, Miloje Savic, Dayne M. West, Graeme L. Conn, and Christine M. Dunham
  
  PNAS April 29, 2014 111 (17) 6275-6280; published ahead of print April 9, 2014. https://doi.org/10.1073/pnas.1402789111
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  Structure of the Toll-Spätzle complex, a molecular hub in Drosophila development and innate immunity
  Christoph Parthier, Marco Stelter, Christian Ursel, Uwe Fandrich, Hauke Lilie, Constanze Breithaupt, and Milton T. Stubbs
  
  PNAS April 29, 2014 111 (17) 6281-6286; published ahead of print April 14, 2014. https://doi.org/10.1073/pnas.1320678111
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  Discovery of LPMO activity on hemicelluloses shows the importance of oxidative processes in plant cell wall degradation
  Jane W. Agger, Trine Isaksen, Anikó Várnai, Silvia Vidal-Melgosa, William G. T. Willats, Roland Ludwig, Svein J. Horn, Vincent G. H. Eijsink, and Bjørge Westereng
  
  PNAS April 29, 2014 111 (17) 6287-6292; published ahead of print April 14, 2014. https://doi.org/10.1073/pnas.1323629111
Biophysics and Computational Biology
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  Measurement of histidine pK_a values and tautomer populations in invisible protein states
  Alexandar L. Hansen and Lewis E. Kay
  
  PNAS April 29, 2014 111 (17) E1705-E1712; published ahead of print April 14, 2014. https://doi.org/10.1073/pnas.1400577111
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  Initial steps of inactivation at the K⁺ channel selectivity filter
  Andrew S. Thomson, Florian T. Heer, Frank J. Smith, Eunan Hendron, Simon Bernèche, and Brad S. Rothberg
  
  PNAS April 29, 2014 111 (17) E1713-E1722; published ahead of print April 14, 2014. https://doi.org/10.1073/pnas.1317573111
- Open Access
  Training-free atomistic prediction of nucleosome occupancy
  Peter Minary and Michael Levitt
  
  PNAS April 29, 2014 111 (17) 6293-6298; published ahead of print April 14, 2014. https://doi.org/10.1073/pnas.1404475111
- Open Access
  Mobile hydrogen carbonate acts as proton acceptor in photosynthetic water oxidation
  Sergey Koroidov, Dmitriy Shevela, Tatiana Shutova, Göran Samuelsson, and Johannes Messinger
  
  PNAS April 29, 2014 111 (17) 6299-6304; published ahead of print April 7, 2014. https://doi.org/10.1073/pnas.1323277111
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  X-ray structure of human aquaporin 2 and its implications for nephrogenic diabetes insipidus and trafficking
  Anna Frick, Urszula Kosinska Eriksson, Fabrizio de Mattia, Fredrik Öberg, Kristina Hedfalk, Richard Neutze, Willem J. de Grip, Peter M. T. Deen, and Susanna Törnroth-Horsefield
  
  PNAS April 29, 2014 111 (17) 6305-6310; published ahead of print April 14, 2014. https://doi.org/10.1073/pnas.1321406111
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  Tau mutants bind tubulin heterodimers with enhanced affinity
  Shana Elbaum-Garfinkle, Garrett Cobb, Jocelyn T. Compton, Xiao-Han Li, and Elizabeth Rhoades
  
  PNAS April 29, 2014 111 (17) 6311-6316; published ahead of print April 14, 2014. https://doi.org/10.1073/pnas.1315983111
Cell Biology
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  Generation of multiciliated cells in functional airway epithelia from human induced pluripotent stem cells
  Amy L. Firth, Carl T. Dargitz, Susan J. Qualls, Tushar Menon, Rebecca Wright, Oded Singer, Fred H. Gage, Ajai Khanna, and Inder M. Verma
  
  PNAS April 29, 2014 111 (17) E1723-E1730; published ahead of print March 24, 2014. https://doi.org/10.1073/pnas.1403470111
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  Cellular heterogeneity profiling by hyaluronan probes reveals an invasive but slow-growing breast tumor subset
  Mandana Veiseh, Daniel H. Kwon, Alexander D. Borowsky, Cornelia Tolg, Hon S. Leong, John D. Lewis, Eva A. Turley, and Mina J. Bissell
  
  PNAS April 29, 2014 111 (17) E1731-E1739; published ahead of print April 14, 2014. https://doi.org/10.1073/pnas.1402383111
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  Sea star tenacity mediated by a protein that fragments, then aggregates
  Elise Hennebert, Ruddy Wattiez, Mélanie Demeuldre, Peter Ladurner, Dong Soo Hwang, J. Herbert Waite, and Patrick Flammang
  
  PNAS April 29, 2014 111 (17) 6317-6322; published ahead of print April 14, 2014. https://doi.org/10.1073/pnas.1400089111
- Open Access
  Tumor microenvironment-based feed-forward regulation of NOS2 in breast cancer progression
  Julie L. Heinecke, Lisa A. Ridnour, Robert Y. S. Cheng, Christopher H. Switzer, Michael M. Lizardo, Chand Khanna, Sharon A. Glynn, S. Perwez Hussain, Howard A. Young, Stefan Ambs, and David A. Wink
  
  PNAS April 29, 2014 111 (17) 6323-6328; published ahead of print April 14, 2014. https://doi.org/10.1073/pnas.1401799111
Developmental Biology
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  Brf1 posttranscriptionally regulates pluripotency and differentiation responses downstream of Erk MAP kinase
  Frederick E. Tan and Michael B. Elowitz
  
  PNAS April 29, 2014 111 (17) E1740-E1748; published ahead of print April 14, 2014. https://doi.org/10.1073/pnas.1320873111
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  Sp8 regulates inner ear development
  Hyeyoung A. Chung, Sofia Medina-Ruiz, and Richard M. Harland
  
  PNAS April 29, 2014 111 (17) 6329-6334; published ahead of print April 10, 2014. https://doi.org/10.1073/pnas.1319301111
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  MicroRNAs are critical regulators of tuberous sclerosis complex and mTORC1 activity in the size control of the Xenopus kidney
  Daniel Romaker, Vikash Kumar, Débora M. Cerqueira, Ryan M. Cox, and Oliver Wessely
  
  PNAS April 29, 2014 111 (17) 6335-6340; published ahead of print April 14, 2014. https://doi.org/10.1073/pnas.1320577111
Ecology
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  Endemism and functional convergence across the North American soil mycobiome
  Jennifer M. Talbot, Thomas D. Bruns, John W. Taylor, Dylan P. Smith, Sara Branco, Sydney I. Glassman, Sonya Erlandson, Rytas Vilgalys, Hui-Ling Liao, Matthew E. Smith, and Kabir G. Peay
  
  PNAS April 29, 2014 111 (17) 6341-6346; published ahead of print April 14, 2014. https://doi.org/10.1073/pnas.1402584111
Environmental Sciences
- Open Access
  Abrupt increases in Amazonian tree mortality due to drought–fire interactions
  Paulo Monteiro Brando, Jennifer K. Balch, Daniel C. Nepstad, Douglas C. Morton, Francis E. Putz, Michael T. Coe, Divino Silvério, Marcia N. Macedo, Eric A. Davidson, Caroline C. Nóbrega, Ane Alencar, and Britaldo S. Soares-Filho
  
  PNAS April 29, 2014 111 (17) 6347-6352; published ahead of print April 14, 2014. https://doi.org/10.1073/pnas.1305499111
Evolution
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  Storytelling and story testing in domestication
  Pascale Gerbault, Robin G. Allaby, Nicole Boivin, Anna Rudzinski, Ilaria M. Grimaldi, J. Chris Pires, Cynthia Climer Vigueira, Keith Dobney, Kristen J. Gremillion, Loukas Barton, Manuel Arroyo-Kalin, Michael D. Purugganan, Rafael Rubio de Casas, Ruth Bollongino, Joachim Burger, Dorian Q. Fuller, Daniel G. Bradley, David J. Balding, Peter J. Richerson, M. Thomas P. Gilbert, Greger Larson, and Mark G. Thomas
  
  PNAS April 29, 2014 111 (17) 6159-6164; published ahead of print April 21, 2014. https://doi.org/10.1073/pnas.1400425111
- You have access
  Beyond the single gene: How epistasis and gene-by-environment effects influence crop domestication
  Andrew N. Doust, Lewis Lukens, Kenneth M. Olsen, Margarita Mauro-Herrera, Ann Meyer, and Kimberly Rogers
  
  PNAS April 29, 2014 111 (17) 6178-6183; published ahead of print April 21, 2014. https://doi.org/10.1073/pnas.1308940110
- Open Access
  Enhanced evolution by stochastically variable modification of epigenetic marks in the early embryo
  Sergio Branciamore, Andrei S. Rodin, Arthur D. Riggs, and Sergei N. Rodin
  
  PNAS April 29, 2014 111 (17) 6353-6358; published ahead of print April 14, 2014. https://doi.org/10.1073/pnas.1402585111
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  Partner choice and fidelity stabilize coevolution in a Cretaceous-age defensive symbiosis
  Martin Kaltenpoth, Kerstin Roeser-Mueller, Sabrina Koehler, Ashley Peterson, Taras Y. Nechitaylo, J. William Stubblefield, Gudrun Herzner, Jon Seger, and Erhard Strohm
  
  PNAS April 29, 2014 111 (17) 6359-6364; published ahead of print April 14, 2014. https://doi.org/10.1073/pnas.1400457111
Genetics
- Open Access
  Methylation protects microRNAs from an AGO1-associated activity that uridylates 5′ RNA fragments generated by AGO1 cleavage
  Guodong Ren, Meng Xie, Shuxin Zhang, Carissa Vinovskis, Xuemei Chen, and Bin Yu
  
  PNAS April 29, 2014 111 (17) 6365-6370; published ahead of print April 14, 2014. https://doi.org/10.1073/pnas.1405083111
Immunology
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  Optogenetic control of chemokine receptor signal and T-cell migration
  Yuexin Xu, Young-Min Hyun, Kihong Lim, Hyunwook Lee, Ryan J. Cummings, Scott A. Gerber, Seyeon Bae, Thomas Yoonsang Cho, Edith M. Lord, and Minsoo Kim
  
  PNAS April 29, 2014 111 (17) 6371-6376; published ahead of print April 14, 2014. https://doi.org/10.1073/pnas.1319296111
- Open Access
  Stretched cell cycle model for proliferating lymphocytes
  Mark R. Dowling, Andrey Kan, Susanne Heinzel, Jie H. S. Zhou, Julia M. Marchingo, Cameron J. Wellard, John F. Markham, and Philip D. Hodgkin
  
  PNAS April 29, 2014 111 (17) 6377-6382; published ahead of print April 14, 2014. https://doi.org/10.1073/pnas.1322420111
Medical Sciences
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  Humoral response to a viral glycan correlates with survival on PROSTVAC-VF
  Christopher T. Campbell, James L. Gulley, Oyindasola Oyelaran, James W. Hodge, Jeffrey Schlom, and Jeffrey C. Gildersleeve
  
  PNAS April 29, 2014 111 (17) E1749-E1758; published ahead of print April 14, 2014. https://doi.org/10.1073/pnas.1314722111
- Open Access
  PDGFRβ reverses EphB4 signaling in alveolar rhabdomyosarcoma
  M. Imran Aslam, Jinu Abraham, Atiya Mansoor, Brian J. Druker, Jeffrey W. Tyner, and Charles Keller
  
  PNAS April 29, 2014 111 (17) 6383-6388; published ahead of print April 14, 2014. https://doi.org/10.1073/pnas.1403608111
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  Essential role for TrpC5-containing extracellular vesicles in breast cancer with chemotherapeutic resistance
  Xin Ma, Zhen Chen, Dong Hua, Dongxu He, Linjun Wang, Peng Zhang, Junqi Wang, Yanfei Cai, Caiji Gao, Xiaodong Zhang, Fangfang Zhang, Teng Wang, Tingting Hong, Linfang Jin, Xiaowei Qi, Shuxian Chen, Xiaoting Gu, Dangtong Yang, Qiongxi Pan, Yifei Zhu, Yun Chen, Daozhen Chen, Liwen Jiang, Xiaofeng Han, Yanyun Zhang, Jian Jin, and Xiaoqiang Yao
  
  PNAS April 29, 2014 111 (17) 6389-6394; published ahead of print April 14, 2014. https://doi.org/10.1073/pnas.1400272111
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  PI3K isoform dependence of PTEN-deficient tumors can be altered by the genetic context
  Fabienne Schmit, Tamara Utermark, Sen Zhang, Qi Wang, Thanh Von, Thomas M. Roberts, and Jean J. Zhao
  
  PNAS April 29, 2014 111 (17) 6395-6400; published ahead of print April 15, 2014. https://doi.org/10.1073/pnas.1323004111
Microbiology
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  Diverse mutational pathways converge on saturable chloroquine transport via the malaria parasite’s chloroquine resistance transporter
  Robert L. Summers, Anurag Dave, Tegan J. Dolstra, Sebastiano Bellanca, Rosa V. Marchetti, Megan N. Nash, Sashika N. Richards, Valerie Goh, Robyn L. Schenk, Wilfred D. Stein, Kiaran Kirk, Cecilia P. Sanchez, Michael Lanzer, and Rowena E. Martin
  
  PNAS April 29, 2014 111 (17) E1759-E1767; published ahead of print April 11, 2014. https://doi.org/10.1073/pnas.1322965111
- Open Access
  Evolutionary pathway to increased virulence and epidemic group A Streptococcus disease derived from 3,615 genome sequences
  Waleed Nasser, Stephen B. Beres, Randall J. Olsen, Melissa A. Dean, Kelsey A. Rice, S. Wesley Long, Karl G. Kristinsson, Magnus Gottfredsson, Jaana Vuopio, Kati Raisanen, Dominique A. Caugant, Martin Steinbakk, Donald E. Low, Allison McGeer, Jessica Darenberg, Birgitta Henriques-Normark, Chris A. Van Beneden, Steen Hoffmann, and James M. Musser
  
  PNAS April 29, 2014 111 (17) E1768-E1776; published ahead of print April 14, 2014. https://doi.org/10.1073/pnas.1403138111
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  Prevention of influenza by targeting host receptors using engineered proteins
  Helen Connaris, Elena A. Govorkova, Yvonne Ligertwood, Bernadette M. Dutia, Lei Yang, Sandra Tauber, Margaret A. Taylor, Nadiawati Alias, Robert Hagan, Anthony A. Nash, Robert G. Webster, and Garry L. Taylor
  
  PNAS April 29, 2014 111 (17) 6401-6406; published ahead of print April 14, 2014. https://doi.org/10.1073/pnas.1404205111
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  Lipopolysaccharide O antigen size distribution is determined by a chain extension complex of variable stoichiometry in Escherichia coli O9a
  Jerry D. King, Scott Berry, Bradley R. Clarke, Richard J. Morris, and Chris Whitfield
  
  PNAS April 29, 2014 111 (17) 6407-6412; published ahead of print April 14, 2014. https://doi.org/10.1073/pnas.1400814111
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  Hepatitis C virus triggers mitochondrial fission and attenuates apoptosis to promote viral persistence
  Seong-Jun Kim, Gulam H. Syed, Mohsin Khan, Wei-Wei Chiu, Muhammad A. Sohail, Robert G. Gish, and Aleem Siddiqui
  
  PNAS April 29, 2014 111 (17) 6413-6418; published ahead of print April 14, 2014. https://doi.org/10.1073/pnas.1321114111
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  Incomplete Wood–Ljungdahl pathway facilitates one-carbon metabolism in organohalide-respiring Dehalococcoides mccartyi
  Wei-Qin Zhuang, Shan Yi, Markus Bill, Vanessa L. Brisson, Xueyang Feng, Yujie Men, Mark E. Conrad, Yinjie J. Tang, and Lisa Alvarez-Cohen
  
  PNAS April 29, 2014 111 (17) 6419-6424; published ahead of print April 14, 2014. https://doi.org/10.1073/pnas.1321542111
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  Tetherin antagonism by Vpu protects HIV-infected cells from antibody-dependent cell-mediated cytotoxicity
  Juan F. Arias, Lisa N. Heyer, Benjamin von Bredow, Kim L. Weisgrau, Brian Moldt, Dennis R. Burton, Eva G. Rakasz, and David T. Evans
  
  PNAS April 29, 2014 111 (17) 6425-6430; published ahead of print April 14, 2014. https://doi.org/10.1073/pnas.1321507111
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  LRP1 is a receptor for Clostridium perfringens TpeL toxin indicating a two-receptor model of clostridial glycosylating toxins
  Björn Schorch, Shuo Song, Ferdy R. van Diemen, Hans H. Bock, Petra May, Joachim Herz, Thijn R. Brummelkamp, Panagiotis Papatheodorou, and Klaus Aktories
  
  PNAS April 29, 2014 111 (17) 6431-6436; published ahead of print April 15, 2014. https://doi.org/10.1073/pnas.1323790111
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  Avirulent strains of Toxoplasma gondii infect macrophages by active invasion from the phagosome
  Yanlin Zhao, Andrew H. Marple, David J. P. Ferguson, David J. Bzik, and George S. Yap
  
  PNAS April 29, 2014 111 (17) 6437-6442; published ahead of print April 14, 2014. https://doi.org/10.1073/pnas.1316841111
Neuroscience
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  Transformation of the cerebellum into more ventral brainstem fates causes cerebellar agenesis in the absence of Ptf1a function
  Kathleen J. Millen, Ekaterina Y. Steshina, Igor Y. Iskusnykh, and Victor V. Chizhikov
  
  PNAS April 29, 2014 111 (17) E1777-E1786; published ahead of print April 14, 2014. https://doi.org/10.1073/pnas.1315024111
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  Homeostasis of functional maps in active dendrites emerges in the absence of individual channelostasis
  Rahul Kumar Rathour and Rishikesh Narayanan
  
  PNAS April 29, 2014 111 (17) E1787-E1796; published ahead of print April 7, 2014. https://doi.org/10.1073/pnas.1316599111
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  Thalamocortical rhythms during a vibrotactile detection task
  Saskia Haegens, Yuriria Vázquez, Antonio Zainos, Manuel Alvarez, Ole Jensen, and Ranulfo Romo
  
  PNAS April 29, 2014 111 (17) E1797-E1805; published ahead of print April 14, 2014. https://doi.org/10.1073/pnas.1405516111
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  Far transfer to language and math of a short software-based gaming intervention
  Andrea Paula Goldin, María Julia Hermida, Diego E. Shalom, Martín Elias Costa, Matías Lopez-Rosenfeld, María Soledad Segretin, Diego Fernández-Slezak, Sebastián J. Lipina, and Mariano Sigman
  
  PNAS April 29, 2014 111 (17) 6443-6448; published ahead of print April 7, 2014. https://doi.org/10.1073/pnas.1320217111
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  Defining modulatory inputs into CNS neuronal subclasses by functional pharmacological profiling
  Shrinivasan Raghuraman, Alfredo J. Garcia, Tatiana M. Anderson, Vernon D. Twede, Kigen J. Curtice, Kevin Chase, Jan-Marino Ramirez, Baldomero M. Olivera, and Russell W. Teichert
  
  PNAS April 29, 2014 111 (17) 6449-6454; published ahead of print April 14, 2014. https://doi.org/10.1073/pnas.1404421111
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  Aversive behavior induced by optogenetic inactivation of ventral tegmental area dopamine neurons is mediated by dopamine D2 receptors in the nucleus accumbens
  Teruko Danjo, Kenji Yoshimi, Kazuo Funabiki, Satoshi Yawata, and Shigetada Nakanishi
  
  PNAS April 29, 2014 111 (17) 6455-6460; published ahead of print April 15, 2014. https://doi.org/10.1073/pnas.1404323111
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  PAKs inhibitors ameliorate schizophrenia-associated dendritic spine deterioration in vitro and in vivo during late adolescence
  Akiko Hayashi-Takagi, Yoichi Araki, Mayumi Nakamura, Benedikt Vollrath, Sergio G. Duron, Zhen Yan, Haruo Kasai, Richard L. Huganir, David A. Campbell, and Akira Sawa
  
  PNAS April 29, 2014 111 (17) 6461-6466; published ahead of print April 3, 2014. https://doi.org/10.1073/pnas.1321109111
- Open Access
  Simultaneous selection by object-based attention in visual and frontal cortex
  Arezoo Pooresmaeili, Jasper Poort, and Pieter R. Roelfsema
  
  PNAS April 29, 2014 111 (17) 6467-6472; published ahead of print April 7, 2014. https://doi.org/10.1073/pnas.1316181111
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  Regional cerebral metabolic patterns demonstrate the role of anterior forebrain mesocircuit dysfunction in the severely injured brain
  Esteban A. Fridman, Bradley J. Beattie, Allegra Broft, Steven Laureys, and Nicholas D. Schiff
  
  PNAS April 29, 2014 111 (17) 6473-6478; published ahead of print April 14, 2014. https://doi.org/10.1073/pnas.1320969111
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  Gq/5-HT_2c receptor signals activate a local GABAergic inhibitory feedback circuit to modulate serotonergic firing and anxiety in mice
  Katharina Spoida, Olivia A. Masseck, Evan S. Deneris, and Stefan Herlitze
  
  PNAS April 29, 2014 111 (17) 6479-6484; published ahead of print April 14, 2014. https://doi.org/10.1073/pnas.1321576111
Physiology
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  Secretion of von Willebrand factor by endothelial cells links sodium to hypercoagulability and thrombosis
  Natalia I. Dmitrieva and Maurice B. Burg
  
  PNAS April 29, 2014 111 (17) 6485-6490; published ahead of print April 14, 2014. https://doi.org/10.1073/pnas.1404809111
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  Stoichiometry and specific assembly of Best ion channels
  Shashank Bharill, Zhu Fu, Raz Palty, and Ehud Y. Isacoff
  
  PNAS April 29, 2014 111 (17) 6491-6496; published ahead of print April 18, 2014. https://doi.org/10.1073/pnas.1400248111
Plant Biology
- Open Access
  Control of vacuolar dynamics and regulation of stomatal aperture by tonoplast potassium uptake
  Zaida Andrés, Javier Pérez-Hormaeche, Eduardo O. Leidi, Kathrin Schlücking, Leonie Steinhorst, Deirdre H. McLachlan, Karin Schumacher, Alistair M. Hetherington, Jörg Kudla, Beatriz Cubero, and José M. Pardo
  
  PNAS April 29, 2014 111 (17) E1806-E1814; published ahead of print April 14, 2014. https://doi.org/10.1073/pnas.1320421111
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  Convergent evolution and parallelism in plant domestication revealed by an expanding archaeological record
  Dorian Q Fuller, Tim Denham, Manuel Arroyo-Kalin, Leilani Lucas, Chris J. Stevens, Ling Qin, Robin G. Allaby, and Michael D. Purugganan
  
  PNAS April 29, 2014 111 (17) 6147-6152; published ahead of print April 21, 2014. https://doi.org/10.1073/pnas.1308937110
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  Salt stress-induced Ca²⁺ waves are associated with rapid, long-distance root-to-shoot signaling in plants
  From the Cover
  
  Won-Gyu Choi, Masatsugu Toyota, Su-Hwa Kim, Richard Hilleary, and Simon Gilroy
  
  PNAS April 29, 2014 111 (17) 6497-6502; published ahead of print March 24, 2014. https://doi.org/10.1073/pnas.1319955111
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  Natural variation underlies alterations in Nramp aluminum transporter (NRAT1) expression and function that play a key role in rice aluminum tolerance
  Jian-Yong Li, Jiping Liu, Dekun Dong, Xiaomin Jia, Susan R. McCouch, and Leon V. Kochian
  
  PNAS April 29, 2014 111 (17) 6503-6508; published ahead of print April 11, 2014. https://doi.org/10.1073/pnas.1318975111
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  Structural basis for regulation of rhizobial nodulation and symbiosis gene expression by the regulatory protein NolR
  Soon Goo Lee, Hari B. Krishnan, and Joseph M. Jez
  
  PNAS April 29, 2014 111 (17) 6509-6514; published ahead of print April 14, 2014. https://doi.org/10.1073/pnas.1402243111
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  Light intensity modulates the regulatory network of the shade avoidance response in Arabidopsis
  Micha Hersch, Séverine Lorrain, Mieke de Wit, Martine Trevisan, Karin Ljung, Sven Bergmann, and Christian Fankhauser
  
  PNAS April 29, 2014 111 (17) 6515-6520; published ahead of print April 14, 2014. https://doi.org/10.1073/pnas.1320355111
Sustainability Science
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  Implementing the optimal provision of ecosystem services
  Stephen Polasky, David J. Lewis, Andrew J. Plantinga, and Erik Nelson
  
  PNAS April 29, 2014 111 (17) 6248-6253; published ahead of print April 10, 2014. https://doi.org/10.1073/pnas.1404484111
Systems Biology
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  Glioblastoma cellular architectures are predicted through the characterization of two-cell interactions
  Nataly Kravchenko-Balasha, Jun Wang, Francoise Remacle, R. D. Levine, and James R. Heath
  
  PNAS April 29, 2014 111 (17) 6521-6526; published ahead of print April 14, 2014. https://doi.org/10.1073/pnas.1404462111

Corrections

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Correction for Woodhouse et al., Origin, inheritance, and gene regulatory consequences of genome dominance in polyploids
PNAS April 29, 2014 111 (17) 6527; published ahead of print April 9, 2014. https://doi.org/10.1073/pnas.1405833111
You have access
Correction for Sah et al., Ion channel-kinase TRPM7 is required for maintaining cardiac automaticity
PNAS April 29, 2014 111 (17) 6528; published ahead of print April 9, 2014. https://doi.org/10.1073/pnas.1405727111
You have access
Correction for Cardoso et al., Natural variation of rice strigolactone biosynthesis is associated with the deletion of two MAX1 orthologs
PNAS April 29, 2014 111 (17) 6528; published ahead of print April 9, 2014. https://doi.org/10.1073/pnas.1405730111

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