This Article Full Text (PDF) Alert me when this article is cited Alert me if a correction is posted Citation Map Services Email this article to a colleague Similar articles in this journal Similar articles in PubMed Alert me to new issues of the journal Add to My File Cabinet Download to citation manager Request Copyright Permission Citing Articles Citing Articles via HighWire Citing Articles via CrossRef Citing Articles via Google Scholar Google Scholar Articles by Ellstrand, N. C. Articles by Rieseberg, L. H. Search for Related Content PubMed PubMed Citation Articles by Ellstrand, N. C. Articles by Rieseberg, L. H. Social Bookmarking                What's this?

 Previous Article  | Table of Contents |  Next Article 

Vol. 93, Issue 10, 5090-5093, May 14, 1996

Evolution
Distribution of spontaneous plant hybrids

Norman C. Ellstrand^*,, Richard Whitkus^*, and Loren H. Rieseberg

^* Department of Botany and Plant Sciences and Program in Genetics, University of California, Riverside, CA 92521-0124; and  Rancho Santa Ana Botanic Gardens, 1500 North College Avenue, Claremont, CA 91711

Communicated by Wyatt W. Anderson, University of Georgia, Athens, GA, December 22, 1995

Natural hybridization is a relatively common feature of vascular plant species and has been demonstrated to have played an important role in their evolution. Nonetheless, it is not clear whether spontaneous hybridization occurs as a general feature of all plant families and genera or whether certain groups are especially prone to spontaneous hybridization. Therefore, we inspected five modern biosystematic floras to survey the frequency and taxonomic distribution of spontaneous hybrids. We found spontaneous hybridization to be nonrandomly distributed among taxa, concentrated in certain families and certain genera, often at a frequency out of proportion to the size of the family or genus. Most of these groups were primarily outcrossing perennials with reproductive modes that stabilized hybridity such as agamospermy, vegetative spread, or permanent odd polyploidy. These data suggest that certain phylogenetic groups are biologically predisposed for the formation and maintenance of hybrids.

0027-8424/96/935090-4/0
CiteULike    Complore    Connotea    Del.icio.us    Digg    What's this?

This article has been cited by other articles in HighWire Press-hosted journals:

				D. A. Tierney and G. M. Wardle The relative fitness of parental and hybrid Kunzea (Myrtaceae): The interaction of reproductive traits and ecological selection Am. J. Botany, February 1, 2008; 95(2): 146 - 155. [Abstract] [Full Text] [PDF]

				M. L. Moody and D. H. Les Phylogenetic systematics and character evolution in the angiosperm family Haloragaceae Am. J. Botany, December 1, 2007; 94(12): 2005 - 2025. [Abstract] [Full Text] [PDF]

				I. Marques, A. Rossello-Graell, D. Draper, and J. M. Iriondo Pollination patterns limit hybridization between two sympatric species of Narcissus (Amaryllidaceae) Am. J. Botany, August 1, 2007; 94(8): 1352 - 1359. [Abstract] [Full Text] [PDF]

				J. Lihova, J. Kucera, M. Perny, and K. Marhold Hybridization between Two Polyploid Cardamine (Brassicaceae) Species in North-western Spain: Discordance Between Morphological and Genetic Variation Patterns Ann. Bot., June 1, 2007; 99(6): 1083 - 1096. [Abstract] [Full Text] [PDF]

				B. G. Baldwin Adaptive radiation of shrubby tarweeds (Deinandra) in the California Islands parallels diversification of the Hawaiian silversword alliance (Compositae-Madiinae) Am. J. Botany, February 1, 2007; 94(2): 237 - 248. [Abstract] [Full Text] [PDF]

				N. H. Martin, A. C. Bouck, and M. L. Arnold Detecting Adaptive Trait Introgression Between Iris fulva and I. brevicaulis in Highly Selective Field Conditions Genetics, April 1, 2006; 172(4): 2481 - 2489. [Abstract] [Full Text] [PDF]

				J. L Modliszewski, D. T Thomas, C. Fan, D. J Crawford, C. W dePamphilis, and Q.-Y. Xiang Ancestral chloroplast polymorphism and historical secondary contact in a broad hybrid zone of Aesculus (Sapindaceae) Am. J. Botany, March 1, 2006; 93(3): 377 - 388. [Abstract] [Full Text] [PDF]

				R. T. GRANT-DOWNTON and H. G. DICKINSON Epigenetics and its Implications for Plant Biology 2. The 'Epigenetic Epiphany': Epigenetics, Evolution and Beyond Ann. Bot., January 1, 2006; 97(1): 11 - 27. [Abstract] [Full Text] [PDF]

				H. Kirk, K. Vrieling, and P. G. L. Klinkhamer Reproductive fitness of hybrids between Senecio jacobaea and S. aquaticus (Asteraceae) Am. J. Botany, September 1, 2005; 92(9): 1467 - 1473. [Abstract] [Full Text] [PDF]

				Y. Okuyama, N. Fujii, M. Wakabayashi, A. Kawakita, M. Ito, M. Watanabe, N. Murakami, and M. Kato Nonuniform Concerted Evolution and Chloroplast Capture: Heterogeneity of Observed Introgression Patterns in Three Molecular Data Partition Phylogenies of Asian Mitella (Saxifragaceae) Mol. Biol. Evol., February 1, 2005; 22(2): 285 - 296. [Abstract] [Full Text] [PDF]

				C. R. Linder and L. H. Rieseberg Reconstructing patterns of reticulate evolution in plants Am. J. Botany, September 1, 2004; 91(10): 1700 - 1708. [Abstract] [Full Text] [PDF]

				L. H. Rieseberg, O. Raymond, D. M. Rosenthal, Z. Lai, K. Livingstone, T. Nakazato, J. L. Durphy, A. E. Schwarzbach, L. A. Donovan, and C. Lexer Major Ecological Transitions in Wild Sunflowers Facilitated by Hybridization Science, August 29, 2003; 301(5637): 1211 - 1216. [Abstract] [Full Text] [PDF]

				J. A. Schweitzer, G. D. Martinsen, and T. G. Whitham Cottonwood hybrids gain fitness traits of both parents: a mechanism for theirlong-term persistence? Am. J. Botany, June 1, 2002; 89(6): 981 - 990. [Abstract] [Full Text] [PDF]

				N. C. Ellstrand and K. A. Schierenbeck Hybridization as a stimulus for the evolution of invasiveness in plants? PNAS, June 20, 2000; 97(13): 7043 - 7050. [Abstract] [Full Text] [PDF]

				R. Alarcón and D. R. Campbell Absence of conspecific pollen advantage in the dynamics of an Ipomopsis (Polemoniaceae) hybrid zone Am. J. Botany, June 1, 2000; 87(6): 819 - 824. [Abstract] [Full Text]

				R. I. Milne, R. J. Abbott, K. Wolff, and D. F. Chamberlain Hybridization among sympatric species of Rhododendron (Ericaceae) in Turkey: morphological and molecular evidence Am. J. Botany, December 1, 1999; 86(12): 1776 - 1785. [Abstract] [Full Text]

				S.-C. Kim and L. H. Rieseberg Genetic Architecture of Species Differences in Annual Sunflowers: Implications for Adaptive Trait Introgression Genetics, October 1, 1999; 153(2): 965 - 977. [Abstract] [Full Text] [PDF]

				J. H. Williams Jr., W. E. Friedman, and M. L. Arnold Developmental selection within the angiosperm style: Using gamete DNA to visualize interspecific pollen competition PNAS, August 3, 1999; 96(16): 9201 - 9206. [Abstract] [Full Text] [PDF]

				PeterL. Morrell and LorenH. Rieseberg Molecular tests of the proposed diploid hybrid originof Gilia achilleifolia (Polemoniaceae) Am. J. Botany, October 1, 1998; 85(10): 1439 - 1453. [Abstract] [Full Text]

Current Issue | Archives | Online Submission | Info for Authors | Editorial Board | About Subscribe | Advertise | Contact | Site Map Copyright © 1996 by the National Academy of Sciences