Better explicating the strengths and shortcomings of these models will help refine projections and improve transparency in the years ahead.
Image credit: Witsawat.S.
↵1Z.T., Q.Q., and Q.L. contributed equally to this work.
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Communicated by Longping Yuan, China National Hybrid Rice Research and Development Center, Hunan, China, October 29, 2009 (received for review May 30, 2009)
Abstract
More than half of the world's population uses rice as a source of carbon intake every day. Improving grain quality is thus essential to rice consumers. The three main properties that determine rice eating and cooking quality—amylose content, gel consistency, and gelatinization temperature—correlate with one another, but the underlying mechanism of these properties remains unclear. Through an association analysis approach, we found that genes related to starch synthesis cooperate with each other to form a fine regulating network that controls the eating and cooking quality and defines the correlation among these three properties. Genetic transformation results verified the association findings and also suggested the possibility of developing elite cultivars through modification with selected major and/or minor starch synthesis-related genes.
Footnotes
- 3To whom correspondence may be addressed. E-mail: jyli{at}genetics.ac.cn, gumh{at}yzu.edu.cn, or jyu{at}ksu.edu
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Author contributions: Z.T., Q.Q., M.G., and J.L. designed research; Z.T., Q.Q., Q.L., M.Y., X.L., C.Y., G.L., Z.G., D.Z., and Y.W. performed research; Z.T., S.T., J.Y., and J.L. analyzed data; and Z.T., J.Y., and J.L. wrote the paper.
The authors declare no conflict of interest.
Allelic diversities in rice starch biosynthesis lead to a diverse array of rice eating and cooking qualities
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