The effects of artificial selection of the maize genome

被引:577
|
作者
Wright, SI
Bi, IV
Schroeder, SG
Yamasaki, M
Doebley, JF
McMullen, MD
Gaut, BS [1 ]
机构
[1] Univ Calif Irvine, Dept Ecol & Evolutionary Biol, Irvine, CA 92697 USA
[2] Univ Calif Irvine, Inst Genom & Bioinformat, Irvine, CA 92697 USA
[3] York Univ, Dept Biol, N York, ON M3J 1P3, Canada
[4] Univ Missouri, Dept Agron, Plant Sci Unit, Columbia, MO 65211 USA
[5] Univ Wisconsin, Dept Genet, Madison, WI 53706 USA
[6] ARS, Plant Genet Res Unit, USDA, Columbia, MO 65211 USA
关键词
D O I
10.1126/science.1107891
中图分类号
O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];
学科分类号
07 ; 0710 ; 09 ;
摘要
Domestication promotes rapid phenotypic evolution through artificial selection. We investigated the genetic history by which the wild grass teosinte (Zea mays ssp. parviglumis) was domesticated into modem maize (Z. mays ssp. mays). Analysis of single-nucleotide polymorphisms in 774 genes indicates that 2 to 4% of these genes experienced artificial selection. The remaining genes retain evidence of a population bottleneck associated with domestication. Candidate selected genes with putative function in plant growth are clustered near quantitative trait loci that contribute to phenotypic differences between maize and teosinte. If we assume that our sample of genes is representative, 1200 genes throughout the maize genome have been affected by artificial selection.
引用
收藏
页码:1310 / 1314
页数:5
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