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DOI	10.1073/pnas.2112970118
	A conserved genetic architecture among populations of the maize progenitor, teosinte, was radically altered by domestication
	Chen Q.; Samayoa L.F.; Yang C.J.; Olukolu B.A.; York A.M.; de Jesus Sanchez-Gonzalez J.; Xue W.; Glaubitz J.C.; Bradbury P.J.; Romay M.C.; Sun Q.; Buckler E.S.; Holland J.B.; Doebley J.F.
发表日期	2021
ISSN	0027-8424
卷号	118 期号:43
英文摘要	Very little is known about how domestication was constrained by the quantitative genetic architecture of crop progenitors and how quantitative genetic architecture was altered by domestication. Yang et al. [C. J. Yang et al., Proc. Natl. Acad. Sci. U.S.A. 116, 5643–5652 (2019)] drew multiple conclusions about how genetic architecture influenced and was altered by maize domestication based on one sympatric pair of teosinte and maize populations. To test the generality of their conclusions, we assayed the structure of genetic variances, genetic correlations among traits, strength of selection during domestication, and diversity in genetic architecture within teosinte and maize. Our results confirm that additive genetic variance is decreased, while dominance genetic variance is increased, during maize domestication. The genetic correlations are moderately conserved among traits between teosinte and maize, while the genetic variance–covariance matrices (G-matrices) of teosinte and maize are quite different, primarily due to changes in the submatrix for reproductive traits. The inferred long-term selection intensities during domestication were weak, and the neutral hypothesis was rejected for reproductive and environmental response traits, suggesting that they were targets of selection during domestication. The G-matrix of teosinte imposed considerable constraint on selection during the early domestication process, and constraint increased further along the domestication trajectory. Finally, we assayed variation among populations and observed that genetic architecture is generally conserved among populations within teosinte and maize but is radically different between teosinte and maize. While selection drove changes in essentially all traits between teosinte and maize, selection explains little of the difference in domestication traits among populations within teosinte or maize. © 2021 National Academy of Sciences. All rights reserved.
英文关键词	Domestication; Evolution; Maize; Selection; Teosinte
语种	英语
scopus关键词	article; covariance; domestication; genetic correlation; genetic variability; maize; nonhuman; teosinte
来源期刊	Proceedings of the National Academy of Sciences of the United States of America
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/238770
作者单位	Laboratory of Genetics, University of Wisconsin–Madison, Madison, WI 53706, United States; US Department of Agriculture–Agricultural Research Service Plant Science Research Unit, North Carolina State University, Raleigh, NC 27695, United States; Department of Crop Science, North Carolina State University, Raleigh, NC 27695, United States; Department of Entomology and Plant Pathology, University of Tennessee, Knoxville, TN 37996, United States; Centro Universitario de Ciencias Biologicas y Agropecuarias, Universidad de Guadalajara, Jalisco, Zapopan, CP45110, Mexico; Institute of Biotechnology, Cornell University, Ithaca, NY 14853, United States; US Department of Agriculture–Agricultural Research Service, Cornell University, Ithaca, NY 14853, United States; Genomic Diversity Facility, Cornell University, Ithaca, NY 14853, United States
推荐引用方式 GB/T 7714	Chen Q.,Samayoa L.F.,Yang C.J.,et al. A conserved genetic architecture among populations of the maize progenitor, teosinte, was radically altered by domestication[J],2021,118(43).
APA	Chen Q..,Samayoa L.F..,Yang C.J..,Olukolu B.A..,York A.M..,...&Doebley J.F..(2021).A conserved genetic architecture among populations of the maize progenitor, teosinte, was radically altered by domestication.Proceedings of the National Academy of Sciences of the United States of America,118(43).
MLA	Chen Q.,et al."A conserved genetic architecture among populations of the maize progenitor, teosinte, was radically altered by domestication".Proceedings of the National Academy of Sciences of the United States of America 118.43(2021).