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DOI:	10.1371/journal.pone.0169806
论文题名:	A Gene-Oriented Haplotype Comparison Reveals Recently Selected Genomic Regions in Temperate and Tropical Maize Germplasm
作者:	Cheng He; Junjie Fu; Jie Zhang; Yongxiang Li; Jun Zheng; Hongwei Zhang; Xiaohong Yang; Jianhua Wang; Guoying Wang
刊名:	PLOS ONE
ISSN:	1932-6203
出版年:	2017
发表日期:	2017-1-18
卷:	12, 期:1
语种:	英语
英文关键词:	Maize ; Plant genomics ; Gene expression ; Haplotypes ; Inbred strains ; Gene regulation ; RNA sequencing ; Paleogenetics
英文摘要:	The extensive genetic variation present in maize (Zea mays) germplasm makes it possible to detect signatures of positive artificial selection that occurred during temperate and tropical maize improvement. Here we report an analysis of 532,815 polymorphisms from a maize association panel consisting of 368 diverse temperate and tropical inbred lines. We developed a gene-oriented approach adapting exonic polymorphisms to identify recently selected alleles by comparing haplotypes across the maize genome. This analysis revealed evidence of selection for more than 1100 genomic regions during recent improvement, and included regulatory genes and key genes with visible mutant phenotypes. We find that selected candidate target genes in temperate maize are enriched in biosynthetic processes, and further examination of these candidates highlights two cases, sucrose flux and oil storage, in which multiple genes in a common pathway can be cooperatively selected. Finally, based on available parallel gene expression data, we hypothesize that some genes were selected for regulatory variations, resulting in altered gene expression.
URL:	http://journals.plos.org/plosone/article/file?id=10.1371/journal.pone.0169806&type=printable
Citation statistics:
资源类型:	期刊论文
标识符:	http://119.78.100.158/handle/2HF3EXSE/25995
Appears in Collections:	过去全球变化的重建影响、适应和脆弱性科学计划与规划气候变化与战略全球变化的国际研究计划气候减缓与适应气候变化事实与影响

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journal.pone.0169806.pdf（1754KB）	期刊论文	作者接受稿	开放获取	CC BY-NC-SA	View Download

作者单位:

College of Agriculture and Biotechnology, China Agricultural University, Beijing, China;Institute of Crop Sciences, Chinese Academy of Agricultural Sciences, Beijing, China;Institute of Crop Sciences, Chinese Academy of Agricultural Sciences, Beijing, China;College of Agriculture and Biotechnology, China Agricultural University, Beijing, China;Institute of Crop Sciences, Chinese Academy of Agricultural Sciences, Beijing, China;Institute of Crop Sciences, Chinese Academy of Agricultural Sciences, Beijing, China;Institute of Crop Sciences, Chinese Academy of Agricultural Sciences, Beijing, China;College of Agriculture and Biotechnology, China Agricultural University, Beijing, China;College of Agriculture and Biotechnology, China Agricultural University, Beijing, China;Institute of Crop Sciences, Chinese Academy of Agricultural Sciences, Beijing, China

Recommended Citation:

Cheng He,Junjie Fu,Jie Zhang,et al. A Gene-Oriented Haplotype Comparison Reveals Recently Selected Genomic Regions in Temperate and Tropical Maize Germplasm[J]. PLOS ONE,2017-01-01,12(1)

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