Gene duplication and genetic innovation in cereal genomes

doi:10.1101/gr.237511.118

CORC > 植物研究所 > 中国科学院植物研究所 > 系统与进化植物学国家重点实验室

	Gene duplication and genetic innovation in cereal genomes
	Guo, Hui 8; Jiao, Yuannian 9; Tan, Xu ; Wang, Xiyin 1,2; Huang, Xianzhong 3; Jin, Huizhe ; Paterson, Andrew H.
刊名	GENOME RESEARCH
	2019
卷号	29 期号:2 页码:261-269
ISSN号	1088-9051
DOI	10.1101/gr.237511.118
文献子类	Article
英文摘要	Organisms continuously require genetic variation to adapt to fluctuating environments, yet major evolutionary events are episodic, making the relationship between genome evolution and organismal adaptation of considerable interest. Here, by genome-wide comparison of sorghum, maize, and rice SNPs, we investigated reservoirs of genetic variations with high precision. For sorghum and rice, which have not experienced whole-genome duplication in 96 million years or more, tandem duplicates accumulate relatively more SNPs than paralogous genes retained from genome duplication. However, maize, which experienced lineage-specific genome duplication and has a relatively larger supply of paralogous duplicates, shows SNP enrichment in paralogous genes. The proportion of genes showing signatures of recent positive selection is higher in small-scale (tandem and transposed) than genome-scale duplicates in sorghum, but the opposite is true in maize. A large proportion of recent duplications in rice are species-specific; however, most recent duplications in sorghum are derived from ancestral gene families. A new retrotransposon family was also a source of many recent sorghum duplications, illustrating a role in providing variation for genetic innovations. This study shows that diverse evolutionary mechanisms provide the raw genetic material for adaptation in taxa with divergent histories of genome evolution.
学科主题	Biochemistry & Molecular Biology ; Biotechnology & Applied Microbiology ; Genetics & Heredity
电子版国际标准刊号	1549-5469
出版地	COLD SPRING HARBOR
WOS关键词	WIDE ASSOCIATION ; EVOLUTION ; POLYPLOIDIZATION ; DIVERGENCE ; ALIGNMENT ; REVEALS ; TRAITS ; RICE
WOS研究方向	Biochemistry & Molecular Biology ; Biotechnology & Applied Microbiology ; Genetics & Heredity
语种	英语
出版者	COLD SPRING HARBOR LAB PRESS, PUBLICATIONS DEPT
WOS记录号	WOS:000457462100009
资助机构	Office of Science of the U.S. Department of EnergyUnited States Department of Energy (DOE) [DE-AC02-05CH11231]
内容类型	期刊论文
源URL	[http://ir.ibcas.ac.cn/handle/2S10CLM1/19620]
专题	系统与进化植物学国家重点实验室
作者单位	1.Chinese Acad Sci, State Key Lab Systemat & Evolutionary Bot, Inst Bot, Beijing 100093, Peoples R China 2.Hebei United Univ, Ctr Genom & Computat Biol, Sch Life Sci, Tangshan 063000, Hebei, Peoples R China 3.Hebei United Univ, Sch Sci, Tangshan 063000, Hebei, Peoples R China 4.Shihezi Univ, Plant Genom Lab, Coll Life Sci, Shihezi 832003, Xinjiang, Peoples R China 5.Paterson, Andrew H.] Univ Georgia, Dept Crop & Soil Sci, Athens, GA 30602 USA 6.Paterson, Andrew H.] Univ Georgia, Dept Genet, Athens, GA 30602 USA 7.[Guo, Hui; Jiao, Yuannian; Tan, Xu; Wang, Xiyin; Huang, Xianzhong; Jin, Huizhe; Paterson, Andrew H.] Univ Georgia, Plant Genome Mapping Lab, Athens, GA 30602 USA 8.Guo, Hui; Paterson, Andrew H.] Univ Georgia, Dept Plant Biol, Athens, GA 30602 USA 9.DuPont Pioneer, Data Sci & Informat, Johnston, IA 50131 USA
推荐引用方式 GB/T 7714	Guo, Hui,Jiao, Yuannian,Tan, Xu,et al. Gene duplication and genetic innovation in cereal genomes[J]. GENOME RESEARCH,2019,29(2):261-269.
APA	Guo, Hui.,Jiao, Yuannian.,Tan, Xu.,Wang, Xiyin.,Huang, Xianzhong.,...&Paterson, Andrew H..(2019).Gene duplication and genetic innovation in cereal genomes.GENOME RESEARCH,29(2),261-269.
MLA	Guo, Hui,et al."Gene duplication and genetic innovation in cereal genomes".GENOME RESEARCH 29.2(2019):261-269.