Genetic Contribution of Paleopolyploidy to Adaptive Evolution in Angiosperms

doi:10.1016/j.molp.2019.10.012

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

	Genetic Contribution of Paleopolyploidy to Adaptive Evolution in Angiosperms
	Wu, Shengdan 2; Han, Baocai ; Jiao, Yuannian 2
刊名	MOLECULAR PLANT
	2020
卷号	13 期号:1 页码:59-71
关键词	whole-genome duplication paleopolyploidy adaptive evolution phylogenomic Cretaceous-Paleocene boundary gene regulatory network
ISSN号	1674-2052
DOI	10.1016/j.molp.2019.10.012
文献子类	Article
英文摘要	Ancient whole-genome duplications (WGDs or polyploidy) are prevalent in plants, and some WGDs occurred during the timing of severe global environmental changes. It has been suggested that WGDs may have contributed to plant adaptation. However, this still lacks empirical evidence at the genetic level to support the hypothesis. Here, we investigated the survivors of gene duplicates from multiple ancient WGD events on the major branches of angiosperm phylogeny, and aimed to explore genetic evidence supporting the significance of polyploidy. Duplicated genes co-retained from three waves of independent WGDs (similar to 120 million years ago [Ma], similar to 66, and <20 Ma) were investigated in 25 selected species. Gene families functioning in low temperature and darkness were commonly retained gene duplicates after the eight independently occurring WGDs in many lineages around the Cretaceous-Paleocene boundary, when the global cooling and darkness were the two main stresses. Moreover, the commonly retained duplicates could be key factors which may have contributed to the robustness of the critical stress-related pathways. In addition, genome-wide transcription factors (TFs) functioning in stresses tend to retain duplicates after waves of WGDs, and the coselected gene duplicates in many lineages may play critical roles during severe environmental stresses. Collectively, these results shed new light on the significant contribution of paleopolyploidy to plant adaptation during global environmental changes in the evolutionary history of angiosperms.
学科主题	Biochemistry & Molecular Biology ; Plant Sciences
电子版国际标准刊号	1752-9867
出版地	CAMBRIDGE
WOS关键词	CRETACEOUS-TERTIARY EXTINCTION ; GENOME EVOLUTION ; PHYLOGENETIC ANALYSIS ; FREEZING TOLERANCE ; WHOLE-GENOME ; POLYPLOIDY ; ANCIENT ; SEQUENCE ; DUPLICATIONS ; TRANSCRIPTION
WOS研究方向	Biochemistry & Molecular Biology ; Plant Sciences
语种	英语
出版者	CELL PRESS
WOS记录号	WOS:000505787000009
资助机构	Strategic Priority Research Program of the Chinese Academy of SciencesChinese Academy of Sciences [XDB31000000] ; State Key Laboratory of Systematic and Evolutionary Botany, Institute of Botany, the Chinese Academy of Sciences
内容类型	期刊论文
源URL	[http://ir.ibcas.ac.cn/handle/2S10CLM1/21957]
专题	系统与进化植物学国家重点实验室
作者单位	1.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 2.Chinese Acad Sci, Inst Bot, State Key Lab Systemat & Evolutionary Bot, Beijing 100093, Peoples R China
推荐引用方式 GB/T 7714	Wu, Shengdan,Han, Baocai,Jiao, Yuannian. Genetic Contribution of Paleopolyploidy to Adaptive Evolution in Angiosperms[J]. MOLECULAR PLANT,2020,13(1):59-71.
APA	Wu, Shengdan,Han, Baocai,&Jiao, Yuannian.(2020).Genetic Contribution of Paleopolyploidy to Adaptive Evolution in Angiosperms.MOLECULAR PLANT,13(1),59-71.
MLA	Wu, Shengdan,et al."Genetic Contribution of Paleopolyploidy to Adaptive Evolution in Angiosperms".MOLECULAR PLANT 13.1(2020):59-71.