Multiple Polyploidization Events across Asteraceae with Two Nested Events in the Early History Revealed by Nuclear Phylogenomics

doi:10.1093/molbev/msw157

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	Multiple Polyploidization Events across Asteraceae with Two Nested Events in the Early History Revealed by Nuclear Phylogenomics
	Huang, Chien-Hsun ; Zhang, Caifei 1; Liu, Mian 1; Hu, Yi 4; Gao, Tiangang 3; Qi, Ji 1; Ma, Hong 1
刊名	MOLECULAR BIOLOGY AND EVOLUTION
	2016
卷号	33 期号:11 页码:2820-2835
关键词	Asteraceae divergence time estimation orthologous nuclear gene phylogeny transcriptome whole-genome duplication
ISSN号	0737-4038
DOI	10.1093/molbev/msw157
文献子类	Article
英文摘要	Biodiversity results from multiple evolutionary mechanisms, including genetic variation and natural selection. Whole-genome duplications (WGDs), or polyploidizations, provide opportunities for large-scale genetic modifications. Many evolutionarily successful lineages, including angiosperms and vertebrates, are ancient polyploids, suggesting that WGDs are a driving force in evolution. However, this hypothesis is challenged by the observed lower speciation and higher extinction rates of recently formed polyploids than diploids. Asteraceae includes about 10% of angiosperm species, is thus undoubtedly one of the most successful lineages and paleopolyploidization was suggested early in this family using a small number of datasets. Here, we used genes from 64 new transcriptome datasets and others to reconstruct a robust Asteraceae phylogeny, covering 73 species from 18 tribes in six subfamilies. We estimated their divergence times and further identified multiple potential ancient WGDs within several tribes and shared by the Heliantheae alliance, core Asteraceae (Asteroideae-Mutisioideae), and also with the sister family Calyceraceae. For two of the WGD events, there were subsequent great increases in biodiversity; the older one proceeded the divergence of at least 10 subfamilies within 10 My, with great variation in morphology and physiology, whereas the other was followed by extremely high species richness in the Heliantheae alliance clade. Our results provide different evidence for several WGDs in Asteraceae and reveal distinct association among WGD events, dramatic changes in environment and species radiations, providing a possible scenario for polyploids to overcome the disadvantages of WGDs and to evolve into lineages with high biodiversity.
学科主题	Biochemistry & Molecular Biology ; Evolutionary Biology ; Genetics & Heredity
电子版国际标准刊号	1537-1719
出版地	OXFORD
WOS关键词	WHOLE-GENOME DUPLICATION ; HELIANTHUS-ANNUUS L ; FLOWERING PLANTS ; ANGIOSPERM DIVERSIFICATION ; MOLECULAR EVOLUTION ; DIVERGENCE TIMES ; PHYLOGENETIC ANALYSES ; ARABIDOPSIS-THALIANA ; CULTIVATED SUNFLOWER ; SEQUENCE ALIGNMENT
WOS研究方向	Science Citation Index Expanded (SCI-EXPANDED)
语种	英语
出版者	OXFORD UNIV PRESS
WOS记录号	WOS:000386064900005
资助机构	National Natural Science Foundation of ChinaNational Natural Science Foundation of China (NSFC) [91131007, 31371330, 31570224] ; China Postdoctoral Science FoundationChina Postdoctoral Science Foundation [2014M551316] ; State Key Laboratory of Genetic Engineering at Fudan University
内容类型	期刊论文
源URL	[http://ir.ibcas.ac.cn/handle/2S10CLM1/24956]
专题	系统与进化植物学国家重点实验室
作者单位	1.Fudan Univ, Sch Life Sci, State Key Lab Genet Engn, Shanghai, Peoples R China 2.Chinese Acad Sci, Inst Bot, State Key Lab Evolutionary & Systemat Bot, Beijing, Peoples R China 3.Penn State Univ, Dept Biol, Huck Inst Life Sci, State Coll, PA USA 4.Fudan Univ, Sch Life Sci,Inst Plant Biol,Inst Biodiversity Sc, Collaborat Innovat Ctr Genet & Dev,Ctr Evolutiona, Minist Educ,Key Lab Biodivers Sci & Ecol Engn, Shanghai, Peoples R China
推荐引用方式 GB/T 7714	Huang, Chien-Hsun,Zhang, Caifei,Liu, Mian,et al. Multiple Polyploidization Events across Asteraceae with Two Nested Events in the Early History Revealed by Nuclear Phylogenomics[J]. MOLECULAR BIOLOGY AND EVOLUTION,2016,33(11):2820-2835.
APA	Huang, Chien-Hsun.,Zhang, Caifei.,Liu, Mian.,Hu, Yi.,Gao, Tiangang.,...&Ma, Hong.(2016).Multiple Polyploidization Events across Asteraceae with Two Nested Events in the Early History Revealed by Nuclear Phylogenomics.MOLECULAR BIOLOGY AND EVOLUTION,33(11),2820-2835.
MLA	Huang, Chien-Hsun,et al."Multiple Polyploidization Events across Asteraceae with Two Nested Events in the Early History Revealed by Nuclear Phylogenomics".MOLECULAR BIOLOGY AND EVOLUTION 33.11(2016):2820-2835.