Genomic analysis reveals rich genetic variation and potential targets of selection during domestication of castor bean from perennial woody tree to annual semi-woody crop

doi:10.1002/pld3.173

	Genomic analysis reveals rich genetic variation and potential targets of selection during domestication of castor bean from perennial woody tree to annual semi-woody crop
	Xu, Wei1 ; Yang, Tianquan 2; Qiu, Lijun 1; Chapman, Mark A.3,4; Li, De-Zhu2 ; Liu, Aizhong1,5
通讯作者	Liu, Aizhong(liuaizhong@mail.kib.ac.cn)
	2019-10-01
发表期刊	PLANT DIRECT
卷号	3 期号:10 页码:16
摘要	Relatively, little is known about the genetic variation of woody trees during domestication. Castor bean (Ricinus communis L. Euphorbiaceae) is a commercially important nonedible annual oilseed crop and differs from its wild progenitors that have a perennial woody habit. Although castor bean is one of the oldest cultivated crops, its domestication origin, genomic variation, and potential targets of selection underlying domestication traits remain unknown. Here, we performed a phylogenetic analysis, which suggests that the wild accessions were distinctively separated from the cultivated accessions. Genome sequencing of three accessions (one each wild, landrace, and cultivar) showed a large number of genetic variants between wild and cultivated castor bean (ZB306 or Hale), and relatively few variants between cultivar ZB306 and Hale. Comparative genome analysis revealed many candidate genes of selection and key pathways potentially involved in the transition from a perennial woody tree to annual crop. Interestingly, among 16 oil-related genes only three showed evidence of selection and the remainder showed low genetic variation at the population level, suggesting strong purifying selection in both the wild and domesticated gene pools. These results extend our understanding of the origin, genomic variation, and domestication, and provide a valuable resource for future gene-trait associations and castor bean breeding.
关键词	castor bean domestication selection genetic variation seed storage lipids woody tree
DOI	10.1002/pld3.173
收录类别	SCI ; SCI
语种	英语
WOS记录号	WOS:000509902200004
引用统计
文献类型	期刊论文
条目标识符	http://ir.kib.ac.cn/handle/151853/70859
专题	资源植物与生物技术所级重点实验室
通讯作者	Liu, Aizhong
作者单位	1.Chinese Acad Sci, Dept Econ Plants & Biotechnol, Yunnan Key Lab Wild Plant Resources, Kunming Inst Bot, Kunming, Yunnan, Peoples R China 2.Chinese Acad Sci, Kunming Inst Bot, Germplasm Bank Wild Species, Kunming, Yunnan, Peoples R China 3.Univ Southampton, Biol Sci, Southampton, Hants, England 4.Univ Southampton, Ctr Underutilised Crops, Southampton, Hants, England 5.Southwest Forestry Univ, Minist Educ, Key Lab Forest Resources Conservat & Utilizat Sou, Kunming, Yunnan, Peoples R China
推荐引用方式 GB/T 7714	Xu, Wei,Yang, Tianquan,Qiu, Lijun,et al. Genomic analysis reveals rich genetic variation and potential targets of selection during domestication of castor bean from perennial woody tree to annual semi-woody crop[J]. PLANT DIRECT,2019,3(10):16.
APA	Xu, Wei,Yang, Tianquan,Qiu, Lijun,Chapman, Mark A.,Li, De-Zhu,&Liu, Aizhong.(2019).Genomic analysis reveals rich genetic variation and potential targets of selection during domestication of castor bean from perennial woody tree to annual semi-woody crop.PLANT DIRECT,3(10),16.
MLA	Xu, Wei,et al."Genomic analysis reveals rich genetic variation and potential targets of selection during domestication of castor bean from perennial woody tree to annual semi-woody crop".PLANT DIRECT 3.10(2019):16.

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