干旱区生态环境知识资源中心(Arid): Geographical pattern of genetic diversity in Capsella bursa-pastoris (Brassicaceae)-A global perspective

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DOI	10.1002/ece3.7010
	Geographical pattern of genetic diversity in Capsella bursa-pastoris (Brassicaceae)-A global perspective
	Wesse, Christina; Welk, Erik; Hurka, Herbert; Neuffer, Barbara
通讯作者	Neuffer, B
来源期刊	ECOLOGY AND EVOLUTION
ISSN	2045-7758
英文摘要	We analyzed the global genetic variation pattern of Capsella bursa-pastoris (Brassicaceae) as expressed in allozymic (within-locus) diversity and isozymic (between-locus) diversity. Results are based on a global sampling of more than 20,000 C. bursa-pastoris individuals randomly taken from 1,469 natural provenances in the native and introduced range, covering a broad spectrum of the species' geographic distribution. We evaluated data for population genetic parameters and F-statistics, and Mantel tests and AMOVA were performed. Geographical distribution patterns of alleles and multilocus genotypes are shown in maps and tables. Genetic diversity of introduced populations is only moderately reduced in comparison with native populations. Global population structure was analyzed with structure, and the obtained cluster affiliation was tested independently with classification approaches and macroclimatic data using species distribution modeling. Analyses revealed two main clusters: one distributed predominantly in warm arid to semiarid climate regions and the other predominantly in more temperate humid to semihumid climate regions. We observed admixture between the two lineages predominantly in regions with intermediate humidity in both the native and non-native ranges. The genetically derived clusters are strongly supported in macroclimatic data space. The worldwide distribution patterns of genetic variation in the range of C. bursa-pastoris can be explained by intensive intra- and intercontinental migration, but environmental filtering due to climate preadaption seems also involved. Multiple independent introductions of genotypes from different source regions are obvious. "Endemic" genotypes might be the outcome of admixture or of de novo mutation. We conclude that today's successfully established Capsella genotypes were preadapted and found matching niche conditions in the colonized range parts.
英文关键词	adaptation Capsella bursa‐ pastoris colonization macroclimate multilocus genotypes species distribution model
类型	Article ; Early Access
语种	英语
开放获取类型	DOAJ Gold
收录类别	SCI-E
WOS记录号	WOS:000589027600001
WOS关键词	SPECIES DISTRIBUTIONS ; BRASSICACEAE ; EVOLUTION ; ISOZYMES ; DIFFERENTIATION ; COLONIZATION ; POPULATIONS ; COMPLEXITY ; INFERENCE ; SOFTWARE
WOS类目	Ecology ; Evolutionary Biology
WOS研究方向	Environmental Sciences & Ecology ; Evolutionary Biology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/328485
作者单位	[Wesse, Christina; Hurka, Herbert; Neuffer, Barbara] Univ Osnabrueck, Dept Bot, Barbarastr 11, D-49076 Osnabruck, Germany; [Welk, Erik] Martin Luther Univ Halle Wittenberg, Inst Biol, Halle, Saale, Germany
推荐引用方式 GB/T 7714	Wesse, Christina,Welk, Erik,Hurka, Herbert,et al. Geographical pattern of genetic diversity in Capsella bursa-pastoris (Brassicaceae)-A global perspective[J].
APA	Wesse, Christina,Welk, Erik,Hurka, Herbert,&Neuffer, Barbara.
MLA	Wesse, Christina,et al."Geographical pattern of genetic diversity in Capsella bursa-pastoris (Brassicaceae)-A global perspective".ECOLOGY AND EVOLUTION