What drivers phenotypic divergence in Leymus chinensis (Poaceae) on large-scale gradient, climate or genetic differentiation?

doi:10.1038/srep26288

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	What drivers phenotypic divergence in Leymus chinensis (Poaceae) on large-scale gradient, climate or genetic differentiation?
	Yuan, Shan; Ma, Linna; Guo, Chengyuan; Wang, Renzhong
刊名	SCIENTIFIC REPORTS
	2016
卷号	6
ISSN号	2045-2322
DOI	10.1038/srep26288
文献子类	Article
英文摘要	Elucidating the driving factors among-population divergence is an important task in evolutionary biology, however the relative contribution from natural selection and neutral genetic differentiation has been less debated. A manipulation experiment was conducted to examine whether the phenotypic divergence of Leymus chinensis depended on climate variations or genetic differentiations at 18 wild sites along a longitudinal gradient from 114 to 124 degrees E in northeast China and at common garden condition of transplantation. Demographical, morphological and physiological phenotypes of 18 L. chinensis populations exhibited significant divergence along the gradient, but these divergent variations narrowed significantly at the transplantation. Moreover, most of the phenotypes were significantly correlated with mean annual precipitation and temperature in wild sites, suggesting that climatic variables played vital roles in phenotypic divergence of the species. Relative greater heterozygosity (H-E), genotype evenness (E) and Shannon-Wiener diversity (I) in western group of populations suggested that genetic differentiation also drove phenotypic divergence of the species. However, neutral genetic differentiation (F-ST = 0.041) was greatly lower than quantitative differentiation (Q(ST) = 0.199), indicating that divergent selection/climate variable was the main factor in determining the phenotypic divergence of the species along the large-scale gradient.
学科主题	Multidisciplinary Sciences
出版地	BERLIN
WOS关键词	LOCAL ADAPTATION ; POPULATION-STRUCTURE ; PROLINE ACCUMULATION ; NATURAL-SELECTION ; FLOW ; EVOLUTIONARY ; PATTERNS ; STRESS ; DIVERSITY ; INFERENCE
WOS研究方向	Science Citation Index Expanded (SCI-EXPANDED)
语种	英语
出版者	NATURE RESEARCH
WOS记录号	WOS:000376065600001
资助机构	National Scientific Foundation of ChinaNational Natural Science Foundation of China (NSFC) [31470404, 31070228, 31272493]
内容类型	期刊论文
源URL	[http://ir.ibcas.ac.cn/handle/2S10CLM1/24537]
专题	植被与环境变化国家重点实验室
作者单位	Chinese Acad Sci, Inst Bot, State Key Lab Vegetat & Environm Change, 20 Nanxincun, Beijing 100093, Peoples R China
推荐引用方式 GB/T 7714	Yuan, Shan,Ma, Linna,Guo, Chengyuan,et al. What drivers phenotypic divergence in Leymus chinensis (Poaceae) on large-scale gradient, climate or genetic differentiation?[J]. SCIENTIFIC REPORTS,2016,6.
APA	Yuan, Shan,Ma, Linna,Guo, Chengyuan,&Wang, Renzhong.(2016).What drivers phenotypic divergence in Leymus chinensis (Poaceae) on large-scale gradient, climate or genetic differentiation?.SCIENTIFIC REPORTS,6.
MLA	Yuan, Shan,et al."What drivers phenotypic divergence in Leymus chinensis (Poaceae) on large-scale gradient, climate or genetic differentiation?".SCIENTIFIC REPORTS 6(2016).