干旱区生态环境知识资源中心(Arid): Isolation-by-environment as a driver of genetic differentiation among populations of the only broad-leaved evergreen shrub Ammopiptanthus mongolicus in Asian temperate deserts

Arid

DOI	10.1038/s41598-019-48472-y
	Isolation-by-environment as a driver of genetic differentiation among populations of the only broad-leaved evergreen shrub Ammopiptanthus mongolicus in Asian temperate deserts
	Jiang, Shan 1; Luo, Min-Xin 2; Gao, Run-Hong 3; Zhang, Wei 4; Yang, Yong-Zhi 3; Li, Ying-Jie 3; Liao, Pei-Chun 2
通讯作者	Gao, Run-Hong ; Liao, Pei-Chun
来源期刊	SCIENTIFIC REPORTS
ISSN	2045-2322
出版年	2019
卷号	9
英文摘要	Whether the effect of migration-selection-drift equilibrium on population structure is governed by spatial or environmental differences is usually elucidated by isolation-by-distance (IBD), isolation-by-environment (IBE), and isolation-by-resistance (IBR) tests. The population structure of Ammopiptanthus mongolicus, a broad-leaved evergreen psammophyte in eastern Central Asia, was previously thought to follow an isolation by distance pattern. However, recent studies have emphasized the effects of environmental factors on its growth and distribution, suggesting an important influence of local adaptation on the genetic structure of the species. Using inter-simple sequence repeat (ISSR) markers, we verified the previously inferred low intra-population variation and high inter-population differentiation. However, in contrast to previous studies, the results of partial Mantel tests and a maximum likelihood population effects mixed model (MLPE) suggested that local climate differences, rather than geographic distances or resistance distances, are the main factor affecting population differentiation. Further analysis with removal of multicollinear climatic variables and univariate MLPE found that summer and winter precipitation were crucial for shaping the current population genetic structure. Since local precipitation is related to the regeneration, colonization, and overwintering survival of A. mongolicus, its influence on demographic change may explain its effect on the population genetic structure. In addition, precipitation is related to terrain despite westward decreases, which explains the independence of genetic difference and geographic distance. The identified role of IBE suggests that collecting germplasm resources from genetically differentiated populations could be a more effective strategy to preserve the overall genetic diversity of the species than the establishment of corridors to enhance gene flow among populations.
类型	Article
语种	英语
国家	Peoples R China ; Taiwan
开放获取类型	Green Published, gold
收录类别	SCI-E
WOS记录号	WOS:000481590200049
WOS关键词	LOCAL ADAPTATION ; ENDANGERED SHRUB ; WILD BARLEY ; PATTERNS ; PLANT ; FLOW ; LEGUMINOSAE ; DIVERSITY ; STRESS ; IDENTIFICATION
WOS类目	Multidisciplinary Sciences
WOS研究方向	Science & Technology - Other Topics
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/218805
作者单位	1.Inner Mongolia Agr Univ, Coll Grassland Resources & Environm, Hohhot 010010, Peoples R China; 2.Natl Taiwan Normal Univ, Sch Life Sci, 88 Ting Chow Rd,Sec 4, Taipei 116, Taiwan; 3.Inner Mongolia Agr Univ, Coll Forestry, Hohhot 010019, Peoples R China; 4.Inner Mongolia Agr Univ, Coll Mech & Elect Engn, Hohhot 010018, Peoples R China
推荐引用方式 GB/T 7714	Jiang, Shan,Luo, Min-Xin,Gao, Run-Hong,et al. Isolation-by-environment as a driver of genetic differentiation among populations of the only broad-leaved evergreen shrub Ammopiptanthus mongolicus in Asian temperate deserts[J],2019,9.
APA	Jiang, Shan.,Luo, Min-Xin.,Gao, Run-Hong.,Zhang, Wei.,Yang, Yong-Zhi.,...&Liao, Pei-Chun.(2019).Isolation-by-environment as a driver of genetic differentiation among populations of the only broad-leaved evergreen shrub Ammopiptanthus mongolicus in Asian temperate deserts.SCIENTIFIC REPORTS,9.
MLA	Jiang, Shan,et al."Isolation-by-environment as a driver of genetic differentiation among populations of the only broad-leaved evergreen shrub Ammopiptanthus mongolicus in Asian temperate deserts".SCIENTIFIC REPORTS 9(2019).