Arid
DOI10.1186/s12870-017-1147-7
Population genetic structure is shaped by historical, geographic, and environmental factors in the leguminous shrub Caragana microphylla on the Inner Mongolia Plateau of China
Xu, Bo1,2; Sun, Guoli1; Wang, Xuemin1; Lu, Jingwei1; Wang, Ian J.3; Wang, Zan1
通讯作者Wang, Ian J. ; Wang, Zan
来源期刊BMC PLANT BIOLOGY
ISSN1471-2229
出版年2017
卷号17
英文摘要

Background: Understanding how landscape factors, including suites of geographic and environmental variables, and both historical and contemporary ecological and evolutionary processes shape the distribution of genetic diversity is a primary goal of landscape and conservation genetics and may be particularly consequential for species involved in ecological restoration. In this study, we examine the factors that shape the distribution of genetic variation in a leguminous shrub (Caragana microphylla) important for restoration efforts on the Mongolian Plateau in China. This region houses several major bioclimatic gradients, and C. microphylla is an important restoration species because it stabilizes soils and prevents advancing desertification on the Inner Mongolia Plateau caused by ongoing climate change.


Results: We assembled an expansive genomic dataset, consisting of 22 microsatellite loci, four cpDNA regions, and 5788 genome-wide SNPs from ten populations of C. microphylla. We then applied ecological niche modelling and linear and non-linear regression techniques to investigate the historical and contemporary forces that explain patterns of genetic diversity and population structure in C. microphylla on the Inner Mongolia Plateau. We found strong evidence that both geographic and environmental heterogeneity contribute to genetic differentiation and that the spatial distribution of genetic diversity in C. microphylla appears to result partly from the presence of a glacial refugium at the southwestern edge of its current range.


Conclusions: These results suggest that geographic, environmental, and historical factors have all contributed to spatial genetic variation in this ecologically important species. These results should guide restoration plans to sustain genetic diversity during plant translocations.


英文关键词Ecological niche Isolation by distance Isolation by environment Plant ecology Population genetic structure Restoration ecology
类型Article
语种英语
国家Peoples R China ; USA
收录类别SCI-E
WOS记录号WOS:000414996300004
WOS关键词HORQIN SANDY LAND ; CHLOROPLAST DNA ; NATURAL-SELECTION ; NONCODING REGIONS ; UNIVERSAL PRIMERS ; GLACIAL REFUGIA ; CLIMATE-CHANGE ; DIVERSITY ; SOFTWARE ; DIFFERENTIATION
WOS类目Plant Sciences
WOS研究方向Plant Sciences
来源机构University of California, Berkeley
资源类型期刊论文
条目标识符http://119.78.100.177/qdio/handle/2XILL650/197919
作者单位1.Chinese Acad Agr Sci, Inst Anim Sci, Beijing 100193, Peoples R China;
2.Jilin Agr Univ, Anim Sci & Technol Coll, Changchun 130118, Jilin, Peoples R China;
3.Univ Calif Berkeley, Dept Environm Sci Policy & Management, Berkeley, CA 94720 USA
推荐引用方式
GB/T 7714
Xu, Bo,Sun, Guoli,Wang, Xuemin,et al. Population genetic structure is shaped by historical, geographic, and environmental factors in the leguminous shrub Caragana microphylla on the Inner Mongolia Plateau of China[J]. University of California, Berkeley,2017,17.
APA Xu, Bo,Sun, Guoli,Wang, Xuemin,Lu, Jingwei,Wang, Ian J.,&Wang, Zan.(2017).Population genetic structure is shaped by historical, geographic, and environmental factors in the leguminous shrub Caragana microphylla on the Inner Mongolia Plateau of China.BMC PLANT BIOLOGY,17.
MLA Xu, Bo,et al."Population genetic structure is shaped by historical, geographic, and environmental factors in the leguminous shrub Caragana microphylla on the Inner Mongolia Plateau of China".BMC PLANT BIOLOGY 17(2017).
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