Knowledge Management System of Northwest Institute of Plateau Biology, CAS
Population genetic structure and demographic history of Medicago ruthenica (Fabaceae) on the Qinghai-Tibetan Plateau based on nuclear ITS and chloroplast markers | |
Wu, Xiaopei1,2; Liu, Demei1; Gulzar, Khan1; Shen, Yingfang1,2; Wang, Haiqing1 | |
2016-12-01 | |
发表期刊 | BIOCHEMICAL SYSTEMATICS AND ECOLOGY |
卷号 | 69页码:204-212 |
文章类型 | Article |
摘要 | Medicago ruthenica (L.) Ledebour, a species well adapted to dry, stony and desert habitats, has more tolerance to drought, cold and saline conditions than other alfalfas. Characterization of the genetic diversity and population genetic structure of M. ruthenica is important for its domestication as a legume forage species and for the development of other cultivated alfalfas with abiotic stress tolerance. However, studies of the genetic diversity and pattern of genetic structure of M. ruthenica distributed on the Qinghai-Tibetan Plateau (QTP) have been limited. In this study, nuclear internal transcribed spacer (ITS) and chloroplast (psbA-trnH) DNA regions were used to evaluate the genetic diversity, structure and population dynamics of 12 wild M. ruthenica populations distributed on the QTP and Inner Mongolia. Although the chloroplast psbA-trnH region was more variable than nuclear ITS, both markers indicated high interpopulation genetic differentiation, with all populations clustered into two groups based on neighbor joining clustering. Mismatch distribution and neutrality tests revealed local or small-scale demographic expansion. As inferred by morphology and genetic structure, M. ruthenica can be divided into two ecotypes, a result suggested previously. Our findings imply that the genetic divergence of M. ruthenica may be due to climatic oscillations or earlier uplifts of the QTP. (C) 2016 Elsevier Ltd. All rights reserved. |
关键词 | Medicago Ruthenica Qinghai-tibetan Plateau Genetic Diversity Genetic Differentiation Range Expansion |
WOS标题词 | Science & Technology ; Life Sciences & Biomedicine |
DOI | 10.1016/j.bse.2016.10.005 |
关键词[WOS] | DNA POLYMORPHISM ; INNER-MONGOLIA ; PHYLOGEOGRAPHY ; MITOCHONDRIAL ; DIFFERENTIATION ; LEGUMINOSAE ; EVOLUTION ; SOFTWARE ; ROSACEAE ; SYSTEM |
收录类别 | SCI |
语种 | 英语 |
项目资助者 | Foundation of Application of Basic Research Project of Qinghai Province(2014-ZJ-764) ; Science and Technology Service Network Initiative of the Chinese Academy of Sciences(KFJ-SW-STS-177) ; Joint Scholarship Project of the Western Light Foundation of the Chinese Academy of Sciences |
WOS研究方向 | Biochemistry & Molecular Biology ; Environmental Sciences & Ecology ; Evolutionary Biology |
WOS类目 | Biochemistry & Molecular Biology ; Ecology ; Evolutionary Biology |
WOS记录号 | WOS:000390497300027 |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://210.75.249.4/handle/363003/6646 |
专题 | 中国科学院西北高原生物研究所 |
作者单位 | 1.Chinese Acad Sci, Key Lab Adaptat & Evolut Plateau Biota, Northwest Inst Plateau Biol, Xining 810001, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100039, Peoples R China |
推荐引用方式 GB/T 7714 | Wu, Xiaopei,Liu, Demei,Gulzar, Khan,et al. Population genetic structure and demographic history of Medicago ruthenica (Fabaceae) on the Qinghai-Tibetan Plateau based on nuclear ITS and chloroplast markers[J]. BIOCHEMICAL SYSTEMATICS AND ECOLOGY,2016,69:204-212. |
APA | Wu, Xiaopei,Liu, Demei,Gulzar, Khan,Shen, Yingfang,&Wang, Haiqing.(2016).Population genetic structure and demographic history of Medicago ruthenica (Fabaceae) on the Qinghai-Tibetan Plateau based on nuclear ITS and chloroplast markers.BIOCHEMICAL SYSTEMATICS AND ECOLOGY,69,204-212. |
MLA | Wu, Xiaopei,et al."Population genetic structure and demographic history of Medicago ruthenica (Fabaceae) on the Qinghai-Tibetan Plateau based on nuclear ITS and chloroplast markers".BIOCHEMICAL SYSTEMATICS AND ECOLOGY 69(2016):204-212. |
条目包含的文件 | 条目无相关文件。 |
除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。
修改评论