Phylogeography of the Arid Shrub Atraphaxis frutescens (Polygonaceae) in Northwestern China: Evidence From cpDNA Sequences
文献类型：期刊论文
| 作者 | Xu, Zhe3; Zhang, Ming-Li |
| 刊名 | JOURNAL OF HEREDITY
 |
| 出版日期 | 2015 |
| 卷号 | 106期号:2页码:184-195 |
| 关键词 | Atraphaxis frutescens demography intraspecific differentiation northwestern China refugia |
| ISSN号 | 0022-1503 |
| DOI | 10.1093/jhered/esu078 |
| 文献子类 | Article |
| 英文摘要 | Climatic fluctuations during the Pleistocene are usually considered as a significant factor in shaping intraspecific genetic variation and influencing demographic histories. To well-understand these processes in desert northwest China, we selected arid adapted Atraphaxis frutescens as the study species. Two cpDNA regions (psbK-psbI, psbB-psbH) were sequenced in 272 individuals from 33 natural populations across the range of this shrub, and 10 haplotypes were identified. It was found to contain high levels of total gene diversity (H-T = 0.858), and low levels of within-population diversity (H-S = 0.092). Analysis of molecular variance (AMOVA) indicates that genetic differentiation primarily occurs among groups of populations. Based on BEAST (Bayesian Evolutionary Analysis Sampling Trees) analysis, we suggest that intraspecific differentiation of the species, resulting from isolated populations, accompanied enhanced desertification during the middle and late Pleistocene. The expansion of the Gurbantunggut and Kumtag deserts in this area appears to have triggered divergence among populations of the western, central, and eastern portions of the region and shaped genetic differentiation among them. Two possible independent glacial refugia were predicted, the Ili Valley and the northern Junggar Basin. Extensive development of arid habitats (desert margin and arid piedmont grassland) coupled with a more equable climate because the early Holocene are factors likely to have generated recent expansion of A. frutescens. |
| 学科主题 | Evolutionary Biology ; Genetics & Heredity |
| 出版地 | CARY |
| 电子版国际标准刊号 | 1465-7333 |
| WOS关键词 | QUATERNARY ENVIRONMENTAL-CHANGE ; TIANSHAN MOUNTAINS ; CLIMATIC OSCILLATIONS ; GENETIC-STRUCTURE ; WESTERN CHINA ; DESERT SHRUB ; CHLOROPLAST ; HISTORY ; PLANTS ; DNA |
| WOS研究方向 | Science Citation Index Expanded (SCI-EXPANDED) |
| 语种 | 英语 |
| WOS记录号 | WOS:000352296600005 |
| 出版者 | OXFORD UNIV PRESS INC |
| 资助机构 | China National Basic Research Special Program [2012FY111500] ; Innovation Research Group Program of Chinese Academy of Sciences and State Administration of Foreign Experts Affairs of China [KZCX2-YW-T09] ; State International Science and Technology Cooperation Program of China [2010DFA92720] ; Xinjiang Institute of Ecology and Geography, CAS |
| 源URL | [http://ir.ibcas.ac.cn/handle/2S10CLM1/25674]  |
| 专题 | 植物研究所_系统与进化植物学研究中心_系统与进化植物学研究中心_学位论文 |
| 作者单位 | 1.Univ Chinese Acad Sci, Beijing, Peoples R China 2.Chinese Acad Sci, Inst Bot, Beijing 100093, Peoples R China 3.Chinese Acad Sci, Xinjiang Inst Ecol & Geog, Key Lab Biogeog & Bioresource Arid Land, Urumqi, Peoples R China |
| 推荐引用方式 GB/T 7714 | Xu, Zhe,Zhang, Ming-Li. Phylogeography of the Arid Shrub Atraphaxis frutescens (Polygonaceae) in Northwestern China: Evidence From cpDNA Sequences[J]. JOURNAL OF HEREDITY,2015,106(2):184-195. |
| APA | Xu, Zhe,&Zhang, Ming-Li.(2015).Phylogeography of the Arid Shrub Atraphaxis frutescens (Polygonaceae) in Northwestern China: Evidence From cpDNA Sequences.JOURNAL OF HEREDITY,106(2),184-195. |
| MLA | Xu, Zhe,et al."Phylogeography of the Arid Shrub Atraphaxis frutescens (Polygonaceae) in Northwestern China: Evidence From cpDNA Sequences".JOURNAL OF HEREDITY 106.2(2015):184-195. |
入库方式： OAI收割
来源：植物研究所
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