Knowledge Management System of Northwest Institute of Plateau Biology, CAS
| Genetic diversity and population structure of Swertia tetraptera (Gentianaceae), an endemic species of Qinghai-Tibetan Plateau | |
| Yang, Lucun1,2; Zhou, Guoying1; Chen, Guichen1 | |
| 2011-08-01 | |
| 发表期刊 | BIOCHEMICAL SYSTEMATICS AND ECOLOGY
 |
| ISSN | 0305-1978 |
| 卷号 | 39期号:4-6页码:302-308 |
| 文章类型 | Article |
| 摘要 | Swertia tetraptera Maxim is an annual alpine herb endemic to the Qinghai-Tibetan Plateau (QTP). Its populations are locally scattered as isolated patches throughout this region. Genetic variation within and among thirty-four populations of this species was assessed using ISSR fingerprinting with 10 primers. High levels of genetic diversity exist within species (P ？ 98.9%, I ？ 0.3475; He ？ 0.2227), while the within-population diversity is low (P ？ 32.7%, I ？ 0.177; He ？ 0.12). High levels of genetic differentiation were detectedamong populations based on various statistics, including Nei’s genetic diversity analysis (GST ？ 0.4608), Bayesian analysis (qB ？ 0.476) and AMOVA (FST ？ 0.57). That is, populations shared low levels of genetic identity (I ？ 0.2622–0.0966). This genetic structure was probably due to severe genetic drift, breeding system and limited gene flow. The observed genetic structure of the populations implies that different populations across the distribution range of the species should be sampled to maintain high genetic diversity when a conservation strategy is implemented.; Swertia tetraptera Maxim is an annual alpine herb endemic to the Qinghai-Tibetan Plateau (QTP). Its populations are locally scattered as isolated patches throughout this region. Genetic variation within and among thirty-four populations of this species was assessed using ISSR fingerprinting with 10 primers. High levels of genetic diversity exist within species (P = 98.9%, I = 0.3475; He = 0.2227), while the within-population diversity is low (P = 32.7%, I = 0.177; He = 0.12). High levels of genetic differentiation were detected among populations based on various statistics, including Nei's genetic diversity analysis (G(ST) = 0.4608), Bayesian analysis (theta(B) = 0.476) and AMOVA (F(ST) = 0.57). That is, populations shared low levels of genetic identity (I = 0.2622-0.0966). This genetic structure was probably due to severe genetic drift, breeding system and limited gene flow. The observed genetic structure of the populations implies that different populations across the distribution range of the species should be sampled to maintain high genetic diversity when a conservation strategy is implemented. (C) 2011 Elsevier Ltd. All rights reserved. |
| 关键词 | Swertia Tetraptera Genetic Structure Genetic Diversity Issr |
| WOS标题词 | Science & Technology ; Life Sciences & Biomedicine |
| 关键词[WOS] | SIMPLE SEQUENCE REPEATS ; MEGACODON-STYLOPHORUS ; MARKERS ; DIFFERENTIATION ; PHYLOGEOGRAPHY ; EMBRYOLOGY ; DISTANCE ; CHINA ; ISSR ; FLOW |
| 收录类别 | SCI |
| 语种 | 英语 |
| 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:000297601400009 |
| 引用统计 | |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://210.75.249.4/handle/363003/2060 |
| 专题 | 中国科学院西北高原生物研究所 |
| 作者单位 | 1.Chinese Acad Sci, NW Inst Plateau Biol, Xining 810008, Peoples R China 2.Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China |
| 推荐引用方式 GB/T 7714 | Yang, Lucun,Zhou, Guoying,Chen, Guichen. Genetic diversity and population structure of Swertia tetraptera (Gentianaceae), an endemic species of Qinghai-Tibetan Plateau[J]. BIOCHEMICAL SYSTEMATICS AND ECOLOGY,2011,39(4-6):302-308. |
| APA | Yang, Lucun,Zhou, Guoying,&Chen, Guichen.(2011).Genetic diversity and population structure of Swertia tetraptera (Gentianaceae), an endemic species of Qinghai-Tibetan Plateau.BIOCHEMICAL SYSTEMATICS AND ECOLOGY,39(4-6),302-308. |
| MLA | Yang, Lucun,et al."Genetic diversity and population structure of Swertia tetraptera (Gentianaceae), an endemic species of Qinghai-Tibetan Plateau".BIOCHEMICAL SYSTEMATICS AND ECOLOGY 39.4-6(2011):302-308. |
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