High Genetic Diversity and Low Differentiation of Michelia coriacea (Magnoliaceae), a Critically Endangered Endemic in Southeast Yunnan, China
文献类型：期刊论文
| 作者 | Zhao, Xingfeng1,2; Ma, Yongpeng1; Sun, Weibang1 ; Wen, Xiangying3; Milne, Richard4
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| 刊名 | INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
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| 出版日期 | 2012-04-01 |
| 卷号 | 13期号:4页码:4396-4411 |
| 关键词 | Michelia coriacea genetic diversity critically endangered plant ISSR markers SSR markers |
| ISSN号 | 1661-6596 |
| 通讯作者 | Sun, WB (reprint author), Chinese Acad Sci, Kunming Inst Bot, Kunming Bot Garden, Kunming, Peoples R China, xingfengzhao@ffichina.org ; mayongpeng@mail.kib.ac.cn ; wbsun@mail.kib.ac.cn ; xiangyingwen@mail.scib.ac.cn ; r.milne@ed.ac.uk |
| 英文摘要 | Michelia coriacea, a critically endangered tree, has a restricted and fragmented distribution in Southeast Yunnan Province, China. The genetic diversity, genetic structure and gene flow in the three extant populations of this species were detected by 10 inter-simple sequence repeat (ISSR) markers and 11 simple sequence repeat (SSR) markers. Examination of genetic diversity revealed that the species maintained a relatively high level of genetic diversity at the species level (percentage of polymorphic bands) PPB = 96.36% from ISSRs; PPL (percentage of polymorphic loci) = 95.56% from SSRs, despite several fragmental populations. Low levels of genetic differentiation among the populations of M. coriacea were detected by Nei's G(st) = 0.187 for ISSR and Wright's F-st = 0.090 for SSR markers, which is further confirmed by Bayesian model-based STRUCTURE and PCoA analysis that could not reveal a clear separation between populations, although YKP was differentiated to other two populations by ISSR markers. Meanwhile, AMOVA analysis also indicated that 22.84% and 13.90% of genetic variation existed among populations for ISSRs and SSRs, respectively. The high level of genetic diversity, low genetic differentiation, and the population, structure imply that the fragmented habitat and the isolated population of M. coriacea may be due to recent over-exploitation. Conservation and management of M. coriacea should concentrate on maintaining the high level of genetic variability through both in and ex-situ conservation actions. |
| 学科主题 | Chemistry, Multidisciplinary |
| 类目[WOS] | Chemistry, Multidisciplinary |
| 研究领域[WOS] | Chemistry |
| 关键词[WOS] | CONSERVATION GENETICS ; POPULATION-GENETICS ; SSR MARKERS ; RAPD ; ISSR ; RARE ; ISLAND ; AFLP ; FLOW ; PROTEACEAE |
| 收录类别 | SCI |
| 资助信息 | China's Yunnan government[2006PY-48]; Botanic Gardens Conservation International (BGCI)[6206/R4331] |
| 语种 | 英语 |
| WOS记录号 | WOS:000303454700025 |
| 公开日期 | 2012-06-07 |
| 源URL | [http://ir.kib.ac.cn:8080/handle/151853/10509]  |
| 专题 | 昆明植物研究所_资源植物与生物技术所级重点实验室 |
| 作者单位 | 1.Chinese Acad Sci, Kunming Inst Bot, Kunming Bot Garden, Kunming, Peoples R China 2.Fauna & Flora Int China Programme, Beijing 100101, Peoples R China 3.Chinese Acad Sci, S China Bot Garden, Guangzhou 510650, Peoples R China 4.Univ Edinburgh, Inst Mol Plant Sci, Edinburgh EH9 3JH, Midlothian, Scotland |
| 推荐引用方式 GB/T 7714 | Zhao, Xingfeng,Ma, Yongpeng,Sun, Weibang,et al. High Genetic Diversity and Low Differentiation of Michelia coriacea (Magnoliaceae), a Critically Endangered Endemic in Southeast Yunnan, China[J]. INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES,2012,13(4):4396-4411. |
| APA | Zhao, Xingfeng,Ma, Yongpeng,Sun, Weibang,Wen, Xiangying,&Milne, Richard.(2012).High Genetic Diversity and Low Differentiation of Michelia coriacea (Magnoliaceae), a Critically Endangered Endemic in Southeast Yunnan, China.INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES,13(4),4396-4411. |
| MLA | Zhao, Xingfeng,et al."High Genetic Diversity and Low Differentiation of Michelia coriacea (Magnoliaceae), a Critically Endangered Endemic in Southeast Yunnan, China".INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES 13.4(2012):4396-4411. |
入库方式： OAI收割
来源：昆明植物研究所
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