Genetic consequences of fragmentation on populations of the terrestrial orchid Cymbidium goeringii
文献类型：期刊论文
| 作者 | Chung, Mi Yoon1; Nason, John D.; Lopez-Pujol, Jordi; Yamashiro, Tadashi4; Yang, Bo-Yun; Luo, Yi-Bo ; Chung, Myong Gi1
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| 刊名 | BIOLOGICAL CONSERVATION
 |
| 出版日期 | 2014 |
| 卷号 | 170页码:222-231 |
| 关键词 | Allozymes Conservation Cymbidium goeringii Fragmentation Genetic diversity Genetic structure |
| ISSN号 | 0006-3207 |
| DOI | 10.1016/j.biocon.2013.12.005 |
| 文献子类 | Article |
| 英文摘要 | Population genetics theory predicts that fragmented plant populations do exhibit less genetic diversity, greater genetic divergence, and higher rates of inbreeding than well-preserved, continuous populations. We investigated the effects of habitat fragmentation on levels and distribution of genetic diversity and inbreeding in the terrestrial orchid Cymbidium goeringii on three islands off the south coast of South Korea. We selected two case studies, each containing 10 fragmented and 10 continuous (i.e. undisturbed) populations (40 populations and 1493 individuals in total); for both case studies, fragmentation has been recorded for almost 200 years. Using nine polymorphic allozyme loci, we compared genetic diversity and structure between fragmented and continuous populations for each of two case studies. We found that continuous populations harboured significantly greater allelic richness (AR) than fragmented ones. We also found that fragmented populations exhibited two- to threefold higher degree of genetic differentiation (F-ST) than continuous ones. We did not found, however, significant differences for expected heterozygosity (H-e) and fixation index (F-IS). Fragmentation effects are noticeable in C goeringii as AR was significantly reduced in fragmented populations. The lack of significant differences for H-e would be attributable either to insufficient number of generations elapsed from the beginning of fragmentation, to the high density of individuals in undisturbed populations, or to both. The loss of allelic diversity detected in disturbed populations of C. goeringii is still small, and could be recovered if the current moderate levels of gene flow are maintained and no further fragmentation is occurring. Crown Copyright (C) 2013 Published by Elsevier Ltd. All rights reserved. |
| 学科主题 | Biodiversity Conservation ; Ecology ; Environmental Sciences |
| 出版地 | OXFORD |
| 电子版国际标准刊号 | 1873-2917 |
| WOS关键词 | HABITAT FRAGMENTATION ; FOREST FRAGMENTATION ; TROPICAL TREE ; ALLELIC RICHNESS ; F-STATISTICS ; DIVERSITY ; FLOW ; DIFFERENTIATION ; BOTTLENECK ; COMMON |
| WOS研究方向 | Biodiversity & Conservation ; Environmental Sciences & Ecology |
| 语种 | 英语 |
| WOS记录号 | WOS:000333774500026 |
| 出版者 | ELSEVIER SCI LTD |
| 资助机构 | Korea Research Foundation [KRF-2007-532-C00022] |
| 源URL | [http://ir.ibcas.ac.cn/handle/2S10CLM1/27125]  |
| 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.Gyeongsang Natl Univ, Dept Biol, Jinju 660701, South Korea 2.Gyeongsang Natl Univ, Res Inst Nat Sci, Jinju 660701, South Korea 3.Nason, John D.] Iowa State Univ, Dept Ecol Evolut & Organismal Biol, Ames, IA 50011 USA 4.Univ Barcelona, Fac Farm, Lab Bot, BioC,GReB, E-08028 Barcelona, Spain 5.Univ Tokushima, Grad Sch Integrated Arts & Sci, Tokushima 7708502, Japan 6.Nanchang Univ, Coll Life Sci & Food Engn, Nanchang 33003, Peoples R China 7.Chinese Acad Sci, Inst Bot, State Key Lab Systemat & Evolutionary Bot, Beijing 100093, Peoples R China |
| 推荐引用方式 GB/T 7714 | Chung, Mi Yoon,Nason, John D.,Lopez-Pujol, Jordi,et al. Genetic consequences of fragmentation on populations of the terrestrial orchid Cymbidium goeringii[J]. BIOLOGICAL CONSERVATION,2014,170:222-231. |
| APA | Chung, Mi Yoon.,Nason, John D..,Lopez-Pujol, Jordi.,Yamashiro, Tadashi.,Yang, Bo-Yun.,...&Chung, Myong Gi.(2014).Genetic consequences of fragmentation on populations of the terrestrial orchid Cymbidium goeringii.BIOLOGICAL CONSERVATION,170,222-231. |
| MLA | Chung, Mi Yoon,et al."Genetic consequences of fragmentation on populations of the terrestrial orchid Cymbidium goeringii".BIOLOGICAL CONSERVATION 170(2014):222-231. |
入库方式： OAI收割
来源：植物研究所
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