Comparison of the extent of genetic variation of Vallisneria natans and its sympatric congener V. spinulosa in lakes of the middle-lower reaches of the Yangtze River
文献类型：期刊论文
| 作者 | Wang, Bin2,3,5; Song, Zhiping4; Liu, Guihua5; Lu, Fan4; Li, Wei1,5 |
| 刊名 | AQUATIC BOTANY
 |
| 出版日期 | 2010-05-01 |
| 卷号 | 92期号:4页码:233-238 |
| 关键词 | Vallisneria natans V. spinulosa Genetic variation ISSR Gene flow Population differentiation |
| ISSN号 | 0304-3770 |
| DOI | 10.1016/j.aquabot.2009.12.006 |
| 英文摘要 | Vallisneria natans and Vallisneria spinulosa are two morphologically very similar and sympatrically dominant submerged macrophytes in lakes of the middle-lower reaches of the Yangtze River. Genetic variation was compared based on a total of 196 individuals from six V. natans populations and 201 individuals from seven V. spinulosa populations. Using eight ISSR primers, a total of 139 and 129 DNA fragments were generated with 121 being polymorphic in V. natans and 99 in V. spinulosa. The two species maintained higher genetic variation both at the species and population levels in comparison with other aquatic macrophytes. A higher level of genetic diversity among populations was found in V. natans than in V. spinulosa: the percentage of polymorphic loci (PPL) in V. natans was 52-62% vs. 38-47% in V. spinulosa; gene diversity (H) was 0.21 in V. natans vs. 0.17 in V. spinulosa. Both an analysis of molecular variance (AMOVA) and F-estimation (F(ST)) showed that most of the total genetic variation resided within populations of both species (AMOVA: 85% and 80%; F(ST): 0.132 and 0.202), indicating low genetic differentiation between populations. Principal coordinates analysis (PCA) indicated evident gene flow between populations of both species. The outcrossing reproductive mode and pervasive gene flow might have played important roles in maintaining high genetic diversity and in shaping low population differentiation of the two Vallisneria species, while the extent of clonal growth might account for the different levels of population divergence between them. (C) 2010 Elsevier B.V. All rights reserved. |
| 资助项目 | National Scientific Foundation of China[29970065] ; National Talent Training Fund in Basic Research of China[J0630643] |
| WOS研究方向 | Plant Sciences ; Marine & Freshwater Biology |
| 语种 | 英语 |
| WOS记录号 | WOS:000276703100002 |
| 出版者 | ELSEVIER SCIENCE BV |
| 源URL | [http://202.127.146.157/handle/2RYDP1HH/952]  |
| 专题 | 中国科学院武汉植物园 |
| 通讯作者 | Li, Wei |
| 作者单位 | 1.Chinese Acad Sci, Key Lab Aquat Bot & Watershed Ecol, Wuhan 430074, Peoples R China 2.Shanghai Inst Landscaping & Gardening, Shanghai 200232, Peoples R China 3.Chinese Acad Sci, Grad Sch, Beijing, Peoples R China 4.Fudan Univ, Inst Biodivers Sci, Minist Educ, Key Lab Biodivers Sci & Ecol Engn, Shanghai 200433, Peoples R China 5.Chinese Acad Sci, Wuhan Bot Garden, Wuhan 430074, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wang, Bin,Song, Zhiping,Liu, Guihua,et al. Comparison of the extent of genetic variation of Vallisneria natans and its sympatric congener V. spinulosa in lakes of the middle-lower reaches of the Yangtze River[J]. AQUATIC BOTANY,2010,92(4):233-238. |
| APA | Wang, Bin,Song, Zhiping,Liu, Guihua,Lu, Fan,&Li, Wei.(2010).Comparison of the extent of genetic variation of Vallisneria natans and its sympatric congener V. spinulosa in lakes of the middle-lower reaches of the Yangtze River.AQUATIC BOTANY,92(4),233-238. |
| MLA | Wang, Bin,et al."Comparison of the extent of genetic variation of Vallisneria natans and its sympatric congener V. spinulosa in lakes of the middle-lower reaches of the Yangtze River".AQUATIC BOTANY 92.4(2010):233-238. |
入库方式： OAI收割
来源：武汉植物园
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