Genetic diversity and domestication origin of tea plant Camellia taliensis(Theaceae) as revealed by microsatellite markers
文献类型：期刊论文
| 作者 | Zhao,Dong-wei1,2; Yang,Jun-bo3; Yang,Shi-xiong1; Kato,Kenji4; Luo,Jian-ping5 |
| 刊名 | BMC Plant Biology
 |
| 出版日期 | 2014-01-09 |
| 卷号 | 14期号:1 |
| 关键词 | Camellia taliensis Domestication Genetic diversity Microsatellite Tea plant |
| ISSN号 | 1471-2229 |
| DOI | 10.1186/1471-2229-14-14 |
| 英文摘要 | AbstractBackgroundTea is one of the most popular beverages in the world. Many species in the Thea section of the Camellia genus can be processed for drinking and have been domesticated. However, few investigations have focused on the genetic consequence of domestication and geographic origin of landraces on tea plants using credible wild and planted populations of a single species. Here, C. taliensis provides us with a unique opportunity to explore these issues.ResultsFourteen nuclear microsatellite loci were employed to determine the genetic diversity and domestication origin of C. taliensis, which were represented by 587 individuals from 25 wild, planted and recently domesticated populations. C. taliensis showed a moderate high level of overall genetic diversity. The greater reduction of genetic diversity and stronger genetic drift were detected in the wild group than in the recently domesticated group, indicating the loss of genetic diversity of wild populations due to overexploitation and habitat fragmentation. Instead of the endangered wild trees, recently domesticated individuals were used to compare with the planted trees for detecting the genetic consequence of domestication. A little and non-significant reduction in genetic diversity was found during domestication. The long life cycle, selection for leaf traits and gene flow between populations will delay the emergence of bottleneck in planted trees. Both phylogenetic and assignment analyses suggested that planted trees may have been domesticated from the adjacent central forest of western Yunnan and dispersed artificially to distant places.ConclusionsThis study contributes to the knowledge about levels and distribution of genetic diversity of C. taliensis and provides new insights into genetic consequence of domestication and geographic origin of planted trees of this species. As an endemic tea source plant, wild, planted and recently domesticated C. taliensis trees should all be protected for their unique genetic characteristics, which are valuable for tea breeding. |
| 语种 | 英语 |
| WOS记录号 | BMC:10.1186/1471-2229-14-14 |
| 出版者 | BioMed Central |
| 源URL | [http://ir.kib.ac.cn/handle/151853/61766]  |
| 专题 | 中国科学院昆明植物研究所 |
| 通讯作者 | Yang,Shi-xiong |
| 作者单位 | 1.Chinese Academy of Sciences; Key Laboratory for Plant Diversity and Biogeography of East Asia, Kunming Institute of Botany 2.University of Chinese Academy of Sciences 3.Chinese Academy of Sciences; Germplasm Bank of Wild Species, Kunming Institute of Botany 4.Okayama University; Graduate School of Environmental and Life Science 5.Hefei University of Technology; School of Biotechnology and Food Engineering |
| 推荐引用方式 GB/T 7714 | Zhao,Dong-wei,Yang,Jun-bo,Yang,Shi-xiong,et al. Genetic diversity and domestication origin of tea plant Camellia taliensis(Theaceae) as revealed by microsatellite markers[J]. BMC Plant Biology,2014,14(1). |
| APA | Zhao,Dong-wei,Yang,Jun-bo,Yang,Shi-xiong,Kato,Kenji,&Luo,Jian-ping.(2014).Genetic diversity and domestication origin of tea plant Camellia taliensis(Theaceae) as revealed by microsatellite markers.BMC Plant Biology,14(1). |
| MLA | Zhao,Dong-wei,et al."Genetic diversity and domestication origin of tea plant Camellia taliensis(Theaceae) as revealed by microsatellite markers".BMC Plant Biology 14.1(2014). |
入库方式： OAI收割
来源：昆明植物研究所
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