High genetic diversity and differentiation of an extremely narrowly distributed and critically endangered decaploid rose (Rosa praelucens): implications for its conservation
文献类型：期刊论文
| 作者 | Jian, Hongying; Li, Shufa; Guo, Jianling; Li, Shubin; Wang, Qigang; Yan, Huijun; Qiu, Xianqin; Zhang, Yonghong; Cai, Zhiquan; Volis, Sergei |
| 刊名 | CONSERVATION GENETICS
 |
| 出版日期 | 2018 |
| 卷号 | 19期号:4页码:761-776 |
| ISSN号 | 1566-0621 |
| 英文摘要 | Rosa praelucens is a critically endangered decaploid alpine rose with an extremely narrow geographic distribution in Northwestern Yunnan, China. We sampled almost all the extant individuals (527 individuals in 31 natural locations and 56 individuals preserved in three local living collections) to assess the genetic variation and to probe the genetic connectivity among the individuals and populations based on three cpDNA intergenic spacers and six fluorescent amplified fragment length polymorphism (AFLP) markers. The morphological traits from seven populations were also measured. R. praelucens exhibited high levels of morphological variation, genetic diversity, and differentiation. The extant individuals were clustered into eight groups in neighbor-net networks, and subsequent Bayesian analysis assigned them into three larger gene pools, both in accordance with their morphological traits, especially flower color. The living collections embraced two private cpDNA haplotypes and included three out of the species' total eight AFLP genotypes. Rhizome clonal growth, decaploid, and mixed breeding system may largely contribute to high genetic diversity and differentiation in R. praelucens. We concluded that the endangered status of R. praelucens may mainly be due to habitat fragmentation and loss and inherent reproductive difficulties, rather than low genetic diversity. The populations contributing higher cpDNA genetic diversity, representing more AFLP genotypes, and encompassing private cpDNA haplotypes should be given conservation priority by creating plant-micro reserves. The living collections should also be targeted for further ex situ conservation, population recovery, and reintroduction of R. praelucens plants. |
| 语种 | 英语 |
| 源URL | [http://ir.kib.ac.cn/handle/151853/64700]  |
| 专题 | 中国科学院昆明植物研究所 |
| 推荐引用方式 GB/T 7714 | Jian, Hongying,Li, Shufa,Guo, Jianling,et al. High genetic diversity and differentiation of an extremely narrowly distributed and critically endangered decaploid rose (Rosa praelucens): implications for its conservation[J]. CONSERVATION GENETICS,2018,19(4):761-776. |
| APA | Jian, Hongying.,Li, Shufa.,Guo, Jianling.,Li, Shubin.,Wang, Qigang.,...&Tang, Kaixue.(2018).High genetic diversity and differentiation of an extremely narrowly distributed and critically endangered decaploid rose (Rosa praelucens): implications for its conservation.CONSERVATION GENETICS,19(4),761-776. |
| MLA | Jian, Hongying,et al."High genetic diversity and differentiation of an extremely narrowly distributed and critically endangered decaploid rose (Rosa praelucens): implications for its conservation".CONSERVATION GENETICS 19.4(2018):761-776. |
入库方式： OAI收割
来源：昆明植物研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。