Rapid microevolution during recent range expansion to harsh environments
文献类型：期刊论文
| 作者 | Lin, Yaping; Zhan, Aibin; Li, Shiguo; Ni, Ping; Shenkar, Noa; Chen, Yiyong |
| 刊名 | BMC EVOLUTIONARY BIOLOGY
 |
| 出版日期 | 2018-12-07 |
| 卷号 | 18页码:- |
| 关键词 | Biological invasion Rapid microevolution Range expansion Invasive species Red Sea Adaptive genes Ciona robusta |
| ISSN号 | 1471-2148 |
| 文献子类 | Article |
| 英文摘要 | BackgroundAdaptive evolution is one of the crucial mechanisms for organisms to survive and thrive in new environments. Recent studies suggest that adaptive evolution could rapidly occur in species to respond to novel environments or environmental challenges during range expansion. However, for environmental adaptation, many studies successfully detected phenotypic features associated with local environments, but did not provide ample genetic evidence on microevolutionary dynamics. It is therefore crucial to thoroughly investigate the genetic basis of rapid microevolution in response to environmental changes, in particular on what genes and associated variation are responsible for environmental challenges. Here, we genotyped genome-wide gene-associated microsatellites to detect genetic signatures of rapid microevolution of a marine tunicate invader, Ciona robusta, during recent range expansion to the harsh environment in the Red Sea.ResultsThe Red Sea population was significantly differentiated from the other global populations. The genome-wide scan, as well as multiple analytical methods, successfully identified a set of adaptive genes. Interestingly, the allele frequency largely varied at several adaptive loci in the Red Sea population, and we found significant correlations between allele frequency and local environmental factors at these adaptive loci. Furthermore, a set of genes were annotated to get involved in local temperature and salinity adaptation, and the identified adaptive genes may largely contribute to the invasion success to harsh environments.ConclusionsAll the evidence obtained in this study clearly showed that environment-driven selection had left detectable signatures in the genome of Ciona robusta within a few generations. Such a rapid microevolutionary process is largely responsible for the harsh environmental adaptation and therefore contributes to invasion success in different aquatic ecosystems with largely varied environmental factors. |
| 源URL | [http://ir.rcees.ac.cn/handle/311016/41291]  |
| 专题 | 生态环境研究中心_中国科学院环境生物技术重点实验室 |
| 推荐引用方式 GB/T 7714 | Lin, Yaping,Zhan, Aibin,Li, Shiguo,et al. Rapid microevolution during recent range expansion to harsh environments[J]. BMC EVOLUTIONARY BIOLOGY,2018,18:-. |
| APA | Lin, Yaping,Zhan, Aibin,Li, Shiguo,Ni, Ping,Shenkar, Noa,&Chen, Yiyong.(2018).Rapid microevolution during recent range expansion to harsh environments.BMC EVOLUTIONARY BIOLOGY,18,-. |
| MLA | Lin, Yaping,et al."Rapid microevolution during recent range expansion to harsh environments".BMC EVOLUTIONARY BIOLOGY 18(2018):-. |
入库方式： OAI收割
来源：生态环境研究中心
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