| Vertical adaptive radiation in ocean Prochlorococcus: Evolutionary implications of the Chl b/a ratio from molecular evidence | |
Qin, Song1 ; Wang, Yinchu1,2
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| 发表期刊 | PROGRESS IN NATURAL SCIENCE
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| ISSN | 1002-0071 |
| 2009-11-10 | |
| 卷号 | 19期号:11页码:1561-1568 |
| 关键词 | Prochlorococcus Chl B/a Ratio Adaptive Evolution Trait Evolution Ecotype Differentiation |
| 产权排序 | Chinese Acad Sci, Yantai Inst Coastal Zone Res Sustainable Dev;Chinese Acad Sci, Grad Univ |
| 通讯作者 | Qin, S, Chinese Acad Sci, Yantai Inst Coastal Zone Res Sustainable Dev, Yantai 264003, Peoples R China |
| 作者部门 | 生物资源实验室 |
| 英文摘要 | Prochlorococcus is a marine cyanobacterium of global significance. Two ecotypes are adapted to either high-light (HL) or low-light (LL) conditions. The ratio between chlorophyll (Chl) a and b is a distinguishing characteristic of these two ecotypes. However, how this ratio evolved in Prochlorococcus during this ecotype differentiation remains unclear. Our analyses reveal that the ancestor of Prochlorococcus was typically low-light adapted. The LL ecotype showed a stagnant evolution, and the HL ecotype was recently diverged. There was an adaptive radiation after directional evolution in the Chl b/a ratio regulation. Recombination in chlorophyllide a oxygenase (CAO) and positive selection on Clp protease contributed to the directional evolution of Prochlorococcus. The recombinant fragments of CAO were correlated with a large group of shared coevolving sites. Evidence of positive selection was found in both subunits of Clp. Chl b/a ratio evolution, as annotated by molecular evidence, appears to be among the crucial reasons that explain how Prochlorococcus has become the dominant photosynthetic organism in the ocean. (C) 2009 National Natural Science Foundation of China and Chinese Academy of Sciences. Published by Elsevier Limited and Science in China Press. All rights reserved. |
| 文章类型 | Article |
| 资助机构 | National Natural Science Foundation of China [30670165]; Key Innovative Project of the Chinese Academy of Sciences [KZCX2-YW-209, KZCX2-YW-216]; CAS/SAFEA International Partnership Program for Creative Research Teams |
| 收录类别 | SCI |
| 语种 | 英语 |
| 关键词[WOS] | CHLOROPHYLL-B ; POSITIVE SELECTION ; STATISTICAL TESTS ; ARABIDOPSIS-THALIANA ; DNA POLYMORPHISM ; OXYGENASE ; CYANOBACTERIA ; BIOSYNTHESIS ; PHYLOGENIES ; RECOMBINATION |
| 研究领域[WOS] | Materials Science ; Science & Technology - Other Topics |
| WOS记录号 | WOS:000271340100014 |
| 引用统计 | |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://ir.yic.ac.cn/handle/133337/3487 |
| 专题 | 海岸带生物学与生物资源利用重点实验室_海岸带生物学与生物资源保护实验室 |
| 作者单位 | 1.Chinese Acad Sci, Yantai Inst Coastal Zone Res Sustainable Dev, Yantai 264003, Peoples R China 2.Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Qin, Song,Wang, Yinchu. Vertical adaptive radiation in ocean Prochlorococcus: Evolutionary implications of the Chl b/a ratio from molecular evidence[J]. PROGRESS IN NATURAL SCIENCE,2009,19(11):1561-1568. |
| APA | Qin, Song,&Wang, Yinchu.(2009).Vertical adaptive radiation in ocean Prochlorococcus: Evolutionary implications of the Chl b/a ratio from molecular evidence.PROGRESS IN NATURAL SCIENCE,19(11),1561-1568. |
| MLA | Qin, Song,et al."Vertical adaptive radiation in ocean Prochlorococcus: Evolutionary implications of the Chl b/a ratio from molecular evidence".PROGRESS IN NATURAL SCIENCE 19.11(2009):1561-1568. |
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