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Vertical adaptive radiation in ocean Prochlorococcus: Evolutionary implications of the Chl b/a ratio from molecular evidence

文献类型：期刊论文

作者Qin, Song1; Wang, Yinchu1,2
刊名PROGRESS IN NATURAL SCIENCE
出版日期2009-11-10
卷号19期号:11页码:1561-1568
ISSN号1002-0071
关键词Prochlorococcus Chl B/a Ratio Adaptive Evolution Trait Evolution Ecotype Differentiation
通讯作者Qin, S, Chinese Acad Sci, Yantai Inst Coastal Zone Res Sustainable Dev, Yantai 264003, Peoples R China
产权排序Chinese Acad Sci, Yantai Inst Coastal Zone Res Sustainable Dev;Chinese Acad Sci, Grad Univ
文献子类Article
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.
学科主题Multidisciplinary Sciences
URL标识查看原文
WOS关键词CHLOROPHYLL-B ; POSITIVE SELECTION ; STATISTICAL TESTS ; ARABIDOPSIS-THALIANA ; DNA POLYMORPHISM ; OXYGENASE ; CYANOBACTERIA ; BIOSYNTHESIS ; PHYLOGENIES ; RECOMBINATION
WOS研究方向Materials Science ; Science & Technology - Other Topics
语种英语
WOS记录号WOS:000271340100014
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
公开日期2011-07-05
源URL[http://ir.yic.ac.cn/handle/133337/3488]  
专题烟台海岸带研究所_海岸带生物学与生物资源利用所重点实验室
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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来源：烟台海岸带研究所

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