Evidence for positive selection in phycoerythrin genes of red algae and cyanobacteria Prochlorococcus and Synechococcus
文献类型：期刊论文
| 作者 | Qin, S; Zhao, FQ; Tseng, CK |
| 刊名 | PHOTOSYNTHETICA
 |
| 出版日期 | 2005 |
| 卷号 | 43期号:1页码:141-146 |
| 关键词 | Ceramium Boydenn Halymenia Sinensis Molecular Evolution Phylogenetic Analysis Plocamium Telfariae Positive Selection Synechococcus |
| ISSN号 | 0300-3604 |
| 文献子类 | Article |
| 英文摘要 | Because of the shortage of phycoerythrin (PE) gene sequences from rhodophytes, peBA encoding beta- and alpha-subunits of PE from three species of red algae (Ceramium boydenn, Halymenia sinensis, and Plocamium telfariae) were cloned and sequenced. Different selection forces have affected the evolution of PE lineages. 8.9 % of the codons were subject to positive selection within the PE lineages (excluding high-irradiance adapted Prochlorococcus). More than 40 % of the sites may be under positive selection, and nearly 20 % sites are weakly constraint sites in high-irradiance adapted Prochlorococcus. Sites most likely undergoing positive selection were found in the chromophore binding domains, suggesting that these sites have played important roles in environmental adaptation during PE diversification. Moreover, the heterogeneous distribution of positively selected sites along the PE gene was revealed from the comparison of low-irradiance adapted Prochlorococcus and marine Synechococcus, which firmly suggests that evolutionary patterns of PEs in these two lineages are significantly different.; Because of the shortage of phycoerythrin (PE) gene sequences from rhodophytes, peBA encoding beta- and alpha-subunits of PE from three species of red algae (Ceramium boydenn, Halymenia sinensis, and Plocamium telfariae) were cloned and sequenced. Different selection forces have affected the evolution of PE lineages. 8.9 % of the codons were subject to positive selection within the PE lineages (excluding high-irradiance adapted Prochlorococcus). More than 40 % of the sites may be under positive selection, and nearly 20 % sites are weakly constraint sites in high-irradiance adapted Prochlorococcus. Sites most likely undergoing positive selection were found in the chromophore binding domains, suggesting that these sites have played important roles in environmental adaptation during PE diversification. Moreover, the heterogeneous distribution of positively selected sites along the PE gene was revealed from the comparison of low-irradiance adapted Prochlorococcus and marine Synechococcus, which firmly suggests that evolutionary patterns of PEs in these two lineages are significantly different. |
| 学科主题 | Plant Sciences |
| 语种 | 英语 |
| WOS记录号 | WOS:000229248600017 |
| 公开日期 | 2010-12-22 |
| 源URL | [http://ir.qdio.ac.cn/handle/337002/3115]  |
| 专题 | 海洋研究所_实验海洋生物学重点实验室 |
| 作者单位 | Chinese Acad Sci, Grad Sch, Inst Oceanol, Qingdao 266071, Peoples R China |
| 推荐引用方式 GB/T 7714 | Qin, S,Zhao, FQ,Tseng, CK. Evidence for positive selection in phycoerythrin genes of red algae and cyanobacteria Prochlorococcus and Synechococcus[J]. PHOTOSYNTHETICA,2005,43(1):141-146. |
| APA | Qin, S,Zhao, FQ,&Tseng, CK.(2005).Evidence for positive selection in phycoerythrin genes of red algae and cyanobacteria Prochlorococcus and Synechococcus.PHOTOSYNTHETICA,43(1),141-146. |
| MLA | Qin, S,et al."Evidence for positive selection in phycoerythrin genes of red algae and cyanobacteria Prochlorococcus and Synechococcus".PHOTOSYNTHETICA 43.1(2005):141-146. |
入库方式： OAI收割
来源：海洋研究所
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