Sequence analysis of the Microcystis aeruginosa FACHB-912 phytochrome gene supports positive selection in cyanobacteria

作     者：SHI Fei LI Nan LIU ShaoFang QIN Song 

作者机构：Yantai Institute of Coastal Zone ResearchChinese Academy of SciencesYantai 264003China Marine Biotechnology Research CenterKorean Ocean Research&Development InstituteAnsan 425600Republic of Korea Graduate University of Chinese Academy of SciencesBeijing 100049China Institute of OceanologyChinese Academy of SciencesQingdao 266071China 

出 版 物：《Chinese Science Bulletin》 (Chinese Science Bulletin)

年 卷 期：2012年第57卷第25期

页      面：3270-3276页

核心收录：

学科分类：0710[理学-生物学] 07[理学] 09[农学] 071007[理学-遗传学] 0901[农学-作物学] 090102[农学-作物遗传育种] 

基　　金：supported by the CAS/SAFEA International Partnership Program for Creative Research Teams and a Project of the Chinese Marine Microbial Center (KSCX2-YW-G-073) 

主　　题：光敏色素 色素基因 铜绿微囊藻 蓝藻水华 正选择 序列分析 GenBank 组氨酸激酶 

摘      要：The phytochrome gene from Microcystis aeruginosa FACHB-912,isolated from algal blooms in Taihu Lake in China,was sequenced and found to code for a wavelength transition light receptor *** gene was composed of five distinct domains:a PAS fold domain,a GAF domain,a phytochrome domain,a His Kinase A(phosphoacceptor) domain,and a histidine kinase ***-absorbing phytochrome,far-red-absorbing phytochrome,and photoconversion kinetics were monitored via the spectral characteristics of the *** detect positive selection,homologous sequences from cyanobacterium phytochrome genes were obtained from *** selective pressure was identified by phylogenetic analysis with maximum likelihood *** frequency of the phytochrome gene being subjected to selective constraints suggests that positive selection is a potentially important mechanism that promotes the evolution of the cyanobacteria phytochrome *** sites identified in this study provide targets for further research on the structural-functional role of these residues,and on the correlation with the mechanism of algal blooms.