Complete genome sequence of Halomonas ventosae virulent halovirus QHHSV-1

作者：Fu, Chaoqun; Zhao, Qin; Li, Zhiying; Wang, Yongxia; Zhang, Shiying; Lai, Yonghong; Xiao, Wei^*; Cui, Xiaolong^*

来源：Archives of Virology, 2017, 162(10): 3215-3219.

DOI：10.1007/s00705-017-3415-0

• RECOMBINATION-DEPENDENT GROWTH
• TAIL LENGTH DETERMINATION
• ESCHERICHIA-COLI K-12
• SOUTHWEST CHINA
• SALT MINE
• SP-NOV.
• BACTERIOPHAGE
• GENES
• ENVIRONMENTS
• VIRUSES

A virulent halovirus QHHSV-1 which lyses Halomonas ventosae QH52-2 originating from the Qiaohou salt mine in Yunnan, Southwest China was characterized. The complete genome of QHHSV-1 is composed of a circular double-stranded DNA of 37,270 base pairs in length, with 66.8% G+C content and 69 putative open reading frames (ORFs), which were classified into five functional groups, including morphogenesis, replication/regulation, packaging, lysis and lysogeny. A putative Cro repressor gene and an integrase gene were found in the genome, showing that QHHSV-1 may utilize a lambda-like repression system under unfavorable conditions. QHHSV-1 is the first report of the whole genome sequence of the virulent Halomonas phage belonging to the family Siphoviridae.

• 出版日期2017-10
• 单位云南农业大学; 云南大学