Rapid microcystis cyanophage gene diversification revealed by long- and short-term genetic analyses of the tail sheath gene in a natural pond.

ABSTRACT: Viruses influence the abundance of host populations through virus-mediated host cell lysis. Viruses contribute to the generation and maintenance of host diversity, which also results in viral diversity throughout their coevolution. Here, to determine the phage gene diversification throughout the coevolution of host and phage in a natural environment, we investigated the genetic diversity and temporal changes in Microcystis cyanophage populations using a total of 810 sequences of the Ma-LMM01-type cyanophage tail sheath gene (g91) from 2006 to 2011 in a natural pond. The sequences obtained were highly diverse and assigned to 419 different genotypes (GT1 to GT419) clustered at 100% nucleotide sequence similarity. A maximum-parsimony network showed that the genotypes were largely divided into

SUBMITTER: Kimura S 

PROVIDER: S-EPMC3623194 | biostudies-literature | 2013 Apr

REPOSITORIES: biostudies-literature