Mobile elements in a single-filament orange Guaymas Basin Beggiatoa ("Candidatus Maribeggiatoa") sp. draft genome: evidence for genetic exchange with cyanobacteria.

ABSTRACT: The draft genome sequence of a single orange Beggiatoa ("Candidatus Maribeggiatoa") filament collected from a microbial mat at a hydrothermal site in Guaymas Basin (Gulf of California, Mexico) shows evidence of extensive genetic exchange with cyanobacteria, in particular for sensory and signal transduction genes. A putative homing endonuclease gene and group I intron within the 23S rRNA gene; several group II catalytic introns; GyrB and DnaE inteins, also encoding homing endonucleases; multiple copies of sequences similar to the fdxN excision elements XisH and XisI (required for heterocyst differentiation in some cyanobacteria); and multiple sequences related to an open reading frame (ORF) (00024_0693) of unknown function all have close non-Beggiatoaceae matches with cyanobacterial sequenc

SUBMITTER: MacGregor BJ 

PROVIDER: S-EPMC3697557 | biostudies-literature | 2013 Jul

REPOSITORIES: biostudies-literature