Variation of the virus-related elements within syntenic genomes of the hyperthermophilic Archaeon Aeropyrum.

ABSTRACT: The increasing number of genome sequences of archaea and bacteria show their adaptation to different environmental conditions at the genomic level. Aeropyrum spp. are aerobic and hyperthermophilic archaea. Aeropyrum camini was isolated from a deep-sea hydrothermal vent, and Aeropyrum pernix was isolated from a coastal solfataric vent. To investigate the adaptation strategy in each habitat, we compared the genomes of the two species. Shared genome features were a small genome size, a high GC content, and a large portion of orthologous genes (86 to 88%). The genomes also showed high synteny. These shared features may have been derived from the small number of mobile genetic elements and the lack of a RecBCD system, a recombinational enzyme complex. In addition, the specialized physiology (ae

SUBMITTER: Daifuku T 

PROVIDER: S-EPMC3811351 | biostudies-literature | 2013 Oct

REPOSITORIES: biostudies-literature