Aliivibrio fischeri EM17 Genome sequencing and assembly. Aliivibrio fischeri EM17

Environmentally-transmitted symbiotic bacteria must often balance the selective pressures of host specificity and abiotic fluctuations from their surroundings. Here, we investigate the genetic basis of phenotypic adaptation to these challenges via comparative genomics. Genomes of four strains of Vibrio fischeri isolated from four different squid species living in varying temperature and salinity environments as well as one free-living Vibrio were sequenced. These sequences were compared to others from symbiotic and free-living vibrios for gene orthology, functional subsystem, selection, and phylogenetic analyses.