A genomic comparison of 13 symbiotic Vibrio fischeri isolates from the perspective of their host source and colonization behavior.

ABSTRACT: Newly hatched Euprymna scolopes squid obtain their specific light-organ symbionts from an array of Vibrio (Allivibrio) fischeri strains present in their environment. Two genetically distinct populations of this squid species have been identified, one in Kaneohe Bay (KB), and another in Maunaloa Bay (MB), Oahu. We asked whether symbionts isolated from squid in each of these populations outcompete isolates from the other population in mixed-infection experiments. No relationship was found between a strain's host source (KB or MB) and its ability to competitively colonize KB or MB juveniles in a mixed inoculum. Instead, two colonization behaviors were identified among the 11 KB and MB strains tested: a 'dominant' outcome, in which one strain outcompetes the other for colonization, and a 'shar

SUBMITTER: Bongrand C 

PROVIDER: S-EPMC5148191 | biostudies-literature | 2016 Dec

REPOSITORIES: biostudies-literature