Ecological differences among hydrothermal vent symbioses may drive contrasting patterns of symbiont population differentiation.

ABSTRACT: The intra-host composition of horizontally transmitted microbial symbionts can vary across host populations due to interactive effects of host genetics, environmental, and geographic factors. While adaptation to local habitat conditions can drive geographic subdivision of symbiont strains, it is unknown how differences in ecological characteristics among host-symbiont associations influence the genomic structure of symbiont populations. To address this question, we sequenced metagenomes of different populations of the deep-sea mussel Bathymodiolus septemdierum, which are common at Western Pacific deep-sea hydrothermal vents and show characteristic patterns of niche partitioning with sympatric gastropod symbioses. Bathymodiolus septemdierum lives in close symbiotic relationshi

SUBMITTER: Breusing C 

PROVIDER: S-EPMC10469979 | biostudies-literature | 2023 Aug

REPOSITORIES: biostudies-literature