The skin microbiome of elasmobranchs follows phylosymbiosis, but in teleost fishes, the microbiomes converge.

ABSTRACT:

Background

The vertebrate clade diverged into Chondrichthyes (sharks, rays, and chimeras) and Osteichthyes fishes (bony fishes) approximately 420 mya, with each group accumulating vast anatomical and physiological differences, including skin properties. The skin of Chondrichthyes fishes is covered in dermal denticles, whereas Osteichthyes fishes are covered in scales and are mucous rich. The divergence time among these two fish groups is hypothesized to result in predictable variation among symbionts. Here, using shotgun metagenomics, we test if patterns of diversity in the skin surface microbiome across the two fish clades match predictions made by phylosymbiosis theory. We hypothesize (1) the skin microbiome will be host and clade-specific, (2) evolutionary difference in elasmobr

SUBMITTER: Doane MP 

PROVIDER: S-EPMC7293782 | biostudies-literature | 2020 Jun

REPOSITORIES: biostudies-literature