Host evolution shapes gut microbiome composition in Astyanax mexicanus.

ABSTRACT: The ecological and genetic changes that underlie the evolution of host-microbe interactions remain elusive, primarily due to challenges in disentangling the variables that alter microbiome composition. To understand the impact of host habitat, host genetics, and evolutionary history on microbial community structure, we examined gut microbiomes of river- and three cave-adapted morphotypes of the Mexican tetra, Astyanax mexicanus, in their natural environments and under controlled laboratory conditions. Field-collected samples were dominated by very few taxa and showed considerable interindividual variation. We found that lab-reared fish exhibited increased microbiome richness and distinct composition compared to their wild counterparts, underscoring the significant influence of habit

SUBMITTER: Riddle MR 

PROVIDER: S-EPMC10985381 | biostudies-literature | 2024 Apr

REPOSITORIES: biostudies-literature