Divergence across diet, time and populations rules out parallel evolution in the gut microbiomes of Trinidadian guppies.

ABSTRACT: Diverse microbial consortia profoundly influence animal biology, necessitating an understanding of microbiome variation in studies of animal adaptation. Yet, little is known about such variability among fish, in spite of their importance in aquatic ecosystems. The Trinidadian guppy, Poecilia reticulata, is an intriguing candidate to test microbiome-related hypotheses on the drivers and consequences of animal adaptation, given the recent parallel origins of a similar ecotype across streams. To assess the relationships between the microbiome and host adaptation, we used 16S rRNA amplicon sequencing to characterize gut bacteria of two guppy ecotypes with known divergence in diet, life history, physiology and morphology collected from low-predation (LP) and high-predation (HP) habitats in four

SUBMITTER: Sullam KE 

PROVIDER: S-EPMC4478690 | biostudies-literature | 2015 Jul

REPOSITORIES: biostudies-literature