Complexities of gene expression patterns in natural populations of an extremophile fish (Poecilia mexicana, Poeciliidae).

ABSTRACT: Variation in gene expression can provide insights into organismal responses to environmental stress and physiological mechanisms mediating adaptation to habitats with contrasting environmental conditions. We performed an RNA-sequencing experiment to quantify gene expression patterns in fish adapted to habitats with different combinations of environmental stressors, including the presence of toxic hydrogen sulphide (H₂ S) and the absence of light in caves. We specifically asked how gene expression varies among populations living in different habitats, whether population differences were consistent among organs, and whether there is evidence for shared expression responses in populations exposed to the same stressors. We analysed organ-specific transcriptome-wide data from four ec

SUBMITTER: Passow CN 

PROVIDER: S-EPMC5731456 | biostudies-literature | 2017 Aug

REPOSITORIES: biostudies-literature