Astyanax mexicanus surface and cavefish chromosome-scale assemblies for trait variation discovery.

ABSTRACT: The ability of organisms to adapt to sudden extreme environmental changes produces some of the most drastic examples of rapid phenotypic evolution. The Mexican Tetra, Astyanax mexicanus, is abundant in the surface waters of northeastern Mexico, but repeated colonizations of cave environments have resulted in the independent evolution of troglomorphic phenotypes in several populations. Here, we present three chromosome-scale assemblies of this species, for one surface and two cave populations, enabling the first whole-genome comparisons between independently evolved cave populations to evaluate the genetic basis for the evolution of adaptation to the cave environment. Our assemblies represent the highest quality of sequence completeness with predicted protein-coding and noncoding gene metri

SUBMITTER: Warren WC 

PROVIDER: S-EPMC11304944 | biostudies-literature | 2024 Aug

REPOSITORIES: biostudies-literature