Genome-wide species delimitation analyses of a silverside fish species complex in central Mexico indicate taxonomic over-splitting.

ABSTRACT:

Background

Delimiting species across a speciation continuum is a complex task, as the process of species origin is not generally instantaneous. The use of genome-wide data provides unprecedented resolution to address convoluted species delimitation cases, often unraveling cryptic diversity. However, because genome-wide approaches based on the multispecies coalescent model are known to confound population structure with species boundaries, often resulting in taxonomic over-splitting, it has become increasingly evident that species delimitation research must consider multiple lines of evidence. In this study, we used phylogenomic, population genomic, and coalescent-based species delimitation approaches, and examined those in light of morphological and ecological information, to inves

SUBMITTER: Pineros VJ 

PROVIDER: S-EPMC9472351 | biostudies-literature | 2022 Sep

REPOSITORIES: biostudies-literature