Peripheral Budding Following Range Expansion Explains Diversity and Distribution of One-Sided Livebearing Fish.

ABSTRACT: Peripheral budding occurs when populations diverge from a widespread parental population and speciate along its periphery, facilitated by the interaction of ecological and geographic barriers. This phenomenon results in species that contrast in range size and ecological tolerance and can lead to confounding phylogenies. Here we examine patterns of peripheral budding in the Jenynsia lineata species complex using a genomic approach. The J. lineata species complex is a group of live-bearing fish in South America that shows signals of peripheral budding through asymmetric range sizes, J. lineata being widespread, and with a confounding and unresolved phylogeny. Our goal was to adequately classify the J. lineata species complex, delimit species within the complex, and identify signals of introg

SUBMITTER: Berg R 

PROVIDER: S-EPMC12329629 | biostudies-literature | 2025 Aug

REPOSITORIES: biostudies-literature