Founder effects drive the genetic structure of passively dispersed aquatic invertebrates.

ABSTRACT: Populations of passively dispersed organisms in continental aquatic habitats typically show high levels of neutral genetic differentiation despite their high dispersal capabilities. Several evolutionary factors, including founder events, local adaptation, and life cycle features such as high population growth rates and the presence of propagule banks, have been proposed to be responsible for this paradox. Here, we have modeled the colonization process to assess the impact of migration rate, population growth rate, population size, local adaptation and life-cycle features on the population genetic structure in these organisms. Our simulations show that the strongest effect on population structure are persistent founder effects, resulting from the interaction of a few population founders, hi

SUBMITTER: Montero-Pau J 

PROVIDER: S-EPMC6294052 | biostudies-literature | 2018

REPOSITORIES: biostudies-literature