Less can be more: loss of MHC functional diversity can reflect adaptation to novel conditions during fish invasions.

ABSTRACT: The ability of invasive species to adapt to novel conditions depends on population size and environmental mismatch, but also on genetic variation. Away from their native range, invasive species confronted with novel selective pressures may display different levels of neutral versus functional genetic variation. However, the majority of invasion studies have only examined genetic variation at neutral markers, which may reveal little about how invaders adapt to novel environments. Salmonids are good model systems to examine adaptation to novel pressures because they have been translocated all over the world and represent major threats to freshwater biodiversity in the Southern Hemisphere, where they have become invasive. We examined patterns of genetic differentiation at seven putatively neu

SUBMITTER: Monzon-Arguello C 

PROVIDER: S-EPMC3797483 | biostudies-literature | 2013 Sep

REPOSITORIES: biostudies-literature