A general model of distant hybridization reveals the conditions for extinction in Atlantic salmon and brown trout.

ABSTRACT: Interspecific hybridization is common in nature but can be increased in frequency or even originated by human actions, such as species introduction or habitat modification, which may threaten species persistence. When hybridization occurs between distantly related species, referred to as "distant hybridization," the resulting hybrids are generally infertile or fertile but do not undergo chromosomal recombination during gametogenesis. Here, we present a model describing this frequent but poorly studied interspecific hybridization to assess its consequences on parental species and to anticipate the conditions under which they can reach extinction. Our general model fully incorporates three important processes: density-dependent competition, dominance/recessivity inheritance of traits and ass

SUBMITTER: Quilodran CS 

PROVIDER: S-EPMC4086968 | biostudies-literature | 2014

REPOSITORIES: biostudies-literature