Cytoplasmic-Nuclear Incompatibility Between Wild Isolates of Caenorhabditis nouraguensis.

ABSTRACT: How species arise is a fundamental question in biology. Species can be defined as populations of interbreeding individuals that are reproductively isolated from other such populations. Therefore, understanding how reproductive barriers evolve between populations is essential for understanding the process of speciation. Hybrid incompatibility (for example, hybrid sterility or lethality) is a common and strong reproductive barrier in nature. Here we report a lethal incompatibility between two wild isolates of the nematode Caenorhabditis nouraguensis Hybrid inviability results from the incompatibility between a maternally inherited cytoplasmic factor from each strain and a recessive nuclear locus from the other. We have excluded the possibility that maternally inherited endosymbiotic b

SUBMITTER: Lamelza P 

PROVIDER: S-EPMC5345712 | biostudies-literature | 2017 Mar

REPOSITORIES: biostudies-literature