Differential gene expression during early development in recently evolved and sympatric Arctic charr morphs.

ABSTRACT: Phenotypic differences between closely related taxa or populations can arise through genetic variation or be environmentally induced, leading to altered transcription of genes during development. Comparative developmental studies of closely related species or variable populations within species can help to elucidate the molecular mechanisms related to evolutionary divergence and speciation. Studies of Arctic charr (Salvelinus alpinus) and related salmonids have revealed considerable phenotypic variation among populations and in Arctic charr many cases of extensive variation within lakes (resource polymorphism) have been recorded. One example is the four Arctic charr morphs in the ∼10,000 year old Lake Thingvallavatn, which differ in numerous morphological and life history traits. We

SUBMITTER: Guðbrandsson J 

PROVIDER: S-EPMC5807978 | biostudies-literature | 2018

REPOSITORIES: biostudies-literature