The developmental transcriptome of contrasting Arctic charr ( Salvelinus alpinus) morphs.

ABSTRACT: Species and populations with parallel evolution of specific traits can help illuminate how predictable adaptations and divergence are at the molecular and developmental level. Following the last glacial period, dwarfism and specialized bottom feeding morphology evolved rapidly in several landlocked Arctic charr Salvelinus alpinus populations in Iceland.   To study the genetic divergence between small benthic morphs and limnetic morphs, we conducted RNA-sequencing charr embryos at four stages in early development. We studied two stocks with contrasting morphologies: the small benthic (SB) charr from Lake Thingvallavatn and Holar aquaculture (AC) charr. The data reveal significant differences in expression of several biological pathways during charr development. There was also an expr

SUBMITTER: Gudbrandsson J 

PROVIDER: S-EPMC5007756 | biostudies-literature | 2015

REPOSITORIES: biostudies-literature