Differences among families in craniofacial shape at early life-stages of Arctic charr (Salvelinus alpinus).

ABSTRACT:

Background

Organismal fitness can be determined at early life-stages, but phenotypic variation at early life-stages is rarely considered in studies on evolutionary diversification. The trophic apparatus has been shown to contribute to sympatric resource-mediated divergence in several taxa. However, processes underlying diversification in trophic traits are poorly understood. Using phenotypically variable Icelandic Arctic charr (Salvelinus alpinus), we reared offspring from multiple families under standardized laboratory conditions and tested to what extent family (i.e. direct genetic and maternal effects) contributes to offspring morphology at hatching (H) and first feeding (FF). To understand the underlying mechanisms behind early life-stage variation in morphology, we examined ho

SUBMITTER: Beck SV 

PROVIDER: S-EPMC7586659 | biostudies-literature | 2020 Oct

REPOSITORIES: biostudies-literature