Project Description

Project Context :

Stenothermic species are strongly affected by rising temperatures. Climate change exerts significant selective pressures, to which species respond through phenotypic plasticity and/or genetic evolution. Long-term survival depends on natural selection, which can only occur in the presence of genetic diversity, essential for the maintenance of populations and ecological interactions. This study will focus on the genetic variability of Arctic char (Salvelinus umbla) from high-altitude lakes with contrasting thermal conditions.

Project Objectives :

The objective is to identify genes responding to natural selection among several lakes (N = 8) with contrasting thermal conditions. To achieve this, we will use an approach based on SNP markers, allowing the distinction between neutral regions of the genome (not under selection) and others where selection is strong.

Project Results

Identifying genome region potentially under thermal selection.

To go further

Contact : allan.raffard@inrae.fr