Adaptation and drift in the deep sea - investigating the evolution of diversity in a 'uniform' environment

Allele Freq

In this study we are employing second generation sequencing technologies to investigate how environmental factors influence evolution in the deep-sea.

There are three main goals of our work.

  • Population genomics study of the two focal species Coryphaenoides rupestris and C. brevibarbis - These two species have similar geographic ranges but the former is found at shallower depths than the latter. We are employing 1000's of molecular markers to test hypotheses about how depth, and other factors such as ocean currents, influence evolution within the group.
  • Phylogenetic analysis of the genus Corphaenoides - Using phylogenetic analyses we are studying the evolutionary history of this group of diverse fishes. We are using both neutral loci and makers under selection to understand how environmental factors and adaptation contribute to lineage diversification across the genus.
  • Whole genome sequencing of focal species - Here we aim to identify parts of the genome that made adaption to abyssal depths possible.