Extensive secondary contact among three glacial lineages of Arctic Char (Salvelinus alpinus) in Labrador and Newfoundland.

ABSTRACT:

Aim

The Pleistocene glaciation event prompted the allopatric divergence of multiple glacial lineages of Arctic char (Salvelinus alpinus), some of which have come into secondary contact upon their recolonization of the Holarctic. While three glacial lineages (Arctic, Atlantic, and Acadian) are known to have recolonized the western Atlantic, the degree of overlap of these three lineages is largely unknown. We sought to determine the distribution of these three glacial lineages in Labrador and Newfoundland at a fine spatial scale to assess their potential for introgression and their relative contribution to local fisheries.

Location

Labrador and Newfoundland, Canada.

Methods

We sequenced a portion of the D-loop region in over 1,000 Arctic char (S. alpinus)

SUBMITTER: Salisbury SJ 

PROVIDER: S-EPMC6392391 | biostudies-literature | 2019 Feb

REPOSITORIES: biostudies-literature