Population genomics of highly fecund codfish


Bjarki Eldon, Postdoc in STE 325/17-1
in cooperation with Jere Koskela and Maite Wilke Berenguer (SPP1590)

 

Some natural populations, such as Atlantic cod and Pacific oysters, are highly fecund and can be characterised by Type III survivorship curves and sweepstakes reproduction. The gene genealogies of samples taken from such populations are shallow and exhibit multiple mergers of ancestral lineages. Coalescent processes derived from population models which admit high fecundity and sweepstakes reproduction (HFSR) allow multiple mergers.

We aim to analyse multi-locus genetic data from highly fecund codfish with multiple-merger coalescent models in order to determine if we can find a genomic signature of HFSR. Structured multi-loci multiple-merger coalescent models will also be applied to investigate population structure in codfish.

Publications