Líf- og umhverfisvísindastofnun

Population genomics of highly fecund codfish

Dagsetning: 
Föstudagur, February 9, 2018 -
12:30 to 13:10
Nánari staðsetning: 
N - 131
Einar Árnason, professor in Evolutionary Biology at the Faculty of Life and Environmental Sciences, 
will give a presentation in the Biology Seminar:  

I will discuss one of the main questions in our recently awarded grant of excellence project on 
population genomics of highly fecund codfish.

Highly fecund organisms can afford high selective mortality in their struggle for existence. Fecundity, 
the Darwinian struggle for existence, and the intensity of natural selection are therefore strongly connected. 
Organisms characterised by high fecundity and sweepstakes reproduction (HFSR) provide an important contrast to 
the low-fecundity model organisms commonly used in investigations of natural selection, adaptation, and
speciation. We hypothesize that highly fecund codfish reproduce by sweepstakes. We use methods of population 
genetics and genomics and molecular genomics to approach these questions. I will discuss and contrast population 
genetic models of HFSR and non-HFSR and of appropriate coalescent models with or without population growth.

 

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