Posted by: Anna Runemark
For the upcoming
labmeeting we will discuss the recent Nature-paper The genomic landscape of species divergence in Ficedula flycatchers
(found here) where Ellegren et al.
have studied the distribution of differentiated regions across the genome. I
hope that the paper will stimulate discussions both on the genomics of
speciation as well as on to which extent studying differences between diverged
species is informative of speciation versus of differences that accumulate
following speciation.
Since this paper
is a quite short read I will also send out one of Lesley’s manuscripts which
she is about to submit as voluntary extra reading. The paper is testing
for assortative and disassortative mating preferences in the color
polymorphic side blotched lizards (Uta
stansburiana). This is interesting as conflicting sources of selection
on polymorphic individuals are expected in this system: negative frequency
dependent selection (females should mate disassortatively with rare males
to maximize fitness) and correlational selection (females should
mate assortatively to preserve co-adapted gene complexes). I will send out the manuscript to the labmembers tonight.
I will bring
fika!
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