Our paper on genomic outcomes of recent versus ancient hybridization in Lycaeides butterflies is now out at Nature Communications. Check it out here.

In this paper, we show that ancient admixed butterfly populations have mosaic genomes with ancestry segments that can be predicted (to a reasonable extent) from how natural selection (and recombination) affect the genomes of contemporary hybrids. Thus, our results suggest that natural selection and recombination can affect hybrid genomes in similar ways across disparate time scales and during distinct stages of the origin and collapse of species.