Purifying and balancing selection on embryonic semi-lethal haplotypes in a wild mammal.
M. A. Stoffel, S. E. Johnston, J. Pilkington, J. M. Pemberton
The paper identifies three semi-lethal haplotypes in Soay sheep, showing two are under purifying selection while one is maintained by balancing selection due to increased postnatal survival.
bioRxiv · Dec 2, 2022Evolutionary Biology