Abstract
How are color polymorphisms maintained within populations? De Pasqual et al. (2022) showed that female wood tiger moths (Arctia plantaginis) that were heterozygous for a wing color gene had higher fertility, hatching success, and offspring survival. These findings suggest that the complex interaction between heterozygote advantage and pleiotropic effects maintains color variability through a balance between multiple and competing selective pressures in wild populations.
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