Hybrid speciation driven by multilocus introgression of ecological traits

Nature, Published online: 17 April 2024; doi:10.1038/s41586-024-07263-w

Genomic studies of Heliconius butterflies provide evidence that Heliconius elevatus is a hybrid species, and that its speciation was driven by introgression of traits from Heliconius melpomene into the other parent, an ancestor of Heliconius pardalinus.