Data from: Introgression between non-sister species of honeyeaters (Aves: Meliphagidae) several million years after speciation
Joseph, Leo; Drew, Alex; Mason, Ian J.; Peters, Jeffrey L. (2019), Data from: Introgression between non-sister species of honeyeaters (Aves: Meliphagidae) several million years after speciation, Dryad, Dataset, https://doi.org/10.5061/dryad.rg3587h
We reassessed whether two parapatric non-sister Australian honeyeater species (Aves: Meliphagidae), varied and mangrove honeyeaters (Gavicalis versicolor and G. fasciogularis, respectively), that diverged from a common ancestor c. 2.5 Mya intergrade in the Townsville area of north-eastern Queensland. Consistent with a previous specimenbased study, by using genomics methods we show one-way gene flow for autosomal but not Z-linked markers from varied into mangrove honeyeaters. Introgression barely extends south of the area of parapatry in and around the city of Townsville. While demonstrating the long-term porosity of species boundaries over several million years, our data also suggest a clear role of sex chromosomes in maintaining reproductive isolation.