Fig. 4
From: Genetics and evidence for balancing selection of a sex-linked colour polymorphism in a songbird
Gene genealogy at the Red locus. a Illustrations of species in the genus Erythrura. From left, E. psittacea, E. trichroa, E. pealii, E. tricolor, and black and red morph of E. gouldiae (illustrations by Megan Bishop). b Maximum-likelihood tree (GTR+Γ+I) for the species in the family Estrildidae using 774-bp alignment of M1 (Fig. 1). Node support values (%) were generated from 1000 bootstrap replicates and values >80% are shown next to the branches
