Molecular phylogenetic analysis of Fringillidae, "New World nine-primaried oscines" (Aves: Passeriformes)

Abstract

Systematic studies of Fringillidae have long been problematic due to their apparent recent and explosive diversification. We present phylogenetic hypotheses of 44 fringillids that represent the overall diversity of the family, based on 3.2 kb of mitochondrial DNA sequences, and phylogenetic analyses for a subset of fringillids based on new and published mitochondrial cytochrome b sequences. Monophyly of Fringillidae and its two constituent subfamilies, Fringillinae and Emberizinae, was consistently supported with the exceptions of Peucedramus being placed outside of Fringillinae and Euphonia being placed within Fringillinae instead of within Emberizinae. Within Emberizinae, Thraupini (tanagers), Cardinalini (cardinals and grosbeaks), and Emberizini (New World sparrows) did not form separate monophyletic groups. Our results indicate that Emberizinae consists of three clades, each with a different overall geographical distribution. Several taxa traditionally considered members of Thraupini fall outside of the thraupine clade, including the only North American genus, Piranga. Consequently, the thraupine clade includes only Neotropical species. Increasing evidence suggests that Fringillidae, often called "New World nine-primaried oscines," does not in fact have a New World origin.