Molecular phylogeny of Old World swifts (Aves: Apodiformes, Apodidae, Apus and Tachymarptis) based on mitochondrial and nuclear markers

Molecular Phylogenetics and Evolution
Martin PäckertDieter Thomas Tietze

Abstract

We provide a molecular phylogeny for Old World swifts of genera Apus and Tachymarptis (tribe Apodini) based on a taxon-complete sampling at the species level. Phylogenetic reconstructions were based on two mitochondrial (cytochrome b, 12S rRNA) and three nuclear markers (introns of fibrinogen and glyceraldehyde 3-phosphate dehydrogenase plus anonymous marker 12884) while the myoglobin intron 2 did not show any intergeneric variation or phylogenetic signal among the target taxa at all. In contrast to previous hypotheses, the two genera Apus and Tachymarptis were shown as reciprocally monophyletic in all reconstructions. Apus was consistently divided into three major clades: (1) East Asian clade of A. pacificus and A. acuticauda, (2) African-Asian clade of A. caffer, A. batesi, A. horus, A. affinis and A. nipalensis, (3) African-Palearctic clade of eight currently accepted species among which sequences of A. apus and A. pallidus clustered in a terminal crown clade. Phylogenetic signal of all four nuclear markers was extremely shallow within and among species of tribe Apodini and even among genera, such that intra- and intergeneric relationships of Apus, Tachymarptis and Cypsiurus were poorly resolved by nuclear data alone. Four s...Continue Reading

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