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Phylogeography, species limits, phylogeny, and classification of the turacos (Aves, Musophagidae) based on mitochondrial and nuclear DNA sequences. (American Museum novitates, no. 3949)

Show simple item record Perktaş, Utku. Groth, Jeffrey G. Barrowclough, George F. 2020-04-03T15:44:32Z 2020-04-03T15:44:32Z 2020-04-03
dc.description 61 pages : illustrations (some color), color maps ; 26 cm. en_US
dc.description.abstract We used mitochondrial and nuclear DNA sequences to examine patterns of differentiation and evolution in the Musophagidae, an avian family endemic to sub-Saharan Africa; attention was focused on the subfamily Musophaginae, the turacos, or louries. Phylogeographic analysis of 410 individual ND2 sequences from throughout the ranges of the currently recognized species revealed multiple instances of unexpectedly large genetic divergences and cryptic taxa. Within both montane and lowland species, including Tauraco hartlaubi and T. schalowi, Menelikornis leucotis, Musophaga macrorhyncha, and Gallirex johnstoni, fixed private haplotypes were found in disjunct portions of the ranges, suggesting negligible recent gene flow and evolutionary independence of populations. Two taxa originally described as subspecies (T. schalowi loitanus and T. s. marungensis), but not recognized for over 50 years, were found to be 100% diagnosable based on the mitochondrial sequences. The data also revealed the existence of two polyphyletic traditional species, Tauraco livingstonii and T. schuettii, as well as the polyphyly or paraphyly of all traditional superspecies complexes involving members of the genus Tauraco. Overall, our analyses of genetic and morphological variation revealed substantial and unexpected geographic diversity within the Musophagidae. We recognize 33 species-level taxa that represent the appropriate units for phylogenetic and biogeographic analyses (phylogenetic species). We used complete mitochondrial ND2 sequences and nuclear DNA sequences of an Aconitase intron and of the RAG-1 exon to infer the phylogenetic relationships among those species. The results include all the phylogenetic species and, for the first time, nuclear data. We present a new classification of the Musophagidae based on our phylogeographic and phylogenetic results. We allocate the 33 species to seven previously recognized genera, an average of 4.7 species per genus. en_US
dc.language.iso en_US en_US
dc.publisher American Museum of Natural History. en_US
dc.relation.ispartofseries American Museum novitates;no.3949.
dc.subject Musophaginae -- Classification -- Molecular aspects. en_US
dc.subject Musophagidae -- Classification -- Molecular aspects. en_US
dc.subject Phylogeography. en_US
dc.subject Nucleotide sequence. en_US
dc.subject Mitochondrial DNA. en_US
dc.subject Africa, Sub-Saharan. en_US
dc.title Phylogeography, species limits, phylogeny, and classification of the turacos (Aves, Musophagidae) based on mitochondrial and nuclear DNA sequences. (American Museum novitates, no. 3949) en_US
dc.title.alternative Phylogeny of the turacos. en_US

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  • American Museum Novitates
    Novitates (Latin for "new acquaintances"), published continuously and numbered consecutively since 1921, are short papers that contain descriptions of new forms and reports in zoology, paleontology, and geology. New numbers are published at irregular intervals.

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