Journal
MOLECULAR PHYLOGENETICS AND EVOLUTION
Volume 67, Issue 2, Pages 484-493Publisher
ACADEMIC PRESS INC ELSEVIER SCIENCE
DOI: 10.1016/j.ympev.2013.02.015
Keywords
Supermatrix; Partitioned analysis; Bayesian inference; Maximum likelihood; Maximum parsimony; Random-outgroup rooting
Funding
- UK Natural Environment Research Council (NERC) [PFAG/027 Task 2]
- Cambridge European Trust
- Balfour Fund of the Department of Zoology in Cambridge
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Antilopini (gazelles and their allies) are one of the most diverse but phylogenetically controversial groups of bovids. Here we provide a molecular phylogeny of this poorly understood taxon using combined analyses of mitochondria] (CYTB, COIII, 12S, 16S) and nuclear (KCAS, SPTBN1, PRKCI, MC1R, THYR ) genes. We explore the influence of data partitioning and different analytical methods, including Bayesian inference, maximum likelihood and maximum parsimony, on the inferred relationships within Antilopini. We achieve increased resolution and support compared to previous analyses especially in the two most problematic parts of their tree. First, taxa commonly referred to as gazelles are recovered as paraphyletic, as the genus Gazella appears more closely related to the Indian blackbuck (Antilope cervicapra) than to the other two gazelle genera (Nanger and Eudorcas). Second, we recovered a strongly supported sister relationship between one of the dwarf antelopes (Ourebia) and the Antilopini subgroup Antilopina (Saiga, Gerenuk, Springbok, Blackbuck and gazelles). The assessment of the influence of taxon sampling, out-group rooting, and data partitioning in Bayesian analyses helps explain the contradictory results of previous studies. (C) 2013 Elsevier Inc. All rights reserved.
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