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Mol Phylogenet Evol. 2008 Dec;49(3):749-59. doi: 10.1016/j.ympev.2008.09.015. Epub 2008 Oct 1.

Phylogenetics and biogeography of the broad-nosed bats, genus Platyrrhinus (Chiroptera: Phyllostomidae).

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  • 1Department of Zoology, Field Museum of Natural History, 1400 S. Lake Shore Drive, Chicago, IL 60605, USA. pvelazco@fieldmuseum.org

Abstract

The Neotropical broad-nosed bats, genus Platyrrhinus, represent a well-defined monophyletic group of 14 recognized species. A recent study of morphological characters confirmed Platyrrhinus monophyly and species diagnosis, but offered little support to their intra-specific relationships. We conducted phylogenetic analyses of the genus, using dense taxonomic sampling in combination with four gene sequences representing both mitochondrial and nuclear DNA transmission systems. Our aim was to elucidate the phylogenetic structure among species, using the resulting 3341 bp of DNA. Maximum parsimony, maximum likelihood, and Bayesian inference analyses produced similar topologies that confirm the monophyly of the genus Platyrrhinus and strongly support many previously unrecognized groups. Paraphyly of Platyrrhinus helleri and the unclear position of P. brachycephalus in the clades were also apparent in the data. Our biogeographical analysis suggests a Brazilian Shield origin for Platyrrhinus, followed by subsequent radiations of lineages in the Amazon Basin and Andes. Secondary dispersal from Amazonian and Andean centers is responsible for the Platyrrhinus inhabiting the Guianan Shield and the Pacific lowlands and Central America, respectively.

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