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Working at the interface of phylogenetics and population genetics: a biogeographical analysis of Triaenops spp. (Chiroptera: Hipposideridae).

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Date
2007-02
Authors
Russell, AL
Ranivo, J
Palkovacs, EP
Goodman, SM
Yoder, AD
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Abstract
New applications of genetic data to questions of historical biogeography have revolutionized our understanding of how organisms have come to occupy their present distributions. Phylogenetic methods in combination with divergence time estimation can reveal biogeographical centres of origin, differentiate between hypotheses of vicariance and dispersal, and reveal the directionality of dispersal events. Despite their power, however, phylogenetic methods can sometimes yield patterns that are compatible with multiple, equally well-supported biogeographical hypotheses. In such cases, additional approaches must be integrated to differentiate among conflicting dispersal hypotheses. Here, we use a synthetic approach that draws upon the analytical strengths of coalescent and population genetic methods to augment phylogenetic analyses in order to assess the biogeographical history of Madagascar's Triaenops bats (Chiroptera: Hipposideridae). Phylogenetic analyses of mitochondrial DNA sequence data for Malagasy and east African Triaenops reveal a pattern that equally supports two competing hypotheses. While the phylogeny cannot determine whether Africa or Madagascar was the centre of origin for the species investigated, it serves as the essential backbone for the application of coalescent and population genetic methods. From the application of these methods, we conclude that a hypothesis of two independent but unidirectional dispersal events from Africa to Madagascar is best supported by the data.
Type
Journal article
Subject
Animals
Base Sequence
Bayes Theorem
Chiroptera
DNA Primers
Demography
Evolution, Molecular
Genetics, Population
Geography
Madagascar
Models, Genetic
Molecular Sequence Data
Phylogeny
Population Dynamics
Sequence Analysis, DNA
Permalink
https://hdl.handle.net/10161/6942
Published Version (Please cite this version)
10.1111/j.1365-294X.2007.03192.x
Publication Info
Russell, AL; Ranivo, J; Palkovacs, EP; Goodman, SM; & Yoder, AD (2007). Working at the interface of phylogenetics and population genetics: a biogeographical analysis of Triaenops spp. (Chiroptera: Hipposideridae). Mol Ecol, 16(4). pp. 839-851. 10.1111/j.1365-294X.2007.03192.x. Retrieved from https://hdl.handle.net/10161/6942.
This is constructed from limited available data and may be imprecise. To cite this article, please review & use the official citation provided by the journal.
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Scholars@Duke

Yoder

Anne Daphne Yoder

Braxton Craven Distinguished Professor of Evolutionary Biology
My work integrates field inventory activities with molecular phylogenetic techniques and geospatial analysis to investigate Madagascar, an area of the world that is biologically complex, poorly understood, and urgently threatened. Madagascar has been designated as one of the most critical geographic priorities for conservation action, retaining less than 10% of the natural habitats that existed before human colonization. It is critical that information be obtained as quickly as possible to docum
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