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Publication Details
AFRICAN RESEARCH NEXUS
SHINING A SPOTLIGHT ON AFRICAN RESEARCH
agricultural and biological sciences
A hybrid phylogenetic-phylogenomic approach for species tree estimation in african agama lizards with applications to biogeography, character evolution, and diversification
Molecular Phylogenetics and Evolution, Volume 79, No. 1, Year 2014
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Description
Africa is renowned for its biodiversity and endemicity, yet little is known about the factors shaping them across the continent. African Agama lizards (45 species) have a pan-continental distribution, making them an ideal model for investigating biogeography. Many species have evolved conspicuous sexually dimorphic traits, including extravagant breeding coloration in adult males, large adult male body sizes, and variability in social systems among colorful versus drab species. We present a comprehensive time-calibrated species tree for Agama, and their close relatives, using a hybrid phylogenetic-phylogenomic approach that combines traditional Sanger sequence data from five loci for 57 species (146 samples) with anchored phylogenomic data from 215 nuclear genes for 23 species. The Sanger data are analyzed using coalescent-based species tree inference using *BEAST, and the resulting posterior distribution of species trees is attenuated using the phylogenomic tree as a backbone constraint. The result is a time-calibrated species tree for Agama that includes 95% of all species, multiple samples for most species, strong support for the major clades, and strong support for most of the initial divergence events. Diversification within Agama began approximately 23 million years ago (Ma), and separate radiations in Southern, East, West, and Northern Africa have been diversifying for >10Myr. A suite of traits (morphological, coloration, and sociality) are tightly correlated and show a strong signal of high morphological disparity within clades, whereby the subsequent evolution of convergent phenotypes has accompanied diversification into new biogeographic areas. © 2014 Elsevier Inc.
Authors & Co-Authors
Leaché, Adam D.
United States, Seattle
University of Washington
Wagner, Philipp
Germany, Bonn
Zoologisches Forschungsmuseum Alexander Koenig
United States, Villanova
Villanova University
Linkem, Charles W.
United States, Seattle
University of Washington
Böhme, Wolfgang
Germany, Bonn
Zoologisches Forschungsmuseum Alexander Koenig
Papenfuss, Theodore J.
United States, Berkeley
University of California, Berkeley
Chong, Rebecca A.
United States, Fort Collins
Colorado State University
Lavin, Brian R.
United States, Rohnert Park
Sonoma State University
Bauer, Aaron Matthew
United States, Villanova
Villanova University
Nielsen, Stuart V.
United States, University
University of Mississippi
Greenbaum, Eli
United States, El Paso
The University of Texas at el Paso
Rödel, Mark Oliver
Germany, Berlin
Museum Für Naturkunde
Schmitz, Andreas
Switzerland, Geneva
Natural History Museum of Geneva
LeBreton, Matthew
France, Paris
Museum National D'histoire Naturelle
Ineich, Ivan
France, Paris
Museum National D'histoire Naturelle
Chirio, Laurent
France, Paris
Museum National D'histoire Naturelle
Ofori-Boateng, Caleb
Ghana, Kumasi
Csir - Forestry Research Institute of Ghana
Eniang, Edem Archibong
Nigeria, Uyo
University of Uyo
Baha El Din, Sherif M.
Egypt, Cairo
Nature Conservation Sector
Lemmon, Alan R.
United States, Tallahassee
Florida State University
Burbrink, Frank Thomas
United States, New York
College of Staten Island
Statistics
Citations: 84
Authors: 20
Affiliations: 16
Identifiers
Doi:
10.1016/j.ympev.2014.06.013
ISSN:
10557903
e-ISSN:
10959513
Research Areas
Cancer
Participants Gender
Male