We used 1400 bp of mitochondrial DNA sequence from two gene fragments (ND4 and cyt-b) to investigate phylogenetic relationships within Atropoides, with emphasis on the subspecies of A. nummifer. Although many relationships within the genus are strongly supported, monophyly of Atropoides was never supported, although it could not be rejected with statistical confidence. In most analyses, the genus was paraphyletic with respect to Porthidium and Cerrophidion, due to the problematic placement of A. picadoi. Our results suggest that the current taxonomy may underestimate species diversity within this group. Atropoides nummifer was found to comprise three distinct phylogroups, generally coinciding with the current subspecies recognized under A. nummifer but paraphyletic with respect to A. olmec. Additionally, disjunct populations previously thought to represent A. nummifer in Oaxaca, Mexico, and Baja Verapaz, Guatemala, appear to represent A. olmec. We use the phylogeny recovered for A. nummifer and A. olmec to discuss geological and climatic events that may historically have affected gene flow within this complex.
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September 2003
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September 01 2003
MOLECULAR SYSTEMATICS OF THE MIDDLE AMERICAN JUMPING PITVIPERS (GENUS ATROPOIDES) AND PHYLOGEOGRAPHY OF THE ATROPOIDES NUMMIFER COMPLEX Available to Purchase
Todd A. Castoe;
Todd A. Castoe
aDepartment of Biology, University of Texas at Arlington, Box 19498, Arlington, TX 76019, USA
Present Address: Department of Biology, University of Central Florida, 4000 Central Florida Boulevard, Orlando, FL 32816-2368, USA
Correspondence: [email protected]
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Paul T. Chippindale;
Paul T. Chippindale
aDepartment of Biology, University of Texas at Arlington, Box 19498, Arlington, TX 76019, USA
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Jonathan A. Campbell;
Jonathan A. Campbell
aDepartment of Biology, University of Texas at Arlington, Box 19498, Arlington, TX 76019, USA
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Loren K. Ammerman;
Loren K. Ammerman
aDepartment of Biology, University of Texas at Arlington, Box 19498, Arlington, TX 76019, USA
Present Address: Department of Biology, Angelo State University, San Angelo, TX 76909, USA
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Christopher L. Parkinson
Christopher L. Parkinson
bDepartment of Biology, University of Central Florida, 4000 Central Florida Boulevard, Orlando, FL 32816-2368, USA
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Herpetologica (2003) 59 (3): 420–431.
Citation
Todd A. Castoe, Paul T. Chippindale, Jonathan A. Campbell, Loren K. Ammerman, Christopher L. Parkinson; MOLECULAR SYSTEMATICS OF THE MIDDLE AMERICAN JUMPING PITVIPERS (GENUS ATROPOIDES) AND PHYLOGEOGRAPHY OF THE ATROPOIDES NUMMIFER COMPLEX. Herpetologica 1 September 2003; 59 (3): 420–431. doi: https://doi.org/10.1655/01-105.2
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