Coalescent Species Tree Inference of Coluber and Masticophis
Por:
Myers E.A., Burgoon J.L., Ray J.M., Martínez-Gómez J.E., Matías-Ferrer N., Mulcahy D.G., Burbrink F.T.
Publicada:
1 nov 2017
Resumen:
The genus-level taxonomy of the New World racers and whipsnakes (Coluber and Masticophis) has long been contentious regarding whether the two genera are mutually exclusive clades. This argument is based on morphological characters and largely single-locus analyses. Herein we examine the phylogenetic history of this group using multi-locus data in a coalescent framework, where paraphyly of Masticophis would result in support for the recognition of only a single genus (Coluber) for these species. We sample all currently recognized species and incorporate broad geographic sampling for the more widespread species groups to explore biogeographic patterns across North America. Our analyses suggest that Masticophis is monophyletic with respect to Coluber constrictor, albeit with low support. These results also demonstrate that there is undescribed cryptic diversity in this group, and we underscore additional avenues of study to further delimit unrecognized species in this clade. The biogeography of the island endemic, Masticophis anthonyi, is discussed with respect to what is known about other codistributed vertebrates. Lastly we provide an overview of the history of the arguments for or against the use of the generic name Masticophis and suggest its continued use. © 2017 by the American Society of Ichthyologists and Herpetologists.
Filiaciones:
Myers E.A.:
Amer Museum Nat Hist, Dept Herpetol, Cent Pk West & 79th St, New York, NY 10024 USA
Department of Herpetology, American Museum of Natural History, Central Park West and 79th Street, New York, NY 10024, United States
Burgoon J.L.:
Amer Museum Nat Hist, Dept Herpetol, Cent Pk West & 79th St, New York, NY 10024 USA
Department of Herpetology, American Museum of Natural History, Central Park West and 79th Street, New York, NY 10024, United States
Ray J.M.:
Towson Univ, Dept Biol, Towson, MD 21252 USA
Biology Department, Towson University, Towson, MD 21252, United States
Martínez-Gómez J.E.:
Inst Ecol AC, Red Interacc Multitrof, Carretera Antigua Coatepec 351, Xalapa 91070, Veracruz, Mexico
Instituto de Ecología, A.C., Red de Interacciones Multitróficas, Carretera Antigua a Coatepec 351, Xalapa, Veracruz, 91070, Mexico
Matías-Ferrer N.:
Univ Nacl Autonoma Mexico, Inst Biol, Apartado Postal 70-153, Mexico City 04510, DF, Mexico
Endem Insulares AC, Celestino Martinez 23, Coatepec 91500, Veracruz, Mexico
Instituto de Biología, Universidad Nacional Autónoma de México, Apartado Postal 70-15304510, Mexico
Endémicos Insulares, A.C. Celestino Martínez 23, Coatepec, Veracruz, 91500, Mexico
Mulcahy D.G.:
Smithsonian Inst, Natl Museum Nat Hist, Global Genome Initiat, 10th & Constitut Ave,NW MRC 183, Washington, DC 20560 USA
Global Genome Initiative, National Museum of Natural History, Smithsonian Institution, 10th and Constitution Ave., NW MRC 183, Washington, DC 20560-0188, United States
Burbrink F.T.:
Amer Museum Nat Hist, Dept Herpetol, Cent Pk West & 79th St, New York, NY 10024 USA
Department of Herpetology, American Museum of Natural History, Central Park West and 79th Street, New York, NY 10024, United States
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