Molecular phylogeny of the tribe Philodryadini Cope, 1886 (Dipsadidae: Xenodontinae): Rediscovering the diversity of the South American Racers

Authors

  • Arredondo, J.C. Universidad CES, Facultad de Ciencias y Biotecnología, Colecciones Biológicas Universidad CES (CBUCES) - Medellín, Antioquía, Colombia; Universidade de São Paulo (USP), Museu de Zoologia (MZUSP) - São Paulo, SP, Brasil.
  • Grazziotin, F.G. Instituto Butantan, Laboratório Especial de Coleções Zoológicas (LECZ) - São Paulo, SP, Brasil.
  • Scrocchi, G.J. Fundación Miguel Lillo, Unidad Ejecutora Lillo (CONICET‑UEL) - San Miguel de Tucumán, Tucumán, Argentina.
  • Rodrigues, M.T. Universidade de São Paulo (USP), Instituto de Biociências (IB‑USP), Departamento de Zoologia - São Paulo, SP, Brasil.
  • Bonatto, S.L. Pontifícia Universidade Católica do Rio Grande do Sul (PUC-RS), Escola de Ciências da Saúde e da Vida, Laboratório de Biologia Genômica e Molecular - Porto Alegre, RS, Brasil.
  • Zaher, H. Universidade de São Paulo (USP), Museu de Zoologia (MZUSP) - São Paulo, SP, Brasil.

DOI:

https://doi.org/10.11606/1807-0205/2020.60.53

Keywords:

Philodryas, Chlorosoma, Xenoxybelis, Andean Endemism, New Tribe

Abstract

South American racers of the tribe Philodryadini are a widespread and diverse group of Neotropical snakes with a complex taxonomic and systematic history. Recent studies failed to present a robust phylogenetic hypothesis for the tribe, mainly due to incomplete taxon sampling. Here we provide the most extensive molecular phylogenetic analysis of Philodryadini available so far, including 20 species (83% of the known diversity) from which six were not sampled previously. Our results reveal that Philodryadini is not monophyletic, but instead includes a central Andean clade formed by Philodryas simonsii, P. tachymenoides, and P. amaru, and a southern and cis-Andean clade including all remaining philodryadines. This discovery requires resurrection of two genera as well as erection of a new tribe of Xenodontinae for the central Andean clade. Within the southern and cis-Andean radiation, our analyses resolve a basal dichotomy separating two main lineages: Clade A, containing the Common Green Racers P. laticeps and P. viridissima and the South American Vine snakes P. georgeboulengeri and P. argentea; and Clade B, including the remaining species of Philodryas sensu stricto. We resurrect the genera Chlorosoma and Xenoxybelis to better represent the monophyly of lineages within the southern and cis-Andean clade.

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Author Biographies

Arredondo, J.C., Universidad CES, Facultad de Ciencias y Biotecnología, Colecciones Biológicas Universidad CES (CBUCES) - Medellín, Antioquía, Colombia; Universidade de São Paulo (USP), Museu de Zoologia (MZUSP) - São Paulo, SP, Brasil.

Calle 10A No 22-04, Medellín, Antioquía, Colombia.
Avenida Nazaré, 481, Ipiranga, CEP 04263-000, São Paulo, SP, Brasil.

Grazziotin, F.G., Instituto Butantan, Laboratório Especial de Coleções Zoológicas (LECZ) - São Paulo, SP, Brasil.

Avenida Doutor Vital Brasil, 1.500, Butantã, CEP 05503-900, São Paulo, SP, Brasil.

Scrocchi, G.J., Fundación Miguel Lillo, Unidad Ejecutora Lillo (CONICET‑UEL) - San Miguel de Tucumán, Tucumán, Argentina.

Miguel Lillo 251, San Miguel de Tucumán, Tucumán, Argentina.

Rodrigues, M.T., Universidade de São Paulo (USP), Instituto de Biociências (IB‑USP), Departamento de Zoologia - São Paulo, SP, Brasil.

Rua do Matão, travessa 14, 321, Butantã, CEP 05508-090, São Paulo, SP, Brasil.

Bonatto, S.L., Pontifícia Universidade Católica do Rio Grande do Sul (PUC-RS), Escola de Ciências da Saúde e da Vida, Laboratório de Biologia Genômica e Molecular - Porto Alegre, RS, Brasil.

Avenida Ipiranga, 6.681, Partenon, CEP 90619-900, Porto Alegre, RS, Brasil.

Zaher, H., Universidade de São Paulo (USP), Museu de Zoologia (MZUSP) - São Paulo, SP, Brasil.

Avenida Nazaré, 481, Ipiranga, CEP 04263-000, São Paulo, SP, Brasil.

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2020-10-20

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Arredondo, J. C. ., Grazziotin, F. G., Scrocchi Manfrini, G. J., Rodrigues, M. T. U., Bonatto, S. L., & Zaher, H. E. D. (2020). Molecular phylogeny of the tribe Philodryadini Cope, 1886 (Dipsadidae: Xenodontinae): Rediscovering the diversity of the South American Racers. Papéis Avulsos De Zoologia, 60, e20206053. https://doi.org/10.11606/1807-0205/2020.60.53

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