Title

Molecular Systematics Of The Middle American Jumping Pitvipers (Genus Atropoides) And Phylogeography Of The Atropoides Nummifer Complex

Keywords

Atropoides; Central America; Jumping pitvipers; Middle America; Nummifer; Olmec; Phylogeny; Phylogeography; Picadoi; Pitvipers; Porthidium; Systematics

Abstract

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.

Publication Date

1-1-2003

Publication Title

Herpetologica

Volume

59

Issue

3

Number of Pages

420-431

Document Type

Article

Personal Identifier

scopus

DOI Link

https://doi.org/10.1655/01-105.2

Socpus ID

0141561739 (Scopus)

Source API URL

https://api.elsevier.com/content/abstract/scopus_id/0141561739

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