By the same authors

From the same journal

Snakes across the Strait: trans-Torresian phylogeographic relationships in three genera of Australasian snakes (Serpentes : Elapidae : Acanthophis, Oxyuranus, and Pseudechis)

Research output: Contribution to journalArticle

Published copy (DOI)

Author(s)

Department/unit(s)

Publication details

JournalMolecular Phylogenetics and Evolution
DatePublished - Jan 2005
Issue number1
Volume34
Number of pages14
Pages (from-to)114
Original languageEnglish

Abstract

We analyze the phylogeny of three genera of Australasian elapid snakes (Acanthophis-death adders; Oxyuranus-taipans; Pseudechis-black snakes), using parsimony, maximum likelihood, and Bayesian analysis of sequences of the mitochondrial cytochrome b and ND4 genes. In Acanthophis and Pseudechis, we find evidence of multiple trans-Torresian sister-group relationships. Analyses of the timing of cladogenic events suggest crossings of the Torres Strait on several occasions between the late Miocene and the Pleistocene. These results support a hypothesis of repeated land connections between Australia and New Guinea m the late Cenozoic. Additionally, our results reveal undocumented genetic diversity in Acanthophis and Pseudechis, supporting the existence of more species than previously believed, and provide a phylogenetic framework for a reinterpretation of the systematic's of these genera. In contrast, our Oxyuranus scutellatus samples from Queensland and two localities in New Guinea share a single haplotype, suggesting very recent (late Pleistocene) genetic exchange between New Guinean and Australian populations. (C) 2004 Elsevier Inc. All rights reserved.

    Research areas

  • phylogeography, mitochondrial DNA, Australia, New Guinea, arafura shelf, Acanthophis, Pseudechis, Oxyuranus, BAYESIAN PHYLOGENETIC INFERENCE, MITOCHONDRIAL-DNA SEQUENCES, CYTOCHROME-B GENE, PAPUA-NEW-GUINEA, MOLECULAR EVOLUTION, DIVERGENCE TIMES, VENOMOUS SNAKES, ABSOLUTE RATES, CONSERVATION, SYSTEMATICS

Discover related content

Find related publications, people, projects, datasets and more using interactive charts.

View graph of relations