Speciation of Antechinus stuartii and A. subtropicus (Marsupialia : Dasyuridae) in eastern Australia: molecular and morphological evidence

Crowther, M. S., Sumner, J. and Dickman, C. R. (2003) Speciation of Antechinus stuartii and A. subtropicus (Marsupialia : Dasyuridae) in eastern Australia: molecular and morphological evidence. Australian Journal of Zoology, 51 5: 443-462. doi:10.1071/ZO02009


Author Crowther, M. S.
Sumner, J.
Dickman, C. R.
Title Speciation of Antechinus stuartii and A. subtropicus (Marsupialia : Dasyuridae) in eastern Australia: molecular and morphological evidence
Journal name Australian Journal of Zoology   Check publisher's open access policy
ISSN 0004-959X
1446-5698
Publication date 2003
Sub-type Article (original research)
DOI 10.1071/ZO02009
Volume 51
Issue 5
Start page 443
End page 462
Total pages 19
Editor D. McGlashan
Place of publication Australia
Publisher CSIRO Publishing
Collection year 2004
Language eng
Subject C1
270208 Molecular Evolution
780105 Biological sciences
Abstract This paper evaluates the systematic status of the Antechinus populations of northern New South Wales and southern Queensland, using a combined morphological and molecular (allozymes and mitochondrial DNA) approach. Analysis of the d-loop section of the mitochondrial DNA control region revealed two highly supported clades within A. stuartii sensu lato that were sympatric in the Border Ranges of northern New South Wales. However, genetic distances between these clades were small ( approximately 3%), indicating that time of divergence was probably relatively recent. Allozyme electrophoresis also showed very small differences between clades/ species. Analyses of cranial and dental characters showed that the members of each of these clades differed morphologically and that the clades corresponded to A. stuartii and the recently described A. subtropicus. The combined results support the species status of A. stuartii and A. subtropicus, and suggest that speciation was likely a result of a recent vicariant event.
Keyword Zoology
Mitochondrial Control Region
Population-genetics
Conservation
Dna
Evolution
Program
Amplification
Reproduction
Systematics
Photoperiod
Q-Index Code C1

 
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Created: Wed, 15 Aug 2007, 03:14:15 EST