Speciation in chestnut-shouldered fairy-wrens (Malurus spp.) and rapid phenotypic divergence in variegated fairy-wrens (Malurus lamberti): A multilocus approach

McLean, A. J., Toon, A., Schmidt, D. J., Joseph, L.. and Hughes, J. M. (2012) Speciation in chestnut-shouldered fairy-wrens (Malurus spp.) and rapid phenotypic divergence in variegated fairy-wrens (Malurus lamberti): A multilocus approach. Molecular Phylogenetics and Evolution, 63 3: 668-678. doi:10.1016/j.ympev.2012.02.016


Author McLean, A. J.
Toon, A.
Schmidt, D. J.
Joseph, L..
Hughes, J. M.
Title Speciation in chestnut-shouldered fairy-wrens (Malurus spp.) and rapid phenotypic divergence in variegated fairy-wrens (Malurus lamberti): A multilocus approach
Journal name Molecular Phylogenetics and Evolution   Check publisher's open access policy
ISSN 1055-7903
1095-9513
Publication date 2012-06
Sub-type Article (original research)
DOI 10.1016/j.ympev.2012.02.016
Volume 63
Issue 3
Start page 668
End page 678
Total pages 11
Place of publication Maryland Heights MO, United States
Publisher Academic Press
Collection year 2013
Language eng
Formatted abstract
The chestnut-shouldered fairy-wrens comprise a subgroup of four species in the genus Malurus (Passeriformes: Maluridae). Collectively, they are widespread across the Australian continent but phenotypic variation is strongly structured geographically in just one species, M. lamberti. Earlier phylogenetic analyses of this group have been limited to one or two individuals for each species and have not represented all currently recognised subspecies of M. lamberti. Historically, the taxonomy and nomenclature of the M. lamberti complex has been debated, in part because of morphological similarities among its subspecies and another member of the group, M. amabilis. We reconstructed the phylogeny of all four species of chestnut-shouldered fairy-wrens including all four subspecies of M. lamberti using a mitochondrial gene (ND2), five anonymous nuclear loci and three nuclear introns. Phylogenetic analysis of the mitochondrial ND2 gene nests M. amabilis within M. lamberti rendering the latter paraphyletic. Individual nuclear gene trees failed to reliably resolve each of the species boundaries or the phylogenetic relationships found in the mtDNA tree. When combined, however, a strongly supported overall topology was resolved supporting the monophyly of M. lamberti and its sister species relationship to M. amabilis. Current subspecific taxonomy of M. lamberti was not concordant with all evolutionary lineages of M. lamberti, nominotypical M. l. lamberti being the only subspecies recovered as a monophyletic group from mtDNA. Some genetic structuring is evident and potential barriers to gene flow are discussed.
Keyword Mtdna
Nuclear markers
Anonymous loci
Australia
Phylogenetics
Q-Index Code C1
Q-Index Status Confirmed Code
Institutional Status UQ

Document type: Journal Article
Sub-type: Article (original research)
Collections: Official 2013 Collection
School of Biological Sciences Publications
 
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