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Species composition and hybridisation of mussel species (Bivalvia: Mytilidae) in Australia

Ab Rahim, Emi Sherizan, Nguyen, Thuy T. T., Ingram, Brett, Riginos, Cynthia, Weston, Kim J. and Sherman, Craig D. H. 2016, Species composition and hybridisation of mussel species (Bivalvia: Mytilidae) in Australia, Marine and freshwater research, vol. 67, no. 12, pp. 1955-1963, doi: 10.1071/MF15307.

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Title Species composition and hybridisation of mussel species (Bivalvia: Mytilidae) in Australia
Author(s) Ab Rahim, Emi Sherizan
Nguyen, Thuy T. T.
Ingram, Brett
Riginos, Cynthia
Weston, Kim J.
Sherman, Craig D. H.ORCID iD for Sherman, Craig D. H. orcid.org/0000-0003-2099-0462
Journal name Marine and freshwater research
Volume number 67
Issue number 12
Start page 1955
End page 1963
Total pages 9
Publisher CSIRO Publishing
Place of publication Clayton, Vic.
Publication date 2016
ISSN 1323-1650
1448-6059
Keyword(s) biogeography
diversity
gene flow
genetic identification
hybridisation
speciation
species complex
Summary Mussels belonging to the Mytilus edulis species complex have been the focus of numerous studies exploring the systematics and origin of this commercially and ecologically important genus. Species have wide geographical ranges and hybridise where their distributions overlap, making identification difficult. Several molecular markers have been used to distinguish between the species within the M. edulis species complex; however, no single marker system has been found to be completely diagnostic, and a combination of markers are used. Here, we used a combination of three nuclear genes and a mitochondrial gene region to assess the species composition of Mytilus mussels collected across its geographical range in Australia. Our results show that the majority (98.5%) of individuals sampled from Australian populations are Mytilus galloprovincialis, with 56.2% of them displaying a southern hemisphere haplotype, 10.3% displaying a putatively northern hemisphere haplotype, and 32% having M. galloprovincialis genotypes consistent with either northern or southern hemisphere M. galloprovincialis lineages. The taxonomic origin of the remaining 1.5% of samples (n ¼ 3) could not be conclusively determined. Our results suggest that there have been significant introductions of non-native M. galloprovincialis lineages into both southern and northern hemisphere populations.
Language eng
DOI 10.1071/MF15307
Field of Research 060808 Invertebrate Biology
Socio Economic Objective 970105 Expanding Knowledge in the Environmental Sciences
HERDC Research category C1 Refereed article in a scholarly journal
ERA Research output type C Journal article
Copyright notice ©2016, CSIRO
Persistent URL http://hdl.handle.net/10536/DRO/DU:30083144

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