Cryptic diversity in smooth-shelled mussels on Southern Ocean islands: connectivity, hybridisation and a marine invasion
Abstract Background Large numbers of endemic species inhabit subantarctic continental coasts and islands that are characterised by highly variable environmental conditions. Southern hemisphere populations of taxa that are morphologically similar to northern counterparts have traditionally been consi...
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ftdoajarticles:oai:doaj.org/article:41fe9ed2910b4b6a859c1653d5a45ba5 2023-05-15T15:33:42+02:00 Cryptic diversity in smooth-shelled mussels on Southern Ocean islands: connectivity, hybridisation and a marine invasion Małgorzata Zbawicka Jonathan P. A. Gardner Roman Wenne 2019-08-01T00:00:00Z https://doi.org/10.1186/s12983-019-0332-y https://doaj.org/article/41fe9ed2910b4b6a859c1653d5a45ba5 EN eng BMC http://link.springer.com/article/10.1186/s12983-019-0332-y https://doaj.org/toc/1742-9994 doi:10.1186/s12983-019-0332-y 1742-9994 https://doaj.org/article/41fe9ed2910b4b6a859c1653d5a45ba5 Frontiers in Zoology, Vol 16, Iss 1, Pp 1-12 (2019) Mytilus Southern Ocean SNP genotyping Introgression Hybridisation Falkland Islands Zoology QL1-991 article 2019 ftdoajarticles https://doi.org/10.1186/s12983-019-0332-y 2022-12-31T02:54:27Z Abstract Background Large numbers of endemic species inhabit subantarctic continental coasts and islands that are characterised by highly variable environmental conditions. Southern hemisphere populations of taxa that are morphologically similar to northern counterparts have traditionally been considered to be extensions of such Northern hemisphere taxa, and may not exhibit differentiation amongst geographically isolated populations in the Southern Ocean. Smooth-shelled blue mussels of the genus Mytilus that exhibit an anti-tropical distribution are a model group to study phylogeography, speciation and hybridisation in the sea, and contribute to the theory and practice of marine biosecurity. Methods We used a single nucleotide polymorphism (SNPs) panel that has the ability to accurately identify reference Northern and Southern hemisphere Mytilus taxa to test for evolutionary differentiation amongst native Southern Ocean island populations. Results Native mussels from the Falkland Islands and the Kerguelen Islands exhibited greatest affinity to native M. platensis d’Orbigny 1846 from the Atlantic coast of South America. The major Southern Ocean current flow from west to east is likely to explain the spreading of M. platensis to remote offshore islands, as adults via the process of rafting or perhaps directly as larvae. SNPs variation revealed that mussels from Tasmania were native and clearly differentiated from all other blue mussel groups in the Southern and Northern hemispheres. The native mussels M. planulatus from Tasmania and from mainland New Zealand (NZ), and tentatively M. aoteanus from the two NZ Southern Ocean offshore island groups (the Auckland Islands and Campbell Island), formed a distinct M. galloprovincialis–like Southern hemisphere group with closest affinity to Northern hemisphere M. galloprovincialis from the Mediterranean Sea. In all cases, the SNPs revealed evidence of hybridisation between two or more distinct taxa. The invasive Northern hemisphere M. galloprovincialis was identified only ... Article in Journal/Newspaper Auckland Islands Kerguelen Islands Southern Ocean Ocean Island Directory of Open Access Journals: DOAJ Articles Southern Ocean Kerguelen Kerguelen Islands New Zealand Campbell Island ENVELOPE(169.500,169.500,-52.500,-52.500) Frontiers in Zoology 16 1 |
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Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
Mytilus Southern Ocean SNP genotyping Introgression Hybridisation Falkland Islands Zoology QL1-991 |
spellingShingle |
Mytilus Southern Ocean SNP genotyping Introgression Hybridisation Falkland Islands Zoology QL1-991 Małgorzata Zbawicka Jonathan P. A. Gardner Roman Wenne Cryptic diversity in smooth-shelled mussels on Southern Ocean islands: connectivity, hybridisation and a marine invasion |
topic_facet |
Mytilus Southern Ocean SNP genotyping Introgression Hybridisation Falkland Islands Zoology QL1-991 |
description |
Abstract Background Large numbers of endemic species inhabit subantarctic continental coasts and islands that are characterised by highly variable environmental conditions. Southern hemisphere populations of taxa that are morphologically similar to northern counterparts have traditionally been considered to be extensions of such Northern hemisphere taxa, and may not exhibit differentiation amongst geographically isolated populations in the Southern Ocean. Smooth-shelled blue mussels of the genus Mytilus that exhibit an anti-tropical distribution are a model group to study phylogeography, speciation and hybridisation in the sea, and contribute to the theory and practice of marine biosecurity. Methods We used a single nucleotide polymorphism (SNPs) panel that has the ability to accurately identify reference Northern and Southern hemisphere Mytilus taxa to test for evolutionary differentiation amongst native Southern Ocean island populations. Results Native mussels from the Falkland Islands and the Kerguelen Islands exhibited greatest affinity to native M. platensis d’Orbigny 1846 from the Atlantic coast of South America. The major Southern Ocean current flow from west to east is likely to explain the spreading of M. platensis to remote offshore islands, as adults via the process of rafting or perhaps directly as larvae. SNPs variation revealed that mussels from Tasmania were native and clearly differentiated from all other blue mussel groups in the Southern and Northern hemispheres. The native mussels M. planulatus from Tasmania and from mainland New Zealand (NZ), and tentatively M. aoteanus from the two NZ Southern Ocean offshore island groups (the Auckland Islands and Campbell Island), formed a distinct M. galloprovincialis–like Southern hemisphere group with closest affinity to Northern hemisphere M. galloprovincialis from the Mediterranean Sea. In all cases, the SNPs revealed evidence of hybridisation between two or more distinct taxa. The invasive Northern hemisphere M. galloprovincialis was identified only ... |
format |
Article in Journal/Newspaper |
author |
Małgorzata Zbawicka Jonathan P. A. Gardner Roman Wenne |
author_facet |
Małgorzata Zbawicka Jonathan P. A. Gardner Roman Wenne |
author_sort |
Małgorzata Zbawicka |
title |
Cryptic diversity in smooth-shelled mussels on Southern Ocean islands: connectivity, hybridisation and a marine invasion |
title_short |
Cryptic diversity in smooth-shelled mussels on Southern Ocean islands: connectivity, hybridisation and a marine invasion |
title_full |
Cryptic diversity in smooth-shelled mussels on Southern Ocean islands: connectivity, hybridisation and a marine invasion |
title_fullStr |
Cryptic diversity in smooth-shelled mussels on Southern Ocean islands: connectivity, hybridisation and a marine invasion |
title_full_unstemmed |
Cryptic diversity in smooth-shelled mussels on Southern Ocean islands: connectivity, hybridisation and a marine invasion |
title_sort |
cryptic diversity in smooth-shelled mussels on southern ocean islands: connectivity, hybridisation and a marine invasion |
publisher |
BMC |
publishDate |
2019 |
url |
https://doi.org/10.1186/s12983-019-0332-y https://doaj.org/article/41fe9ed2910b4b6a859c1653d5a45ba5 |
long_lat |
ENVELOPE(169.500,169.500,-52.500,-52.500) |
geographic |
Southern Ocean Kerguelen Kerguelen Islands New Zealand Campbell Island |
geographic_facet |
Southern Ocean Kerguelen Kerguelen Islands New Zealand Campbell Island |
genre |
Auckland Islands Kerguelen Islands Southern Ocean Ocean Island |
genre_facet |
Auckland Islands Kerguelen Islands Southern Ocean Ocean Island |
op_source |
Frontiers in Zoology, Vol 16, Iss 1, Pp 1-12 (2019) |
op_relation |
http://link.springer.com/article/10.1186/s12983-019-0332-y https://doaj.org/toc/1742-9994 doi:10.1186/s12983-019-0332-y 1742-9994 https://doaj.org/article/41fe9ed2910b4b6a859c1653d5a45ba5 |
op_doi |
https://doi.org/10.1186/s12983-019-0332-y |
container_title |
Frontiers in Zoology |
container_volume |
16 |
container_issue |
1 |
_version_ |
1766364233470050304 |