A distinct mitochondrial genome with DUI-like inheritance in the ocean quahog Arctica islandica
Mitochondrial DNA (mtDNA) is strictly maternally inherited in metazoans. The major exception to this rule has been found in many bivalve species which allow the presence of different sex-linked mtDNA molecules. This mechanism, named Doubly Uniparental Inheritance (DUI), is characterized by the prese...
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OXFORD UNIV PRESS
2015
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ftawi:oai:epic.awi.de:38903 2024-09-15T17:54:27+00:00 A distinct mitochondrial genome with DUI-like inheritance in the ocean quahog Arctica islandica Degletagne, Cyril Abele, Doris Held, Christoph 2015 application/pdf https://epic.awi.de/id/eprint/38903/ https://epic.awi.de/id/eprint/38903/3/Mol_Biol_Evol-2015-Degletagne-molbev_msv224.pdf https://hdl.handle.net/10013/epic.46322 https://hdl.handle.net/10013/epic.46322.d003 unknown OXFORD UNIV PRESS https://epic.awi.de/id/eprint/38903/3/Mol_Biol_Evol-2015-Degletagne-molbev_msv224.pdf https://hdl.handle.net/10013/epic.46322.d003 Degletagne, C. , Abele, D. orcid:0000-0002-5766-5017 and Held, C. orcid:0000-0001-8854-3234 (2015) A distinct mitochondrial genome with DUI-like inheritance in the ocean quahog Arctica islandica , Molecular Biology and Evolution . doi:10.1093/molbev/msv224 <https://doi.org/10.1093/molbev%2Fmsv224> , hdl:10013/epic.46322 EPIC3Molecular Biology and Evolution, OXFORD UNIV PRESS, ISSN: 0737-4038 Article isiRev 2015 ftawi https://doi.org/10.1093/molbev/msv224 2024-06-24T04:12:21Z Mitochondrial DNA (mtDNA) is strictly maternally inherited in metazoans. The major exception to this rule has been found in many bivalve species which allow the presence of different sex-linked mtDNA molecules. This mechanism, named Doubly Uniparental Inheritance (DUI), is characterized by the presence of 2 mtDNAs: the female mtDNA is found in somatic tissue and female gonads whereas the male mtDNA is usually found in male gonads and sperm. In this study we highlight the existence of two divergent mitochondrial haplotypes with a low genetic difference around 6-8% in Arctica islandica, a long-lived clam belonging to the Arcticidae, a sister group to the Veneridae in which DUI has been found. Phylogenetic analysis on cytochrome b and 16S sequences from somatic and gonadic tissues of clams belonging to different populations reveal the presence of the “divergent” type in male gonads only and the “normal” type in somatic tissues and female gonads. This peculiar segregation of divergent mtDNA types speaks for the occurrence of the DUI mechanism in Arctica islandica. This example also highlights the difficulties to assess the presence of such particular mitochondrial inheritance system and underlines the possible misinterpretations in phylogeographic and phylogenetic studies of bivalve species linked to the presence of two poorly differentiated mitochondrial genomes. Article in Journal/Newspaper Arctica islandica Ocean quahog Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center) Molecular Biology and Evolution 33 2 375 383 |
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Open Polar |
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Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center) |
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ftawi |
language |
unknown |
description |
Mitochondrial DNA (mtDNA) is strictly maternally inherited in metazoans. The major exception to this rule has been found in many bivalve species which allow the presence of different sex-linked mtDNA molecules. This mechanism, named Doubly Uniparental Inheritance (DUI), is characterized by the presence of 2 mtDNAs: the female mtDNA is found in somatic tissue and female gonads whereas the male mtDNA is usually found in male gonads and sperm. In this study we highlight the existence of two divergent mitochondrial haplotypes with a low genetic difference around 6-8% in Arctica islandica, a long-lived clam belonging to the Arcticidae, a sister group to the Veneridae in which DUI has been found. Phylogenetic analysis on cytochrome b and 16S sequences from somatic and gonadic tissues of clams belonging to different populations reveal the presence of the “divergent” type in male gonads only and the “normal” type in somatic tissues and female gonads. This peculiar segregation of divergent mtDNA types speaks for the occurrence of the DUI mechanism in Arctica islandica. This example also highlights the difficulties to assess the presence of such particular mitochondrial inheritance system and underlines the possible misinterpretations in phylogeographic and phylogenetic studies of bivalve species linked to the presence of two poorly differentiated mitochondrial genomes. |
format |
Article in Journal/Newspaper |
author |
Degletagne, Cyril Abele, Doris Held, Christoph |
spellingShingle |
Degletagne, Cyril Abele, Doris Held, Christoph A distinct mitochondrial genome with DUI-like inheritance in the ocean quahog Arctica islandica |
author_facet |
Degletagne, Cyril Abele, Doris Held, Christoph |
author_sort |
Degletagne, Cyril |
title |
A distinct mitochondrial genome with DUI-like inheritance in the ocean quahog Arctica islandica |
title_short |
A distinct mitochondrial genome with DUI-like inheritance in the ocean quahog Arctica islandica |
title_full |
A distinct mitochondrial genome with DUI-like inheritance in the ocean quahog Arctica islandica |
title_fullStr |
A distinct mitochondrial genome with DUI-like inheritance in the ocean quahog Arctica islandica |
title_full_unstemmed |
A distinct mitochondrial genome with DUI-like inheritance in the ocean quahog Arctica islandica |
title_sort |
distinct mitochondrial genome with dui-like inheritance in the ocean quahog arctica islandica |
publisher |
OXFORD UNIV PRESS |
publishDate |
2015 |
url |
https://epic.awi.de/id/eprint/38903/ https://epic.awi.de/id/eprint/38903/3/Mol_Biol_Evol-2015-Degletagne-molbev_msv224.pdf https://hdl.handle.net/10013/epic.46322 https://hdl.handle.net/10013/epic.46322.d003 |
genre |
Arctica islandica Ocean quahog |
genre_facet |
Arctica islandica Ocean quahog |
op_source |
EPIC3Molecular Biology and Evolution, OXFORD UNIV PRESS, ISSN: 0737-4038 |
op_relation |
https://epic.awi.de/id/eprint/38903/3/Mol_Biol_Evol-2015-Degletagne-molbev_msv224.pdf https://hdl.handle.net/10013/epic.46322.d003 Degletagne, C. , Abele, D. orcid:0000-0002-5766-5017 and Held, C. orcid:0000-0001-8854-3234 (2015) A distinct mitochondrial genome with DUI-like inheritance in the ocean quahog Arctica islandica , Molecular Biology and Evolution . doi:10.1093/molbev/msv224 <https://doi.org/10.1093/molbev%2Fmsv224> , hdl:10013/epic.46322 |
op_doi |
https://doi.org/10.1093/molbev/msv224 |
container_title |
Molecular Biology and Evolution |
container_volume |
33 |
container_issue |
2 |
container_start_page |
375 |
op_container_end_page |
383 |
_version_ |
1810430773220605952 |