The evolutionary origins of the Southern Ocean philobryid bivalves: hidden biodiversity, ancient persistence
Philobryids (Bivalvia: Arcoida) are one of the most speciose marine bivalve families in the Southern Ocean and are common throughout the Southern Hemisphere. Considering this diversity and their brooding reproductive mode (limiting long-distance dispersal), this family may have been present in the S...
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ftnerc:oai:nora.nerc.ac.uk:509031 2023-05-15T13:48:08+02:00 The evolutionary origins of the Southern Ocean philobryid bivalves: hidden biodiversity, ancient persistence Jackson, Jennifer A. Linse, Katrin Whittle, Rowan Griffiths, Huw J. 2015-04-08 text http://nora.nerc.ac.uk/id/eprint/509031/ https://nora.nerc.ac.uk/id/eprint/509031/1/Jackson.pdf en eng Public Library of Science https://nora.nerc.ac.uk/id/eprint/509031/1/Jackson.pdf Jackson, Jennifer A. orcid:0000-0003-4158-1924 Linse, Katrin orcid:0000-0003-3477-3047 Whittle, Rowan orcid:0000-0001-6953-5829 Griffiths, Huw J. orcid:0000-0003-1764-223X . 2015 The evolutionary origins of the Southern Ocean philobryid bivalves: hidden biodiversity, ancient persistence. PLoS One, 10 (4), e0121198. 20, pp. https://doi.org/10.1371/journal.pone.0121198 <https://doi.org/10.1371/journal.pone.0121198> cc_by CC-BY Publication - Article PeerReviewed 2015 ftnerc https://doi.org/10.1371/journal.pone.0121198 2023-02-04T19:40:38Z Philobryids (Bivalvia: Arcoida) are one of the most speciose marine bivalve families in the Southern Ocean and are common throughout the Southern Hemisphere. Considering this diversity and their brooding reproductive mode (limiting long-distance dispersal), this family may have been present in the Southern Ocean since its inception. However Philobrya and Adacnarca appear only in the Quaternary fossil record of the Antarctic, suggesting a much more recent incursion. Molecular dating provides an independent means of measuring the time of origin and radiation of this poorly known group. Here we present the first combined molecular and morphological investigation of the Philobryidae in the Southern Ocean. Two nuclear loci (18S and 28S) were amplified from 35 Southern Ocean Adacnarca and Philobrya specimens, with a combined sequence length of 2,282 base pairs (bp). Adacnarca specimens (A. nitens and A. limopsoides) were resolved as a strongly supported monophyletic group. Genus Philobrya fell into two strongly supported groups (‘sublaevis’ and ‘magellanica/wandelensis’), paraphyletic with Adacnarca. The A. nitens species complex is identified as at least seven morpho-species through morphological and genetic analysis of taxon clustering. Phylogenetic analyses resolve Philobryidae as a strongly supported monophyletic clade and sister taxon to the Limopsidae, as anticipated by their classification into the superfamily Limopsoidea. Bayesian relaxed clock analyses of divergence times suggest that genus Adacnarca radiated in the Southern Ocean from the Early Paleogene, while P. sublaevis and P. wandelensis clades radiated in the late Miocene, following the formation of the Antarctic Circumpolar Current. Article in Journal/Newspaper Antarc* Antarctic Southern Ocean Natural Environment Research Council: NERC Open Research Archive Antarctic Southern Ocean The Antarctic PLOS ONE 10 4 e0121198 |
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Natural Environment Research Council: NERC Open Research Archive |
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English |
description |
Philobryids (Bivalvia: Arcoida) are one of the most speciose marine bivalve families in the Southern Ocean and are common throughout the Southern Hemisphere. Considering this diversity and their brooding reproductive mode (limiting long-distance dispersal), this family may have been present in the Southern Ocean since its inception. However Philobrya and Adacnarca appear only in the Quaternary fossil record of the Antarctic, suggesting a much more recent incursion. Molecular dating provides an independent means of measuring the time of origin and radiation of this poorly known group. Here we present the first combined molecular and morphological investigation of the Philobryidae in the Southern Ocean. Two nuclear loci (18S and 28S) were amplified from 35 Southern Ocean Adacnarca and Philobrya specimens, with a combined sequence length of 2,282 base pairs (bp). Adacnarca specimens (A. nitens and A. limopsoides) were resolved as a strongly supported monophyletic group. Genus Philobrya fell into two strongly supported groups (‘sublaevis’ and ‘magellanica/wandelensis’), paraphyletic with Adacnarca. The A. nitens species complex is identified as at least seven morpho-species through morphological and genetic analysis of taxon clustering. Phylogenetic analyses resolve Philobryidae as a strongly supported monophyletic clade and sister taxon to the Limopsidae, as anticipated by their classification into the superfamily Limopsoidea. Bayesian relaxed clock analyses of divergence times suggest that genus Adacnarca radiated in the Southern Ocean from the Early Paleogene, while P. sublaevis and P. wandelensis clades radiated in the late Miocene, following the formation of the Antarctic Circumpolar Current. |
format |
Article in Journal/Newspaper |
author |
Jackson, Jennifer A. Linse, Katrin Whittle, Rowan Griffiths, Huw J. |
spellingShingle |
Jackson, Jennifer A. Linse, Katrin Whittle, Rowan Griffiths, Huw J. The evolutionary origins of the Southern Ocean philobryid bivalves: hidden biodiversity, ancient persistence |
author_facet |
Jackson, Jennifer A. Linse, Katrin Whittle, Rowan Griffiths, Huw J. |
author_sort |
Jackson, Jennifer A. |
title |
The evolutionary origins of the Southern Ocean philobryid bivalves: hidden biodiversity, ancient persistence |
title_short |
The evolutionary origins of the Southern Ocean philobryid bivalves: hidden biodiversity, ancient persistence |
title_full |
The evolutionary origins of the Southern Ocean philobryid bivalves: hidden biodiversity, ancient persistence |
title_fullStr |
The evolutionary origins of the Southern Ocean philobryid bivalves: hidden biodiversity, ancient persistence |
title_full_unstemmed |
The evolutionary origins of the Southern Ocean philobryid bivalves: hidden biodiversity, ancient persistence |
title_sort |
evolutionary origins of the southern ocean philobryid bivalves: hidden biodiversity, ancient persistence |
publisher |
Public Library of Science |
publishDate |
2015 |
url |
http://nora.nerc.ac.uk/id/eprint/509031/ https://nora.nerc.ac.uk/id/eprint/509031/1/Jackson.pdf |
geographic |
Antarctic Southern Ocean The Antarctic |
geographic_facet |
Antarctic Southern Ocean The Antarctic |
genre |
Antarc* Antarctic Southern Ocean |
genre_facet |
Antarc* Antarctic Southern Ocean |
op_relation |
https://nora.nerc.ac.uk/id/eprint/509031/1/Jackson.pdf Jackson, Jennifer A. orcid:0000-0003-4158-1924 Linse, Katrin orcid:0000-0003-3477-3047 Whittle, Rowan orcid:0000-0001-6953-5829 Griffiths, Huw J. orcid:0000-0003-1764-223X . 2015 The evolutionary origins of the Southern Ocean philobryid bivalves: hidden biodiversity, ancient persistence. PLoS One, 10 (4), e0121198. 20, pp. https://doi.org/10.1371/journal.pone.0121198 <https://doi.org/10.1371/journal.pone.0121198> |
op_rights |
cc_by |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.1371/journal.pone.0121198 |
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PLOS ONE |
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10 |
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4 |
container_start_page |
e0121198 |
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1766248786692145152 |