COI sequences of Ophiontous victoriae and O. hexactis
Assembled and aligned COI sequences of Ophiontous victoriae and O. hexactis [Abstract: Related publication]: The drivers behind evolutionary innovations such as contrasting life histories and morphological change are central questions of evolutionary biology. However, the environmental and ecologica...
Format: | Dataset |
---|---|
Language: | unknown |
Published: |
James Cook University
|
Subjects: | |
Online Access: | https://doi.org/10.1002/ece3.8376 https://researchdata.edu.au/coi-sequences-ophiontous-o-hexactis/2036982 https://test-jcu.redboxresearchdata.com.au/data/published/565c5240a00e11ecadc7cd125c4cc081 |
id |
ftands:oai:ands.org.au::2036982 |
---|---|
record_format |
openpolar |
spelling |
ftands:oai:ands.org.au::2036982 2023-05-15T13:52:34+02:00 COI sequences of Ophiontous victoriae and O. hexactis Spatial: https://doi.org/10.1002/ece3.8376 https://researchdata.edu.au/coi-sequences-ophiontous-o-hexactis/2036982 https://test-jcu.redboxresearchdata.com.au/data/published/565c5240a00e11ecadc7cd125c4cc081 unknown James Cook University https://researchdata.edu.au/coi-sequences-ophiontous-o-hexactis/2036982 https://test-jcu.redboxresearchdata.com.au/data/published/565c5240a00e11ecadc7cd125c4cc081 https://doi.org/10.1002/ece3.8376 orcid:0000-0003-2994-637X https://test-jcu.redboxresearchdata.com.au/data/ contrasting life histories evolutionary innovations glacial refugia morphological innovation population genetics Population Ecological and Evolutionary Genetics BIOLOGICAL SCIENCES GENETICS Biological Adaptation EVOLUTIONARY BIOLOGY Life Histories dataset ftands https://doi.org/10.1002/ece3.8376 2022-10-03T22:30:34Z Assembled and aligned COI sequences of Ophiontous victoriae and O. hexactis [Abstract: Related publication]: The drivers behind evolutionary innovations such as contrasting life histories and morphological change are central questions of evolutionary biology. However, the environmental and ecological contexts linked to evolutionary innovations are generally unclear. During the Pleistocene glacial cycles, grounded ice sheets expanded across the Southern Ocean continental shelf. Limited ice-free areas remained, and fauna were isolated from other refugial populations. Survival in Southern Ocean refugia could present opportunities for ecological adaptation and evolutionary innovation. Here, we reconstructed the phylogeographic patterns of circum-Antarctic brittle stars Ophionotus victoriae and O . hexactis with contrasting life histories (broadcasting vs brooding) and morphology (5 vs 6 arms). We examined the evolutionary relationship between the two species using cytochrome c oxidase subunit I (COI) data. COI data suggested that O . victoriae is a single species (rather than a species complex) and is closely related to O . hexactis (a separate species). Since their recent divergence in the mid-Pleistocene, O . victoriae and O . hexactis likely persisted differently throughout glacial maxima, in deep-sea and Antarctic island refugia, respectively. Genetic connectivity, within and between the Antarctic continental shelf and islands, was also observed and could be linked to the Antarctic Circumpolar Current and local oceanographic regimes. Signatures of a probable seascape corridor linking connectivity between the Scotia Sea and Prydz Bay are also highlighted. We suggest that survival in Antarctic island refugia was associated with increase in arm number and a switch from broadcast spawning to brooding in O . hexactis , and propose that it could be linked to environmental changes (such as salinity) associated with intensified interglacial-glacial cycles. Software/equipment used to create/collect the data: Sanger ... Dataset Antarc* Antarctic Prydz Bay Scotia Sea Southern Ocean Research Data Australia (Australian National Data Service - ANDS) Antarctic Prydz Bay Scotia Sea Southern Ocean The Antarctic |
institution |
Open Polar |
collection |
Research Data Australia (Australian National Data Service - ANDS) |
op_collection_id |
ftands |
language |
unknown |
topic |
contrasting life histories evolutionary innovations glacial refugia morphological innovation population genetics Population Ecological and Evolutionary Genetics BIOLOGICAL SCIENCES GENETICS Biological Adaptation EVOLUTIONARY BIOLOGY Life Histories |
spellingShingle |
contrasting life histories evolutionary innovations glacial refugia morphological innovation population genetics Population Ecological and Evolutionary Genetics BIOLOGICAL SCIENCES GENETICS Biological Adaptation EVOLUTIONARY BIOLOGY Life Histories COI sequences of Ophiontous victoriae and O. hexactis |
topic_facet |
contrasting life histories evolutionary innovations glacial refugia morphological innovation population genetics Population Ecological and Evolutionary Genetics BIOLOGICAL SCIENCES GENETICS Biological Adaptation EVOLUTIONARY BIOLOGY Life Histories |
description |
Assembled and aligned COI sequences of Ophiontous victoriae and O. hexactis [Abstract: Related publication]: The drivers behind evolutionary innovations such as contrasting life histories and morphological change are central questions of evolutionary biology. However, the environmental and ecological contexts linked to evolutionary innovations are generally unclear. During the Pleistocene glacial cycles, grounded ice sheets expanded across the Southern Ocean continental shelf. Limited ice-free areas remained, and fauna were isolated from other refugial populations. Survival in Southern Ocean refugia could present opportunities for ecological adaptation and evolutionary innovation. Here, we reconstructed the phylogeographic patterns of circum-Antarctic brittle stars Ophionotus victoriae and O . hexactis with contrasting life histories (broadcasting vs brooding) and morphology (5 vs 6 arms). We examined the evolutionary relationship between the two species using cytochrome c oxidase subunit I (COI) data. COI data suggested that O . victoriae is a single species (rather than a species complex) and is closely related to O . hexactis (a separate species). Since their recent divergence in the mid-Pleistocene, O . victoriae and O . hexactis likely persisted differently throughout glacial maxima, in deep-sea and Antarctic island refugia, respectively. Genetic connectivity, within and between the Antarctic continental shelf and islands, was also observed and could be linked to the Antarctic Circumpolar Current and local oceanographic regimes. Signatures of a probable seascape corridor linking connectivity between the Scotia Sea and Prydz Bay are also highlighted. We suggest that survival in Antarctic island refugia was associated with increase in arm number and a switch from broadcast spawning to brooding in O . hexactis , and propose that it could be linked to environmental changes (such as salinity) associated with intensified interglacial-glacial cycles. Software/equipment used to create/collect the data: Sanger ... |
format |
Dataset |
title |
COI sequences of Ophiontous victoriae and O. hexactis |
title_short |
COI sequences of Ophiontous victoriae and O. hexactis |
title_full |
COI sequences of Ophiontous victoriae and O. hexactis |
title_fullStr |
COI sequences of Ophiontous victoriae and O. hexactis |
title_full_unstemmed |
COI sequences of Ophiontous victoriae and O. hexactis |
title_sort |
coi sequences of ophiontous victoriae and o. hexactis |
publisher |
James Cook University |
url |
https://doi.org/10.1002/ece3.8376 https://researchdata.edu.au/coi-sequences-ophiontous-o-hexactis/2036982 https://test-jcu.redboxresearchdata.com.au/data/published/565c5240a00e11ecadc7cd125c4cc081 |
op_coverage |
Spatial: |
geographic |
Antarctic Prydz Bay Scotia Sea Southern Ocean The Antarctic |
geographic_facet |
Antarctic Prydz Bay Scotia Sea Southern Ocean The Antarctic |
genre |
Antarc* Antarctic Prydz Bay Scotia Sea Southern Ocean |
genre_facet |
Antarc* Antarctic Prydz Bay Scotia Sea Southern Ocean |
op_source |
https://test-jcu.redboxresearchdata.com.au/data/ |
op_relation |
https://researchdata.edu.au/coi-sequences-ophiontous-o-hexactis/2036982 https://test-jcu.redboxresearchdata.com.au/data/published/565c5240a00e11ecadc7cd125c4cc081 https://doi.org/10.1002/ece3.8376 orcid:0000-0003-2994-637X |
op_doi |
https://doi.org/10.1002/ece3.8376 |
_version_ |
1766256987126890496 |