Calanus InDel genotypes from: No evidence for hybridization between Calanus finmarchicus and C. glacialis in a subarctic area of sympatry
In the North Atlantic and the Arctic Ocean, four species of the copepod genus Calanus dominate the zooplankton biomass. Because of their morphological resemblance, knowledge of their respective distribution range has long been biased by misidentification, until the recent use of molecular tools unco...
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ftzenodo:oai:zenodo.org:4971791 2023-05-15T15:02:12+02:00 Calanus InDel genotypes from: No evidence for hybridization between Calanus finmarchicus and C. glacialis in a subarctic area of sympatry Choquet, Marvin Burckard, Gauthier Skreslet, Stig Hoarau, Galice Søreide, Janne E. 2020-04-29 https://zenodo.org/record/4971791 https://doi.org/10.5061/dryad.stqjq2bzv unknown https://zenodo.org/communities/dryad https://zenodo.org/record/4971791 https://doi.org/10.5061/dryad.stqjq2bzv oai:zenodo.org:4971791 info:eu-repo/semantics/openAccess https://creativecommons.org/publicdomain/zero/1.0/legalcode Calanus info:eu-repo/semantics/other dataset 2020 ftzenodo https://doi.org/10.5061/dryad.stqjq2bzv 2023-03-10T14:57:36Z In the North Atlantic and the Arctic Ocean, four species of the copepod genus Calanus dominate the zooplankton biomass. Because of their morphological resemblance, knowledge of their respective distribution range has long been biased by misidentification, until the recent use of molecular tools uncovered numerous areas of sympatry. As hybridization between Calanus finmarchicus and C. glacialis has been claimed in the East-Canadian Arctic based on microsatellites, we investigated further the potential for interbreeding in newly uncovered areas of sympatry. Calanusspecies and stage composition were analyzed during winter in two Norwegian subarctic fjords, using molecular markers developed specifically for species identification and hybrid detection between C. finmarchicus and C. glacialis. Overall, Calanus glacialis were the most abundant throughout the winter, followed by C. finmarchicus and C. hyperboreus with only a few records of C. helgolandicus. The presence of C. glacialis, C. hyperboreus and C. finmarchicus' nauplii was recorded, indicating that these species reproduce locally. In January and February, the simultaneous occurrence of males and females of both C. finmarchicus and C. glacialis suggested a potential for inter-species mating. However, genetic admixture tests performed on all 1126 individuals revealed no signal of hybridization, implying a strong reproductive isolation mechanism. We conclude that no evidence supports a potential for hybridization between C. finmarchicus and C. glacialis and suggest that the initial claim of hybridization between Calanus species may have resulted from the use of non-appropriate molecular tools. The first sheet contains the InDel genotypes from the individuals of developmental stages CIV, CV and CVI sampled in the Skjerstadfjord. The second sheet contains the InDel genotypes from the individuals of developmental stages CIV, CV and CVI sampled in the Mistfjord. The third sheet contains the InDel genotypes from the nauplii sampled in both fjords together. Missing ... Dataset Arctic Arctic Ocean Calanus finmarchicus Calanus glacialis North Atlantic Subarctic Zooplankton Zenodo Arctic Arctic Ocean Indel’ ENVELOPE(35.282,35.282,66.963,66.963) |
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unknown |
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Calanus |
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Calanus Choquet, Marvin Burckard, Gauthier Skreslet, Stig Hoarau, Galice Søreide, Janne E. Calanus InDel genotypes from: No evidence for hybridization between Calanus finmarchicus and C. glacialis in a subarctic area of sympatry |
topic_facet |
Calanus |
description |
In the North Atlantic and the Arctic Ocean, four species of the copepod genus Calanus dominate the zooplankton biomass. Because of their morphological resemblance, knowledge of their respective distribution range has long been biased by misidentification, until the recent use of molecular tools uncovered numerous areas of sympatry. As hybridization between Calanus finmarchicus and C. glacialis has been claimed in the East-Canadian Arctic based on microsatellites, we investigated further the potential for interbreeding in newly uncovered areas of sympatry. Calanusspecies and stage composition were analyzed during winter in two Norwegian subarctic fjords, using molecular markers developed specifically for species identification and hybrid detection between C. finmarchicus and C. glacialis. Overall, Calanus glacialis were the most abundant throughout the winter, followed by C. finmarchicus and C. hyperboreus with only a few records of C. helgolandicus. The presence of C. glacialis, C. hyperboreus and C. finmarchicus' nauplii was recorded, indicating that these species reproduce locally. In January and February, the simultaneous occurrence of males and females of both C. finmarchicus and C. glacialis suggested a potential for inter-species mating. However, genetic admixture tests performed on all 1126 individuals revealed no signal of hybridization, implying a strong reproductive isolation mechanism. We conclude that no evidence supports a potential for hybridization between C. finmarchicus and C. glacialis and suggest that the initial claim of hybridization between Calanus species may have resulted from the use of non-appropriate molecular tools. The first sheet contains the InDel genotypes from the individuals of developmental stages CIV, CV and CVI sampled in the Skjerstadfjord. The second sheet contains the InDel genotypes from the individuals of developmental stages CIV, CV and CVI sampled in the Mistfjord. The third sheet contains the InDel genotypes from the nauplii sampled in both fjords together. Missing ... |
format |
Dataset |
author |
Choquet, Marvin Burckard, Gauthier Skreslet, Stig Hoarau, Galice Søreide, Janne E. |
author_facet |
Choquet, Marvin Burckard, Gauthier Skreslet, Stig Hoarau, Galice Søreide, Janne E. |
author_sort |
Choquet, Marvin |
title |
Calanus InDel genotypes from: No evidence for hybridization between Calanus finmarchicus and C. glacialis in a subarctic area of sympatry |
title_short |
Calanus InDel genotypes from: No evidence for hybridization between Calanus finmarchicus and C. glacialis in a subarctic area of sympatry |
title_full |
Calanus InDel genotypes from: No evidence for hybridization between Calanus finmarchicus and C. glacialis in a subarctic area of sympatry |
title_fullStr |
Calanus InDel genotypes from: No evidence for hybridization between Calanus finmarchicus and C. glacialis in a subarctic area of sympatry |
title_full_unstemmed |
Calanus InDel genotypes from: No evidence for hybridization between Calanus finmarchicus and C. glacialis in a subarctic area of sympatry |
title_sort |
calanus indel genotypes from: no evidence for hybridization between calanus finmarchicus and c. glacialis in a subarctic area of sympatry |
publishDate |
2020 |
url |
https://zenodo.org/record/4971791 https://doi.org/10.5061/dryad.stqjq2bzv |
long_lat |
ENVELOPE(35.282,35.282,66.963,66.963) |
geographic |
Arctic Arctic Ocean Indel’ |
geographic_facet |
Arctic Arctic Ocean Indel’ |
genre |
Arctic Arctic Ocean Calanus finmarchicus Calanus glacialis North Atlantic Subarctic Zooplankton |
genre_facet |
Arctic Arctic Ocean Calanus finmarchicus Calanus glacialis North Atlantic Subarctic Zooplankton |
op_relation |
https://zenodo.org/communities/dryad https://zenodo.org/record/4971791 https://doi.org/10.5061/dryad.stqjq2bzv oai:zenodo.org:4971791 |
op_rights |
info:eu-repo/semantics/openAccess https://creativecommons.org/publicdomain/zero/1.0/legalcode |
op_doi |
https://doi.org/10.5061/dryad.stqjq2bzv |
_version_ |
1766334177600339968 |