Genetic population structure of the pelagic mollusk Limacina helicina in the Kara Sea
Background Pelagic pteropods Limacina helicina are widespread and can play an important role in the food webs and in biosedimentation in Arctic and Subarctic ecosystems. Previous publications have shown differences in the genetic structure of populations of L. helicina from populations found in the...
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crpeerj:10.7717/peerj.5709 2024-09-15T18:16:07+00:00 Genetic population structure of the pelagic mollusk Limacina helicina in the Kara Sea Abyzova, Galina Anatolievna Nikitin, Mikhail Aleksandrovich Popova, Olga Vladimirovna Pasternak, Anna Fedorovna FASO Russia RFBR RSF 2018 http://dx.doi.org/10.7717/peerj.5709 https://peerj.com/articles/5709.pdf https://peerj.com/articles/5709.xml https://peerj.com/articles/5709.html en eng PeerJ http://creativecommons.org/licenses/by/4.0/ PeerJ volume 6, page e5709 ISSN 2167-8359 journal-article 2018 crpeerj https://doi.org/10.7717/peerj.5709 2024-08-06T04:11:13Z Background Pelagic pteropods Limacina helicina are widespread and can play an important role in the food webs and in biosedimentation in Arctic and Subarctic ecosystems. Previous publications have shown differences in the genetic structure of populations of L. helicina from populations found in the Pacific Ocean and Svalbard area. Currently, there are no data on the genetic structure of L. helicina populations in the seas of the Siberian Arctic. We assessed the genetic structure of L. helicina from the Kara Sea populations and compared them with samples from around Svalbard and the North Pacific. Methods We examined genetic differences in L. helicina from three different locations in the Kara Sea via analysis of a fragment of the mitochondrial gene COI. We also compared a subset of samples with L. helicina from previous studies to find connections between populations from the Atlantic and Pacific Oceans. Results 65 individual L. helinica from the Kara Sea were sequenced to produce 19 different haplotypes. This is comparable with numbers of haplotypes found in Svalbard and Pacific samples (24 and 25, respectively). Haplotypes from different locations sampled around the Arctic and Subarctic were combined into two different groups: H1 and H2. The H2 includes sequences from the Kara Sea and Svalbard, was present only in the Atlantic sector of the Arctic. The other genetic group, H1, is widespread and found throughout all L. helicina populations. ϕ ST analyses also indicated significant genetic difference between the Atlantic and Pacific regions, but no differences between Svalbard and the Kara Sea. Discussion The obtained results support our hypothesis about genetic similarity of L. helicina populations from the Kara Sea and Svalbard: the majority of haplotypes belongs to the haplotype group H2, with the H1 group representing a minority of the haplotypes present. In contrast, in the Canadian Arctic and the Pacific Ocean only haplogroup H1 is found. The negative values of Fu’s Fs indicate directed selection or ... Article in Journal/Newspaper Kara Sea Limacina helicina Subarctic Svalbard PeerJ Publishing PeerJ 6 e5709 |
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PeerJ Publishing |
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crpeerj |
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English |
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Background Pelagic pteropods Limacina helicina are widespread and can play an important role in the food webs and in biosedimentation in Arctic and Subarctic ecosystems. Previous publications have shown differences in the genetic structure of populations of L. helicina from populations found in the Pacific Ocean and Svalbard area. Currently, there are no data on the genetic structure of L. helicina populations in the seas of the Siberian Arctic. We assessed the genetic structure of L. helicina from the Kara Sea populations and compared them with samples from around Svalbard and the North Pacific. Methods We examined genetic differences in L. helicina from three different locations in the Kara Sea via analysis of a fragment of the mitochondrial gene COI. We also compared a subset of samples with L. helicina from previous studies to find connections between populations from the Atlantic and Pacific Oceans. Results 65 individual L. helinica from the Kara Sea were sequenced to produce 19 different haplotypes. This is comparable with numbers of haplotypes found in Svalbard and Pacific samples (24 and 25, respectively). Haplotypes from different locations sampled around the Arctic and Subarctic were combined into two different groups: H1 and H2. The H2 includes sequences from the Kara Sea and Svalbard, was present only in the Atlantic sector of the Arctic. The other genetic group, H1, is widespread and found throughout all L. helicina populations. ϕ ST analyses also indicated significant genetic difference between the Atlantic and Pacific regions, but no differences between Svalbard and the Kara Sea. Discussion The obtained results support our hypothesis about genetic similarity of L. helicina populations from the Kara Sea and Svalbard: the majority of haplotypes belongs to the haplotype group H2, with the H1 group representing a minority of the haplotypes present. In contrast, in the Canadian Arctic and the Pacific Ocean only haplogroup H1 is found. The negative values of Fu’s Fs indicate directed selection or ... |
author2 |
FASO Russia RFBR RSF |
format |
Article in Journal/Newspaper |
author |
Abyzova, Galina Anatolievna Nikitin, Mikhail Aleksandrovich Popova, Olga Vladimirovna Pasternak, Anna Fedorovna |
spellingShingle |
Abyzova, Galina Anatolievna Nikitin, Mikhail Aleksandrovich Popova, Olga Vladimirovna Pasternak, Anna Fedorovna Genetic population structure of the pelagic mollusk Limacina helicina in the Kara Sea |
author_facet |
Abyzova, Galina Anatolievna Nikitin, Mikhail Aleksandrovich Popova, Olga Vladimirovna Pasternak, Anna Fedorovna |
author_sort |
Abyzova, Galina Anatolievna |
title |
Genetic population structure of the pelagic mollusk Limacina helicina in the Kara Sea |
title_short |
Genetic population structure of the pelagic mollusk Limacina helicina in the Kara Sea |
title_full |
Genetic population structure of the pelagic mollusk Limacina helicina in the Kara Sea |
title_fullStr |
Genetic population structure of the pelagic mollusk Limacina helicina in the Kara Sea |
title_full_unstemmed |
Genetic population structure of the pelagic mollusk Limacina helicina in the Kara Sea |
title_sort |
genetic population structure of the pelagic mollusk limacina helicina in the kara sea |
publisher |
PeerJ |
publishDate |
2018 |
url |
http://dx.doi.org/10.7717/peerj.5709 https://peerj.com/articles/5709.pdf https://peerj.com/articles/5709.xml https://peerj.com/articles/5709.html |
genre |
Kara Sea Limacina helicina Subarctic Svalbard |
genre_facet |
Kara Sea Limacina helicina Subarctic Svalbard |
op_source |
PeerJ volume 6, page e5709 ISSN 2167-8359 |
op_rights |
http://creativecommons.org/licenses/by/4.0/ |
op_doi |
https://doi.org/10.7717/peerj.5709 |
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PeerJ |
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6 |
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e5709 |
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1810454099966033920 |