Phylogenetic relationship within Cumacea (Crustacea: Peracarida) and genetic variability of two Antarctic species of the family Leuconidae
Phylogenetic hypotheses for the peracarid order Cumacea are scarce and have not provided a solution to the full extent. In the present study, a fragment of the mitochondrial 16S rDNA was used to erect a phylogenetic hypothesis for three cumacean families, Diastylidae, Bodotriidae and Leuconidae, alo...
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ftawi:oai:epic.awi.de:53119 2024-09-15T17:47:06+00:00 Phylogenetic relationship within Cumacea (Crustacea: Peracarida) and genetic variability of two Antarctic species of the family Leuconidae Rehm, Peter Thatje, Sven Leese, Florian Held, Christoph 2020 application/pdf https://epic.awi.de/id/eprint/53119/ https://epic.awi.de/id/eprint/53119/1/rehm.pdf https://doi.org/10.3989/scimar.05053.17A https://hdl.handle.net/10013/epic.17b7159f-bb52-41df-8b9a-ebb4dea4dafd unknown https://epic.awi.de/id/eprint/53119/1/rehm.pdf Rehm, P. , Thatje, S. , Leese, F. and Held, C. orcid:0000-0001-8854-3234 (2020) Phylogenetic relationship within Cumacea (Crustacea: Peracarida) and genetic variability of two Antarctic species of the family Leuconidae , Scientia Marina, 84 (4) . doi:10.3989/scimar.05053.17A <https://doi.org/10.3989/scimar.05053.17A> , hdl:10013/epic.17b7159f-bb52-41df-8b9a-ebb4dea4dafd EPIC3Scientia Marina, 84(4), ISSN: 0214-8358 Article peerRev 2020 ftawi https://doi.org/10.3989/scimar.05053.17A 2024-06-24T04:26:11Z Phylogenetic hypotheses for the peracarid order Cumacea are scarce and have not provided a solution to the full extent. In the present study, a fragment of the mitochondrial 16S rDNA was used to erect a phylogenetic hypothesis for three cumacean families, Diastylidae, Bodotriidae and Leuconidae, along with intra-family relationships of the latter. The Cumacea resolved monophyletic with tanaids and isopods as outgroup taxa. The Diastylidae were the only family with good support for monophyly. The genus Leucon resolved paraphyletic, whereas the subgenus Crymoleucon was monophyletic. Furthermore, the genetic structure was analysed for two leuconid species, Leucon antarcticus Zimmer, 1907 and L. intermedius Mühlenhardt-Siegel, 1996, from the Weddell Sea and the Ross Sea. The two species showed different patterns of intraspecific genetic variability. In contrast to L. intermedius, a bimodal distribution of pairwise genetic distances was observed for L. antarcticus, which is correlated with geographical and depth distributions between the Ross Sea and the Weddell Sea. Although a clear evaluation of cryptic speciation in these species requires additional work on more specimens from more geographic regions and broader depth ranges, differences shown in the sequences of 16S rDNA can only be explained by genetic separation of populations between the Weddell Sea and the Ross Sea for an extended period of time. Article in Journal/Newspaper Antarc* Antarctic antarcticus Ross Sea Weddell Sea Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center) Scientia Marina 84 4 385 392 |
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Open Polar |
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Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center) |
op_collection_id |
ftawi |
language |
unknown |
description |
Phylogenetic hypotheses for the peracarid order Cumacea are scarce and have not provided a solution to the full extent. In the present study, a fragment of the mitochondrial 16S rDNA was used to erect a phylogenetic hypothesis for three cumacean families, Diastylidae, Bodotriidae and Leuconidae, along with intra-family relationships of the latter. The Cumacea resolved monophyletic with tanaids and isopods as outgroup taxa. The Diastylidae were the only family with good support for monophyly. The genus Leucon resolved paraphyletic, whereas the subgenus Crymoleucon was monophyletic. Furthermore, the genetic structure was analysed for two leuconid species, Leucon antarcticus Zimmer, 1907 and L. intermedius Mühlenhardt-Siegel, 1996, from the Weddell Sea and the Ross Sea. The two species showed different patterns of intraspecific genetic variability. In contrast to L. intermedius, a bimodal distribution of pairwise genetic distances was observed for L. antarcticus, which is correlated with geographical and depth distributions between the Ross Sea and the Weddell Sea. Although a clear evaluation of cryptic speciation in these species requires additional work on more specimens from more geographic regions and broader depth ranges, differences shown in the sequences of 16S rDNA can only be explained by genetic separation of populations between the Weddell Sea and the Ross Sea for an extended period of time. |
format |
Article in Journal/Newspaper |
author |
Rehm, Peter Thatje, Sven Leese, Florian Held, Christoph |
spellingShingle |
Rehm, Peter Thatje, Sven Leese, Florian Held, Christoph Phylogenetic relationship within Cumacea (Crustacea: Peracarida) and genetic variability of two Antarctic species of the family Leuconidae |
author_facet |
Rehm, Peter Thatje, Sven Leese, Florian Held, Christoph |
author_sort |
Rehm, Peter |
title |
Phylogenetic relationship within Cumacea (Crustacea: Peracarida) and genetic variability of two Antarctic species of the family Leuconidae |
title_short |
Phylogenetic relationship within Cumacea (Crustacea: Peracarida) and genetic variability of two Antarctic species of the family Leuconidae |
title_full |
Phylogenetic relationship within Cumacea (Crustacea: Peracarida) and genetic variability of two Antarctic species of the family Leuconidae |
title_fullStr |
Phylogenetic relationship within Cumacea (Crustacea: Peracarida) and genetic variability of two Antarctic species of the family Leuconidae |
title_full_unstemmed |
Phylogenetic relationship within Cumacea (Crustacea: Peracarida) and genetic variability of two Antarctic species of the family Leuconidae |
title_sort |
phylogenetic relationship within cumacea (crustacea: peracarida) and genetic variability of two antarctic species of the family leuconidae |
publishDate |
2020 |
url |
https://epic.awi.de/id/eprint/53119/ https://epic.awi.de/id/eprint/53119/1/rehm.pdf https://doi.org/10.3989/scimar.05053.17A https://hdl.handle.net/10013/epic.17b7159f-bb52-41df-8b9a-ebb4dea4dafd |
genre |
Antarc* Antarctic antarcticus Ross Sea Weddell Sea |
genre_facet |
Antarc* Antarctic antarcticus Ross Sea Weddell Sea |
op_source |
EPIC3Scientia Marina, 84(4), ISSN: 0214-8358 |
op_relation |
https://epic.awi.de/id/eprint/53119/1/rehm.pdf Rehm, P. , Thatje, S. , Leese, F. and Held, C. orcid:0000-0001-8854-3234 (2020) Phylogenetic relationship within Cumacea (Crustacea: Peracarida) and genetic variability of two Antarctic species of the family Leuconidae , Scientia Marina, 84 (4) . doi:10.3989/scimar.05053.17A <https://doi.org/10.3989/scimar.05053.17A> , hdl:10013/epic.17b7159f-bb52-41df-8b9a-ebb4dea4dafd |
op_doi |
https://doi.org/10.3989/scimar.05053.17A |
container_title |
Scientia Marina |
container_volume |
84 |
container_issue |
4 |
container_start_page |
385 |
op_container_end_page |
392 |
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1810495726597177344 |