Two new xylophile cytheroid ostracods (Crustacea) from Kuril-Kamchatka Trench, with remarks on the systematics and phylogeny of the family Keysercytheridae, Limnocytheridae, and Paradoxostomatidae
Keysercythere reticulata sp. nov. and Redekea abyssalis sp. nov. , collected from the wood fall submerged in the Kuril-Kamchatka Trench (Northwestern Pacific), are only the second records of the naturally occurring, wood-associated ostracod fauna from a depth of over 5000 m. At the same time, K. ret...
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Senckenberg Gesellschaft fuer Naturforschung, Senckenberg Nature Research Society
2021
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Online Access: | https://doi.org/10.3897/ASP.79.E62282 http://ecite.utas.edu.au/151503 |
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ftunivtasecite:oai:ecite.utas.edu.au:151503 2023-05-15T16:59:00+02:00 Two new xylophile cytheroid ostracods (Crustacea) from Kuril-Kamchatka Trench, with remarks on the systematics and phylogeny of the family Keysercytheridae, Limnocytheridae, and Paradoxostomatidae Tanaka, H Yoo, H Pham, HTM Karanovic, I 2021 application/pdf https://doi.org/10.3897/ASP.79.E62282 http://ecite.utas.edu.au/151503 en eng Senckenberg Gesellschaft fuer Naturforschung, Senckenberg Nature Research Society http://ecite.utas.edu.au/151503/1/151503 - Two new xylophile cytheroid ostracods.pdf http://dx.doi.org/10.3897/ASP.79.E62282 Tanaka, H and Yoo, H and Pham, HTM and Karanovic, I, Two new xylophile cytheroid ostracods (Crustacea) from Kuril-Kamchatka Trench, with remarks on the systematics and phylogeny of the family Keysercytheridae, Limnocytheridae, and Paradoxostomatidae, Arthropod Systematics and Phylogeny, 79 pp. 171-188. ISSN 1863-7221 (2021) [Refereed Article] http://ecite.utas.edu.au/151503 Biological Sciences Evolutionary biology Animal systematics and taxonomy Refereed Article PeerReviewed 2021 ftunivtasecite https://doi.org/10.3897/ASP.79.E62282 2022-11-07T23:17:21Z Keysercythere reticulata sp. nov. and Redekea abyssalis sp. nov. , collected from the wood fall submerged in the Kuril-Kamchatka Trench (Northwestern Pacific), are only the second records of the naturally occurring, wood-associated ostracod fauna from a depth of over 5000 m. At the same time, K. reticulata is the second and R. abyssalis is the third representative of their respective genera. While Keysercythere Karanovic and Brando, 2015 species are free-living, deep-sea taxa, all Redekea de Vos, 1953 live symbiotically on the body surface of wood-boring isopods, Limnoria spp. Since R. abyssalis is the only genus representative found in the deep sea, we hypothesize that its ancestor colonized this ecosystem as a result of the symbiotic relationship. Newly collected material enabled us to update molecular phylogeny of Cythreoidea based on 18S rRNA gene sequences, especially to clarify the current systematics of the families Keysercytheridae , Limnocytheridae , and Paradoxostomatidae . The resulting phylogenetic tree supports a close relationship between Keysercythere and Redekea and a distant relationship between two Limnocytheridae lineages, Timiriaseviinae and Limnocytherinae . Consequently, we propose a transfer of Redekea from Paradoxostomatidae to Keysercytheridae , and erecting of the two limnocytherid subfamilies onto the family level. The phylogenetic analysis also implies a close relationship between the nominal Limnocytherinae genus and Keysercythere + Redekea clade, albeit with a low posterior probability, requiring further studies to clarify this. Article in Journal/Newspaper Kamchatka eCite UTAS (University of Tasmania) Pacific Arthropod Systematics & Phylogeny 79 171 188 |
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Open Polar |
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eCite UTAS (University of Tasmania) |
op_collection_id |
ftunivtasecite |
language |
English |
topic |
Biological Sciences Evolutionary biology Animal systematics and taxonomy |
spellingShingle |
Biological Sciences Evolutionary biology Animal systematics and taxonomy Tanaka, H Yoo, H Pham, HTM Karanovic, I Two new xylophile cytheroid ostracods (Crustacea) from Kuril-Kamchatka Trench, with remarks on the systematics and phylogeny of the family Keysercytheridae, Limnocytheridae, and Paradoxostomatidae |
topic_facet |
Biological Sciences Evolutionary biology Animal systematics and taxonomy |
description |
Keysercythere reticulata sp. nov. and Redekea abyssalis sp. nov. , collected from the wood fall submerged in the Kuril-Kamchatka Trench (Northwestern Pacific), are only the second records of the naturally occurring, wood-associated ostracod fauna from a depth of over 5000 m. At the same time, K. reticulata is the second and R. abyssalis is the third representative of their respective genera. While Keysercythere Karanovic and Brando, 2015 species are free-living, deep-sea taxa, all Redekea de Vos, 1953 live symbiotically on the body surface of wood-boring isopods, Limnoria spp. Since R. abyssalis is the only genus representative found in the deep sea, we hypothesize that its ancestor colonized this ecosystem as a result of the symbiotic relationship. Newly collected material enabled us to update molecular phylogeny of Cythreoidea based on 18S rRNA gene sequences, especially to clarify the current systematics of the families Keysercytheridae , Limnocytheridae , and Paradoxostomatidae . The resulting phylogenetic tree supports a close relationship between Keysercythere and Redekea and a distant relationship between two Limnocytheridae lineages, Timiriaseviinae and Limnocytherinae . Consequently, we propose a transfer of Redekea from Paradoxostomatidae to Keysercytheridae , and erecting of the two limnocytherid subfamilies onto the family level. The phylogenetic analysis also implies a close relationship between the nominal Limnocytherinae genus and Keysercythere + Redekea clade, albeit with a low posterior probability, requiring further studies to clarify this. |
format |
Article in Journal/Newspaper |
author |
Tanaka, H Yoo, H Pham, HTM Karanovic, I |
author_facet |
Tanaka, H Yoo, H Pham, HTM Karanovic, I |
author_sort |
Tanaka, H |
title |
Two new xylophile cytheroid ostracods (Crustacea) from Kuril-Kamchatka Trench, with remarks on the systematics and phylogeny of the family Keysercytheridae, Limnocytheridae, and Paradoxostomatidae |
title_short |
Two new xylophile cytheroid ostracods (Crustacea) from Kuril-Kamchatka Trench, with remarks on the systematics and phylogeny of the family Keysercytheridae, Limnocytheridae, and Paradoxostomatidae |
title_full |
Two new xylophile cytheroid ostracods (Crustacea) from Kuril-Kamchatka Trench, with remarks on the systematics and phylogeny of the family Keysercytheridae, Limnocytheridae, and Paradoxostomatidae |
title_fullStr |
Two new xylophile cytheroid ostracods (Crustacea) from Kuril-Kamchatka Trench, with remarks on the systematics and phylogeny of the family Keysercytheridae, Limnocytheridae, and Paradoxostomatidae |
title_full_unstemmed |
Two new xylophile cytheroid ostracods (Crustacea) from Kuril-Kamchatka Trench, with remarks on the systematics and phylogeny of the family Keysercytheridae, Limnocytheridae, and Paradoxostomatidae |
title_sort |
two new xylophile cytheroid ostracods (crustacea) from kuril-kamchatka trench, with remarks on the systematics and phylogeny of the family keysercytheridae, limnocytheridae, and paradoxostomatidae |
publisher |
Senckenberg Gesellschaft fuer Naturforschung, Senckenberg Nature Research Society |
publishDate |
2021 |
url |
https://doi.org/10.3897/ASP.79.E62282 http://ecite.utas.edu.au/151503 |
geographic |
Pacific |
geographic_facet |
Pacific |
genre |
Kamchatka |
genre_facet |
Kamchatka |
op_relation |
http://ecite.utas.edu.au/151503/1/151503 - Two new xylophile cytheroid ostracods.pdf http://dx.doi.org/10.3897/ASP.79.E62282 Tanaka, H and Yoo, H and Pham, HTM and Karanovic, I, Two new xylophile cytheroid ostracods (Crustacea) from Kuril-Kamchatka Trench, with remarks on the systematics and phylogeny of the family Keysercytheridae, Limnocytheridae, and Paradoxostomatidae, Arthropod Systematics and Phylogeny, 79 pp. 171-188. ISSN 1863-7221 (2021) [Refereed Article] http://ecite.utas.edu.au/151503 |
op_doi |
https://doi.org/10.3897/ASP.79.E62282 |
container_title |
Arthropod Systematics & Phylogeny |
container_volume |
79 |
container_start_page |
171 |
op_container_end_page |
188 |
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1766051151296331776 |