New deep-sea species of Aborjinia (Nematoda, Leptosomatidae) from the North-Western Pacific: an integrative taxonomy and phylogeny
Marimermithid nematodes parasitising invertebrates are mainly found in the deep-sea environments. Several adult and juvenile specimens marimermithids of the genus Aborjinia have been found in bottom sediments and inside Polychaeta during recent cruises to the Kuril-Kamchatka trench and the Kuril Bas...
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2024
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ftdoajarticles:oai:doaj.org/article:9ee09467a89d44ceadb1f31246057c93 2024-02-11T10:05:24+01:00 New deep-sea species of Aborjinia (Nematoda, Leptosomatidae) from the North-Western Pacific: an integrative taxonomy and phylogeny Julia K. Zograf Alexander A. Semenchenko Vladimir V. Mordukhovich 2024-01-01T00:00:00Z https://doi.org/10.3897/zookeys.1189.111825 https://doaj.org/article/9ee09467a89d44ceadb1f31246057c93 EN eng Pensoft Publishers https://zookeys.pensoft.net/article/111825/download/pdf/ https://zookeys.pensoft.net/article/111825/download/xml/ https://zookeys.pensoft.net/article/111825/ https://doaj.org/toc/1313-2970 doi:10.3897/zookeys.1189.111825 1313-2970 https://doaj.org/article/9ee09467a89d44ceadb1f31246057c93 ZooKeys, Vol 1189, Iss , Pp 231-256 (2024) Zoology QL1-991 article 2024 ftdoajarticles https://doi.org/10.3897/zookeys.1189.111825 2024-01-21T01:35:48Z Marimermithid nematodes parasitising invertebrates are mainly found in the deep-sea environments. Several adult and juvenile specimens marimermithids of the genus Aborjinia have been found in bottom sediments and inside Polychaeta during recent cruises to the Kuril-Kamchatka trench and the Kuril Basin (the Sea of Okhotsk). New species are described based on integrative study. Aborjinia profunda sp. nov. differs from A. eulagiscae by the location of the ventral gland cell bodies (posterior to the nerve ring vs posterior to the cardia), by the smaller body size (23–28 mm vs 103–132 mm) and shorter tail (193–263 µm vs 500–850 µm). BI and ML phylogenetic analyses based on 18S and 28S rDNA suggest that genus Aborjinia belongs to the family Leptosomatidae. Based on molecular and morphological characters the new genus Paraborjinia gen. nov. is proposed for A. corallicola. Within the family Leptosomatidae the new genus differs from all genera except Aborjinia by its endoparasitic lifestyle and hologonic ovaries. Paraborjinia gen. nov. differs from Aborjinia by the position of cephalic sensitive organs (outer labial and cephalic papillae in two separate circles vs outer labial and cephalic papillae in one circle) and by the parasitic adult (vs free-living in Aborjinia). Article in Journal/Newspaper Kamchatka Directory of Open Access Journals: DOAJ Articles Okhotsk Pacific ZooKeys 1189 231 256 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
Zoology QL1-991 |
spellingShingle |
Zoology QL1-991 Julia K. Zograf Alexander A. Semenchenko Vladimir V. Mordukhovich New deep-sea species of Aborjinia (Nematoda, Leptosomatidae) from the North-Western Pacific: an integrative taxonomy and phylogeny |
topic_facet |
Zoology QL1-991 |
description |
Marimermithid nematodes parasitising invertebrates are mainly found in the deep-sea environments. Several adult and juvenile specimens marimermithids of the genus Aborjinia have been found in bottom sediments and inside Polychaeta during recent cruises to the Kuril-Kamchatka trench and the Kuril Basin (the Sea of Okhotsk). New species are described based on integrative study. Aborjinia profunda sp. nov. differs from A. eulagiscae by the location of the ventral gland cell bodies (posterior to the nerve ring vs posterior to the cardia), by the smaller body size (23–28 mm vs 103–132 mm) and shorter tail (193–263 µm vs 500–850 µm). BI and ML phylogenetic analyses based on 18S and 28S rDNA suggest that genus Aborjinia belongs to the family Leptosomatidae. Based on molecular and morphological characters the new genus Paraborjinia gen. nov. is proposed for A. corallicola. Within the family Leptosomatidae the new genus differs from all genera except Aborjinia by its endoparasitic lifestyle and hologonic ovaries. Paraborjinia gen. nov. differs from Aborjinia by the position of cephalic sensitive organs (outer labial and cephalic papillae in two separate circles vs outer labial and cephalic papillae in one circle) and by the parasitic adult (vs free-living in Aborjinia). |
format |
Article in Journal/Newspaper |
author |
Julia K. Zograf Alexander A. Semenchenko Vladimir V. Mordukhovich |
author_facet |
Julia K. Zograf Alexander A. Semenchenko Vladimir V. Mordukhovich |
author_sort |
Julia K. Zograf |
title |
New deep-sea species of Aborjinia (Nematoda, Leptosomatidae) from the North-Western Pacific: an integrative taxonomy and phylogeny |
title_short |
New deep-sea species of Aborjinia (Nematoda, Leptosomatidae) from the North-Western Pacific: an integrative taxonomy and phylogeny |
title_full |
New deep-sea species of Aborjinia (Nematoda, Leptosomatidae) from the North-Western Pacific: an integrative taxonomy and phylogeny |
title_fullStr |
New deep-sea species of Aborjinia (Nematoda, Leptosomatidae) from the North-Western Pacific: an integrative taxonomy and phylogeny |
title_full_unstemmed |
New deep-sea species of Aborjinia (Nematoda, Leptosomatidae) from the North-Western Pacific: an integrative taxonomy and phylogeny |
title_sort |
new deep-sea species of aborjinia (nematoda, leptosomatidae) from the north-western pacific: an integrative taxonomy and phylogeny |
publisher |
Pensoft Publishers |
publishDate |
2024 |
url |
https://doi.org/10.3897/zookeys.1189.111825 https://doaj.org/article/9ee09467a89d44ceadb1f31246057c93 |
geographic |
Okhotsk Pacific |
geographic_facet |
Okhotsk Pacific |
genre |
Kamchatka |
genre_facet |
Kamchatka |
op_source |
ZooKeys, Vol 1189, Iss , Pp 231-256 (2024) |
op_relation |
https://zookeys.pensoft.net/article/111825/download/pdf/ https://zookeys.pensoft.net/article/111825/download/xml/ https://zookeys.pensoft.net/article/111825/ https://doaj.org/toc/1313-2970 doi:10.3897/zookeys.1189.111825 1313-2970 https://doaj.org/article/9ee09467a89d44ceadb1f31246057c93 |
op_doi |
https://doi.org/10.3897/zookeys.1189.111825 |
container_title |
ZooKeys |
container_volume |
1189 |
container_start_page |
231 |
op_container_end_page |
256 |
_version_ |
1790602436979720192 |