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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Main Authors: Zograf, Julia K., Semenchenko, Alexander A., Mordukhovich, Vladimir V.
Format: Article in Journal/Newspaper
Language:unknown
Published: Pensoft Publishers 2024
Subjects:
Biota
Animalia
Nematoda
Enoplea
Dorylaimia
Marimermithida
Marimermithidae
Aborjinia
Chordata
Vertebrata
Gnathostomata
Osteichthyes
Sarcopterygii
Tetrapoda
Amniota
Aves
Leptosomiformes
Leptosomidae
Enoplia
Enoplida
Ironina
Ironoidea
Leptosomatidae
DNA barcoding
free-living nematodes
Kuril-Kamchatka Trench
phylogenetic relationships
scanning electron microscopy
Kamchatka
Online Access:https://doi.org/10.3897/zookeys.1189.111825
id ftzenodo:oai:zenodo.org:10532863
record_format openpolar
institution Open Polar
collection Zenodo
op_collection_id ftzenodo
language unknown
topic Biota
Animalia
Nematoda
Enoplea
Dorylaimia
Marimermithida
Marimermithidae
Aborjinia
Chordata
Vertebrata
Gnathostomata
Osteichthyes
Sarcopterygii
Tetrapoda
Amniota
Aves
Leptosomiformes
Leptosomidae
Enoplia
Enoplida
Ironina
Ironoidea
Leptosomatidae
DNA barcoding
free-living nematodes
Kuril-Kamchatka Trench
phylogenetic relationships
scanning electron microscopy
spellingShingle Biota
Animalia
Nematoda
Enoplea
Dorylaimia
Marimermithida
Marimermithidae
Aborjinia
Chordata
Vertebrata
Gnathostomata
Osteichthyes
Sarcopterygii
Tetrapoda
Amniota
Aves
Leptosomiformes
Leptosomidae
Enoplia
Enoplida
Ironina
Ironoidea
Leptosomatidae
DNA barcoding
free-living nematodes
Kuril-Kamchatka Trench
phylogenetic relationships
scanning electron microscopy
Zograf, Julia K.
Semenchenko, Alexander A.
Mordukhovich, Vladimir V.
New deep-sea species of Aborjinia (Nematoda, Leptosomatidae) from the North-Western Pacific: an integrative taxonomy and phylogeny
topic_facet Biota
Animalia
Nematoda
Enoplea
Dorylaimia
Marimermithida
Marimermithidae
Aborjinia
Chordata
Vertebrata
Gnathostomata
Osteichthyes
Sarcopterygii
Tetrapoda
Amniota
Aves
Leptosomiformes
Leptosomidae
Enoplia
Enoplida
Ironina
Ironoidea
Leptosomatidae
DNA barcoding
free-living nematodes
Kuril-Kamchatka Trench
phylogenetic relationships
scanning electron microscopy
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 Zograf, Julia K.
Semenchenko, Alexander A.
Mordukhovich, Vladimir V.
author_facet Zograf, Julia K.
Semenchenko, Alexander A.
Mordukhovich, Vladimir V.
author_sort Zograf, Julia K.
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
genre Kamchatka
genre_facet Kamchatka
op_source ZooKeys, 1189, 231-256, (2024-01-17)
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Creative Commons Attribution 4.0 International
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spelling ftzenodo:oai:zenodo.org:10532863 2024-09-15T18:15:55+00:00 New deep-sea species of Aborjinia (Nematoda, Leptosomatidae) from the North-Western Pacific: an integrative taxonomy and phylogeny Zograf, Julia K. Semenchenko, Alexander A. Mordukhovich, Vladimir V. 2024-01-17 https://doi.org/10.3897/zookeys.1189.111825 unknown Pensoft Publishers https://doi.org/10.3897/zookeys.1189.111825.figure7 https://doi.org/10.3897/zookeys.1189.111825.figure1 https://doi.org/10.3897/zookeys.1189.111825.figure9 https://doi.org/10.3897/zookeys.1189.111825.figure10 https://doi.org/10.3897/zookeys.1189.111825.figure6 https://doi.org/10.3897/zookeys.1189.111825.figure2 https://doi.org/10.3897/zookeys.1189.111825.figure5 https://doi.org/10.3897/zookeys.1189.111825.figure3 https://doi.org/10.3897/zookeys.1189.111825.figure4 https://doi.org/10.3897/zookeys.1189.111825.figure8 https://doi.org/10.3897/zookeys.1189.111825.suppl3 https://doi.org/10.3897/zookeys.1189.111825.suppl1 https://doi.org/10.3897/zookeys.1189.111825.suppl2 https://doi.org/10.1007/s00239-009-9260-3 https://doi.org/10.1093/molbev/msv174 https://doi.org/10.1038/32160 https://doi.org/10.1186/1471-2148-11-262 https://doi.org/10.1016/j.ympev.2008.10.008 https://doi.org/10.1111/j.1471-8286.2005.01009.x https://doi.org/10.1093/molbev/msx281 https://doi.org/10.2307/3224598 https://doi.org/10.3109/10520297409116929 https://doi.org/10.1038/nmeth.4285 https://doi.org/10.1093/molbev/msw054 https://doi.org/10.1093/molbev/mss020 https://doi.org/10.1016/j.ympev.2018.12.005 https://doi.org/10.1007/978-1-62703-646-7_7 https://doi.org/10.1016/j.ympev.2006.08.025 https://doi.org/10.1163/156854103767139752 https://doi.org/10.1515/9783110274257.345 https://doi.org/10.1093/molbev/msaa015 https://doi.org/10.1016/j.pocean.2019.102160 https://doi.org/10.1051/parasite/1980552209 https://doi.org/10.1186/1471-2105-11-129 https://doi.org/10.1093/sysbio/sys029 https://doi.org/10.1186/1756-0500-1-91 https://doi.org/10.1163/187529259X00381 https://doi.org/10.1515/9783110274257.193 https://doi.org/10.1093/zoolinnean/zlac070 https://doi.org/10.2307/3271583 https://doi.org/10.1007/s11230-021-09996-y https://doi.org/10.1371/journal.pone.0066726 https://doi.org/10.1016/S1055-7903(03)00178-7 https://doi.org/10.1016/j.jmb.2017.12.007 https://zenodo.org/communities/biosyslit https://doi.org/10.3897/zookeys.1189.111825 oai:zenodo.org:10532863 info:eu-repo/semantics/openAccess Creative Commons Attribution 4.0 International https://creativecommons.org/licenses/by/4.0/legalcode ZooKeys, 1189, 231-256, (2024-01-17) Biota Animalia Nematoda Enoplea Dorylaimia Marimermithida Marimermithidae Aborjinia Chordata Vertebrata Gnathostomata Osteichthyes Sarcopterygii Tetrapoda Amniota Aves Leptosomiformes Leptosomidae Enoplia Enoplida Ironina Ironoidea Leptosomatidae DNA barcoding free-living nematodes Kuril-Kamchatka Trench phylogenetic relationships scanning electron microscopy info:eu-repo/semantics/article 2024 ftzenodo https://doi.org/10.3897/zookeys.1189.11182510.3897/zookeys.1189.111825.figure710.3897/zookeys.1189.111825.figure110.3897/zookeys.1189.111825.figure910.3897/zookeys.1189.111825.figure1010.3897/zookeys.1189.111825.figure610.3897/zookeys.1189.111825.figure21 2024-07-27T01:24:31Z 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 Zenodo

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