New data on two remarkable Antarctic species Amblydorylaimus isokaryon (Loof, 1975) Andrássy, 1998 and Pararhyssocolpus paradoxus (Loof, 1975), gen. n., comb. n. (Nematoda, Dorylaimida)
The taxonomic position of two antarctic dorylaimid species Amblydorylaimus isokaryon (Loof, 1975) Andrássy, 1998 and Pararhyssocolpus paradoxus (Loof, 1975), gen. n., comb. n. are discussed on the basis of morphological, including SEM study, morphometric, postembryonic and sequence data of 18S rDNA...
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2015
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Online Access: | https://doi.org/10.3897/zookeys.511.9793 |
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ftzenodo:oai:zenodo.org:578920 2024-09-15T17:44:02+00:00 New data on two remarkable Antarctic species Amblydorylaimus isokaryon (Loof, 1975) Andrássy, 1998 and Pararhyssocolpus paradoxus (Loof, 1975), gen. n., comb. n. (Nematoda, Dorylaimida) Elshishka, Milka Lazarova, Stela Radoslavov, Georgi Hristov, Peter Peneva, Vlada 2015-07-02 https://doi.org/10.3897/zookeys.511.9793 unknown Zenodo https://zenodo.org/communities/biosyslit https://doi.org/10.3897/zookeys.511.9793 oai:zenodo.org:578920 info:eu-repo/semantics/openAccess Creative Commons Attribution 4.0 International https://creativecommons.org/licenses/by/4.0/legalcode ZooKeys, 511, 25-68, (2015-07-02) Animalia NematodaAnimalia Nematoda Adenophorea Dorylaimida 18S rDNA D2-D3 28S rDNA morphology new geographic records nomenclature SEM taxonomy info:eu-repo/semantics/article 2015 ftzenodo https://doi.org/10.3897/zookeys.511.9793 2024-07-27T07:44:37Z The taxonomic position of two antarctic dorylaimid species Amblydorylaimus isokaryon (Loof, 1975) Andrássy, 1998 and Pararhyssocolpus paradoxus (Loof, 1975), gen. n., comb. n. are discussed on the basis of morphological, including SEM study, morphometric, postembryonic and sequence data of 18S rDNA and the D2-D3 expansion fragments of large subunit rDNA. The evolutionary trees inferred from 18S sequences show insufficient resolution to determine the assignment of the two species to particular families, moreover P. paradoxus gen. n., comb. n. (=Rhyssocolpus paradoxus) previously regarded as a member of Nordiidae or Qudsianematidae, showed distant relationship both to Rhyssocolpus vinciguerrae and Eudorylaimus spp. The phylogram inferred from 28S sequences revealed that A. isokaryon is a member of a well-supported group comprised of several Aporcelaimellus spp., while, no close relationships could be revealed for the P. paradoxus gen. n., comb. n. to any nematode genus. On the basis of molecular data and morphological characteristics, some taxonomic changes are proposed. Amblydorylaimus isokaryon is transferred from family Qudsianematidae to family Aporcelaimidae, and a new monotypic genus Pararhyssocolpus gen. n. is proposed, attributed to Pararhyssocolpidae fam. n. The diagnosis of the new family is provided together with emended diagnosis of the genera Amblydorylaimus and Pararhyssocolpus gen. n. Data concerning distribution of these endemic genera in the Antarctic region are also given. Article in Journal/Newspaper Antarc* Antarctic Zenodo ZooKeys 511 25 68 |
institution |
Open Polar |
collection |
Zenodo |
op_collection_id |
ftzenodo |
language |
unknown |
topic |
Animalia NematodaAnimalia Nematoda Adenophorea Dorylaimida 18S rDNA D2-D3 28S rDNA morphology new geographic records nomenclature SEM taxonomy |
spellingShingle |
Animalia NematodaAnimalia Nematoda Adenophorea Dorylaimida 18S rDNA D2-D3 28S rDNA morphology new geographic records nomenclature SEM taxonomy Elshishka, Milka Lazarova, Stela Radoslavov, Georgi Hristov, Peter Peneva, Vlada New data on two remarkable Antarctic species Amblydorylaimus isokaryon (Loof, 1975) Andrássy, 1998 and Pararhyssocolpus paradoxus (Loof, 1975), gen. n., comb. n. (Nematoda, Dorylaimida) |
topic_facet |
Animalia NematodaAnimalia Nematoda Adenophorea Dorylaimida 18S rDNA D2-D3 28S rDNA morphology new geographic records nomenclature SEM taxonomy |
description |
The taxonomic position of two antarctic dorylaimid species Amblydorylaimus isokaryon (Loof, 1975) Andrássy, 1998 and Pararhyssocolpus paradoxus (Loof, 1975), gen. n., comb. n. are discussed on the basis of morphological, including SEM study, morphometric, postembryonic and sequence data of 18S rDNA and the D2-D3 expansion fragments of large subunit rDNA. The evolutionary trees inferred from 18S sequences show insufficient resolution to determine the assignment of the two species to particular families, moreover P. paradoxus gen. n., comb. n. (=Rhyssocolpus paradoxus) previously regarded as a member of Nordiidae or Qudsianematidae, showed distant relationship both to Rhyssocolpus vinciguerrae and Eudorylaimus spp. The phylogram inferred from 28S sequences revealed that A. isokaryon is a member of a well-supported group comprised of several Aporcelaimellus spp., while, no close relationships could be revealed for the P. paradoxus gen. n., comb. n. to any nematode genus. On the basis of molecular data and morphological characteristics, some taxonomic changes are proposed. Amblydorylaimus isokaryon is transferred from family Qudsianematidae to family Aporcelaimidae, and a new monotypic genus Pararhyssocolpus gen. n. is proposed, attributed to Pararhyssocolpidae fam. n. The diagnosis of the new family is provided together with emended diagnosis of the genera Amblydorylaimus and Pararhyssocolpus gen. n. Data concerning distribution of these endemic genera in the Antarctic region are also given. |
format |
Article in Journal/Newspaper |
author |
Elshishka, Milka Lazarova, Stela Radoslavov, Georgi Hristov, Peter Peneva, Vlada |
author_facet |
Elshishka, Milka Lazarova, Stela Radoslavov, Georgi Hristov, Peter Peneva, Vlada |
author_sort |
Elshishka, Milka |
title |
New data on two remarkable Antarctic species Amblydorylaimus isokaryon (Loof, 1975) Andrássy, 1998 and Pararhyssocolpus paradoxus (Loof, 1975), gen. n., comb. n. (Nematoda, Dorylaimida) |
title_short |
New data on two remarkable Antarctic species Amblydorylaimus isokaryon (Loof, 1975) Andrássy, 1998 and Pararhyssocolpus paradoxus (Loof, 1975), gen. n., comb. n. (Nematoda, Dorylaimida) |
title_full |
New data on two remarkable Antarctic species Amblydorylaimus isokaryon (Loof, 1975) Andrássy, 1998 and Pararhyssocolpus paradoxus (Loof, 1975), gen. n., comb. n. (Nematoda, Dorylaimida) |
title_fullStr |
New data on two remarkable Antarctic species Amblydorylaimus isokaryon (Loof, 1975) Andrássy, 1998 and Pararhyssocolpus paradoxus (Loof, 1975), gen. n., comb. n. (Nematoda, Dorylaimida) |
title_full_unstemmed |
New data on two remarkable Antarctic species Amblydorylaimus isokaryon (Loof, 1975) Andrássy, 1998 and Pararhyssocolpus paradoxus (Loof, 1975), gen. n., comb. n. (Nematoda, Dorylaimida) |
title_sort |
new data on two remarkable antarctic species amblydorylaimus isokaryon (loof, 1975) andrássy, 1998 and pararhyssocolpus paradoxus (loof, 1975), gen. n., comb. n. (nematoda, dorylaimida) |
publisher |
Zenodo |
publishDate |
2015 |
url |
https://doi.org/10.3897/zookeys.511.9793 |
genre |
Antarc* Antarctic |
genre_facet |
Antarc* Antarctic |
op_source |
ZooKeys, 511, 25-68, (2015-07-02) |
op_relation |
https://zenodo.org/communities/biosyslit https://doi.org/10.3897/zookeys.511.9793 oai:zenodo.org:578920 |
op_rights |
info:eu-repo/semantics/openAccess Creative Commons Attribution 4.0 International https://creativecommons.org/licenses/by/4.0/legalcode |
op_doi |
https://doi.org/10.3897/zookeys.511.9793 |
container_title |
ZooKeys |
container_volume |
511 |
container_start_page |
25 |
op_container_end_page |
68 |
_version_ |
1810491321558761472 |