A new Aporcelinus species (Nematoda, Aporcelaimidae) from Livingston Island - first record of the genus from the Maritime Antarctic
The genus Aporcelinus Andrássy, 2009 was erected to accommodate species with characteristic cuticle and other aporcelaimid features such as the lip region, odontostyle and guiding apparatus structure, which have been previously described under Allodorylaimus/Eudorylaimus. In respect to the cuticle s...
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ftpensoft:10.3897/aca.2.e46460 2023-05-15T14:05:14+02:00 A new Aporcelinus species (Nematoda, Aporcelaimidae) from Livingston Island - first record of the genus from the Maritime Antarctic Elshishka,Milka Lazarova,Stela Mladenov,Alexander Radoslavov,Georgi Apostolova,Denitsa Lozanova,Lydmila Peneva,Vlada 2019 text/html https://doi.org/10.3897/aca.2.e46460 https://aca.pensoft.net/article/46460/ en eng Pensoft Publishers info:eu-repo/semantics/altIdentifier/eissn/2603-3925 info:eu-repo/semantics/openAccess ARPHA Conference Abstracts 2: e46460 18S and D2-D3 28S rDNA morphology phylogeny Conference Abstract 2019 ftpensoft https://doi.org/10.3897/aca.2.e46460 2022-03-01T12:41:05Z The genus Aporcelinus Andrássy, 2009 was erected to accommodate species with characteristic cuticle and other aporcelaimid features such as the lip region, odontostyle and guiding apparatus structure, which have been previously described under Allodorylaimus/Eudorylaimus. In respect to the cuticle structure, the genus is similar to only two other aporcelaimid genera – Aporcelaimellus Heyns, 1965 and Makatinus Heyns, 1965. The genus Aporcelinus currently contains 27 species and is a wide-spread aporcelaimid taxon (Peña-Santiago and Varela-Benavides 2019), reported to occur in all continents except Australia and Antarctica. Nine specimens from one unknown species belonging to this genus were recovered from moss communities on Livingston Island, Antarctica and studied by an integrative approach (molecular phylogeny and morphology). Aporelinus sp. is characterised by females with medium body size (1.85–2.12 mm), lip region 18–21 μm wide, set off from the adjoining body by constriction, odontostyle and odontophore 23 μm and 30–33 μm long, respectively, vulva transverse slit (V=50–54%), pars refringens vaginae consisting of (in lateral view) two trapezoid sclerotised pieces, uteri differentiated tri-partite, tail ventrally arcuate with rounded terminus (45–60 μm long, c=33.6–42.6, c’=1.4–1.8). It differs from all other species of the genus by its tri-partite uteri with very long and convoluted middle tubular part. Aporcelinus sp. represents a new geographical record for Antarctica. Conference Object Antarc* Antarctic Antarctica Livingston Island Pensoft Publishers Antarctic Benavides ENVELOPE(-58.267,-58.267,-63.933,-63.933) Livingston Island ENVELOPE(-60.500,-60.500,-62.600,-62.600) Varela ENVELOPE(-60.583,-60.583,-62.933,-62.933) ARPHA Conference Abstracts 2 |
institution |
Open Polar |
collection |
Pensoft Publishers |
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ftpensoft |
language |
English |
topic |
18S and D2-D3 28S rDNA morphology phylogeny |
spellingShingle |
18S and D2-D3 28S rDNA morphology phylogeny Elshishka,Milka Lazarova,Stela Mladenov,Alexander Radoslavov,Georgi Apostolova,Denitsa Lozanova,Lydmila Peneva,Vlada A new Aporcelinus species (Nematoda, Aporcelaimidae) from Livingston Island - first record of the genus from the Maritime Antarctic |
topic_facet |
18S and D2-D3 28S rDNA morphology phylogeny |
description |
The genus Aporcelinus Andrássy, 2009 was erected to accommodate species with characteristic cuticle and other aporcelaimid features such as the lip region, odontostyle and guiding apparatus structure, which have been previously described under Allodorylaimus/Eudorylaimus. In respect to the cuticle structure, the genus is similar to only two other aporcelaimid genera – Aporcelaimellus Heyns, 1965 and Makatinus Heyns, 1965. The genus Aporcelinus currently contains 27 species and is a wide-spread aporcelaimid taxon (Peña-Santiago and Varela-Benavides 2019), reported to occur in all continents except Australia and Antarctica. Nine specimens from one unknown species belonging to this genus were recovered from moss communities on Livingston Island, Antarctica and studied by an integrative approach (molecular phylogeny and morphology). Aporelinus sp. is characterised by females with medium body size (1.85–2.12 mm), lip region 18–21 μm wide, set off from the adjoining body by constriction, odontostyle and odontophore 23 μm and 30–33 μm long, respectively, vulva transverse slit (V=50–54%), pars refringens vaginae consisting of (in lateral view) two trapezoid sclerotised pieces, uteri differentiated tri-partite, tail ventrally arcuate with rounded terminus (45–60 μm long, c=33.6–42.6, c’=1.4–1.8). It differs from all other species of the genus by its tri-partite uteri with very long and convoluted middle tubular part. Aporcelinus sp. represents a new geographical record for Antarctica. |
format |
Conference Object |
author |
Elshishka,Milka Lazarova,Stela Mladenov,Alexander Radoslavov,Georgi Apostolova,Denitsa Lozanova,Lydmila Peneva,Vlada |
author_facet |
Elshishka,Milka Lazarova,Stela Mladenov,Alexander Radoslavov,Georgi Apostolova,Denitsa Lozanova,Lydmila Peneva,Vlada |
author_sort |
Elshishka,Milka |
title |
A new Aporcelinus species (Nematoda, Aporcelaimidae) from Livingston Island - first record of the genus from the Maritime Antarctic |
title_short |
A new Aporcelinus species (Nematoda, Aporcelaimidae) from Livingston Island - first record of the genus from the Maritime Antarctic |
title_full |
A new Aporcelinus species (Nematoda, Aporcelaimidae) from Livingston Island - first record of the genus from the Maritime Antarctic |
title_fullStr |
A new Aporcelinus species (Nematoda, Aporcelaimidae) from Livingston Island - first record of the genus from the Maritime Antarctic |
title_full_unstemmed |
A new Aporcelinus species (Nematoda, Aporcelaimidae) from Livingston Island - first record of the genus from the Maritime Antarctic |
title_sort |
new aporcelinus species (nematoda, aporcelaimidae) from livingston island - first record of the genus from the maritime antarctic |
publisher |
Pensoft Publishers |
publishDate |
2019 |
url |
https://doi.org/10.3897/aca.2.e46460 https://aca.pensoft.net/article/46460/ |
long_lat |
ENVELOPE(-58.267,-58.267,-63.933,-63.933) ENVELOPE(-60.500,-60.500,-62.600,-62.600) ENVELOPE(-60.583,-60.583,-62.933,-62.933) |
geographic |
Antarctic Benavides Livingston Island Varela |
geographic_facet |
Antarctic Benavides Livingston Island Varela |
genre |
Antarc* Antarctic Antarctica Livingston Island |
genre_facet |
Antarc* Antarctic Antarctica Livingston Island |
op_source |
ARPHA Conference Abstracts 2: e46460 |
op_relation |
info:eu-repo/semantics/altIdentifier/eissn/2603-3925 |
op_rights |
info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.3897/aca.2.e46460 |
container_title |
ARPHA Conference Abstracts |
container_volume |
2 |
_version_ |
1766276972474793984 |