Morphological and molecular characterisation of Spirinia antipodea Leduc n. sp. (Nematoda: Desmodoridae), a cryptic species related to S. parasitifera, from the coast of New Zealand
Summary Spirinia parasitifera is a common nematode species recorded from coastal habitats of the White, North and Barents Seas, the Northwest Atlantic, the Maldives and Australia, and exhibits a high degree of variability in some morphological characters. For these reasons it has been suggested that...
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crbrillap:10.1163/15685411-00003199 2023-05-15T17:45:45+02:00 Morphological and molecular characterisation of Spirinia antipodea Leduc n. sp. (Nematoda: Desmodoridae), a cryptic species related to S. parasitifera, from the coast of New Zealand Leduc, Daniel Zhao, Zeng Qi 2019 http://dx.doi.org/10.1163/15685411-00003199 https://brill.com/view/journals/nemy/21/1/article-p91_8.xml https://brill.com/downloadpdf/journals/nemy/21/1/article-p91_8.xml unknown Brill Nematology volume 21, issue 1, page 91-105 ISSN 1388-5545 1568-5411 Agronomy and Crop Science Ecology, Evolution, Behavior and Systematics journal-article 2019 crbrillap https://doi.org/10.1163/15685411-00003199 2022-12-11T12:44:49Z Summary Spirinia parasitifera is a common nematode species recorded from coastal habitats of the White, North and Barents Seas, the Northwest Atlantic, the Maldives and Australia, and exhibits a high degree of variability in some morphological characters. For these reasons it has been suggested that S. parasitifera is a species complex comprised of several distinct but potentially cryptic species. However, no study has yet combined molecular and morphological approaches to verify this assertion. Here, we describe S. antipodea n. sp., a species morphologically very similar to S. parasitifera , from the coast of New Zealand. Spirinia antipodea n. sp. differs from the original description of S. parasitifera as well as subsequent descriptions by other authors in at least one body dimension, but no single trait differs consistently between the New Zealand specimens and all descriptions of S. parasitifera . Phylogenetic analyses showed that the new species is distinct from other species of the genus, including S. parasitifera specimens sampled near the type locality. The S. antipodea n. sp. SSU sequence differed from other Spirinia sequence by 2.1-5.3%, whilst D2-D3 of LSU sequences differed by 12.5-18.9%. The consensus SSU tree also recovered three distinct S. parasitifera clades, which provides support for the existence of a species complex. Because it is not possible to determine whether the variability in morphological characters observed among descriptions of S. parasitifera is intra- or interspecific, and therefore to determine which trait can reliably be used to differentiate between S. antipodea n. sp. and S. parasitifera , the new species is best differentiated from S. parasitifera and other closely related species based on SSU sequences rather than morphological characters. Article in Journal/Newspaper Northwest Atlantic Brill (via Crossref) New Zealand Nematology 21 1 91 105 |
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Agronomy and Crop Science Ecology, Evolution, Behavior and Systematics |
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Agronomy and Crop Science Ecology, Evolution, Behavior and Systematics Leduc, Daniel Zhao, Zeng Qi Morphological and molecular characterisation of Spirinia antipodea Leduc n. sp. (Nematoda: Desmodoridae), a cryptic species related to S. parasitifera, from the coast of New Zealand |
topic_facet |
Agronomy and Crop Science Ecology, Evolution, Behavior and Systematics |
description |
Summary Spirinia parasitifera is a common nematode species recorded from coastal habitats of the White, North and Barents Seas, the Northwest Atlantic, the Maldives and Australia, and exhibits a high degree of variability in some morphological characters. For these reasons it has been suggested that S. parasitifera is a species complex comprised of several distinct but potentially cryptic species. However, no study has yet combined molecular and morphological approaches to verify this assertion. Here, we describe S. antipodea n. sp., a species morphologically very similar to S. parasitifera , from the coast of New Zealand. Spirinia antipodea n. sp. differs from the original description of S. parasitifera as well as subsequent descriptions by other authors in at least one body dimension, but no single trait differs consistently between the New Zealand specimens and all descriptions of S. parasitifera . Phylogenetic analyses showed that the new species is distinct from other species of the genus, including S. parasitifera specimens sampled near the type locality. The S. antipodea n. sp. SSU sequence differed from other Spirinia sequence by 2.1-5.3%, whilst D2-D3 of LSU sequences differed by 12.5-18.9%. The consensus SSU tree also recovered three distinct S. parasitifera clades, which provides support for the existence of a species complex. Because it is not possible to determine whether the variability in morphological characters observed among descriptions of S. parasitifera is intra- or interspecific, and therefore to determine which trait can reliably be used to differentiate between S. antipodea n. sp. and S. parasitifera , the new species is best differentiated from S. parasitifera and other closely related species based on SSU sequences rather than morphological characters. |
format |
Article in Journal/Newspaper |
author |
Leduc, Daniel Zhao, Zeng Qi |
author_facet |
Leduc, Daniel Zhao, Zeng Qi |
author_sort |
Leduc, Daniel |
title |
Morphological and molecular characterisation of Spirinia antipodea Leduc n. sp. (Nematoda: Desmodoridae), a cryptic species related to S. parasitifera, from the coast of New Zealand |
title_short |
Morphological and molecular characterisation of Spirinia antipodea Leduc n. sp. (Nematoda: Desmodoridae), a cryptic species related to S. parasitifera, from the coast of New Zealand |
title_full |
Morphological and molecular characterisation of Spirinia antipodea Leduc n. sp. (Nematoda: Desmodoridae), a cryptic species related to S. parasitifera, from the coast of New Zealand |
title_fullStr |
Morphological and molecular characterisation of Spirinia antipodea Leduc n. sp. (Nematoda: Desmodoridae), a cryptic species related to S. parasitifera, from the coast of New Zealand |
title_full_unstemmed |
Morphological and molecular characterisation of Spirinia antipodea Leduc n. sp. (Nematoda: Desmodoridae), a cryptic species related to S. parasitifera, from the coast of New Zealand |
title_sort |
morphological and molecular characterisation of spirinia antipodea leduc n. sp. (nematoda: desmodoridae), a cryptic species related to s. parasitifera, from the coast of new zealand |
publisher |
Brill |
publishDate |
2019 |
url |
http://dx.doi.org/10.1163/15685411-00003199 https://brill.com/view/journals/nemy/21/1/article-p91_8.xml https://brill.com/downloadpdf/journals/nemy/21/1/article-p91_8.xml |
geographic |
New Zealand |
geographic_facet |
New Zealand |
genre |
Northwest Atlantic |
genre_facet |
Northwest Atlantic |
op_source |
Nematology volume 21, issue 1, page 91-105 ISSN 1388-5545 1568-5411 |
op_doi |
https://doi.org/10.1163/15685411-00003199 |
container_title |
Nematology |
container_volume |
21 |
container_issue |
1 |
container_start_page |
91 |
op_container_end_page |
105 |
_version_ |
1766148979456737280 |