Potential new species of pseudaliid lung nematode (Metastrongyloidea) from two stranded neonatal orcas (Orcinus orca) characterized by ITS‐2 and COI sequences
Knowledge about parasite species of orcas, their prevalence, and impact on the health status is scarce. Only two records of lungworm infections in orca exist from male neonatal orcas stranded in Germany and Norway. The nematodes were identified as Halocercus sp. (Pseudaliidae), which have been descr...
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ftpubmed:oai:pubmedcentral.nih.gov:10150029 2023-06-11T04:15:46+02:00 Potential new species of pseudaliid lung nematode (Metastrongyloidea) from two stranded neonatal orcas (Orcinus orca) characterized by ITS‐2 and COI sequences Lehnert, Kristina Boyi, Joy Ometere Siebert, Ursula 2023-04-30 http://www.ncbi.nlm.nih.gov/pmc/articles/PMC10150029/ http://www.ncbi.nlm.nih.gov/pubmed/37139403 https://doi.org/10.1002/ece3.10036 en eng John Wiley and Sons Inc. http://www.ncbi.nlm.nih.gov/pmc/articles/PMC10150029/ http://www.ncbi.nlm.nih.gov/pubmed/37139403 http://dx.doi.org/10.1002/ece3.10036 © 2023 The Authors. Ecology and Evolution published by John Wiley & Sons Ltd. https://creativecommons.org/licenses/by/4.0/This is an open access article under the terms of the http://creativecommons.org/licenses/by/4.0/ (https://creativecommons.org/licenses/by/4.0/) License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited. Ecol Evol Research Articles Text 2023 ftpubmed https://doi.org/10.1002/ece3.10036 2023-05-07T01:09:19Z Knowledge about parasite species of orcas, their prevalence, and impact on the health status is scarce. Only two records of lungworm infections in orca exist from male neonatal orcas stranded in Germany and Norway. The nematodes were identified as Halocercus sp. (Pseudaliidae), which have been described in the respiratory tract of multiple odontocete species, but morphological identification to species level remained impossible due to the fragile structure and ambiguous morphological features. Pseudaliid nematodes (Metastrongyloidea) are specific to the respiratory tract of toothed whales and are hypothesized to have become almost extinct in terrestrial mammals. Severe lungworm infections can cause secondary bacterial infections and bronchopneumonia and are a common cause of mortality in odontocetes. DNA isolations and subsequent sequencing of the rDNA ITS‐2 and mtDNA COI revealed nucleotide differences between previously described Halocercus species from common dolphin (H. delphini) and harbor porpoises (H. invaginatus) that were comparatively analyzed, pointing toward a potentially new species of pseudaliid lungworm in orcas. New COI sequences of six additional metastrongyloid lungworms of seals and porpoises were derived to elucidate phylogenetic relationships and differences between nine species of Metastrongyloidea. Text Orca Orcinus orca toothed whales PubMed Central (PMC) Norway Ecology and Evolution 13 5 |
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Research Articles Lehnert, Kristina Boyi, Joy Ometere Siebert, Ursula Potential new species of pseudaliid lung nematode (Metastrongyloidea) from two stranded neonatal orcas (Orcinus orca) characterized by ITS‐2 and COI sequences |
topic_facet |
Research Articles |
description |
Knowledge about parasite species of orcas, their prevalence, and impact on the health status is scarce. Only two records of lungworm infections in orca exist from male neonatal orcas stranded in Germany and Norway. The nematodes were identified as Halocercus sp. (Pseudaliidae), which have been described in the respiratory tract of multiple odontocete species, but morphological identification to species level remained impossible due to the fragile structure and ambiguous morphological features. Pseudaliid nematodes (Metastrongyloidea) are specific to the respiratory tract of toothed whales and are hypothesized to have become almost extinct in terrestrial mammals. Severe lungworm infections can cause secondary bacterial infections and bronchopneumonia and are a common cause of mortality in odontocetes. DNA isolations and subsequent sequencing of the rDNA ITS‐2 and mtDNA COI revealed nucleotide differences between previously described Halocercus species from common dolphin (H. delphini) and harbor porpoises (H. invaginatus) that were comparatively analyzed, pointing toward a potentially new species of pseudaliid lungworm in orcas. New COI sequences of six additional metastrongyloid lungworms of seals and porpoises were derived to elucidate phylogenetic relationships and differences between nine species of Metastrongyloidea. |
format |
Text |
author |
Lehnert, Kristina Boyi, Joy Ometere Siebert, Ursula |
author_facet |
Lehnert, Kristina Boyi, Joy Ometere Siebert, Ursula |
author_sort |
Lehnert, Kristina |
title |
Potential new species of pseudaliid lung nematode (Metastrongyloidea) from two stranded neonatal orcas (Orcinus orca) characterized by ITS‐2 and COI sequences |
title_short |
Potential new species of pseudaliid lung nematode (Metastrongyloidea) from two stranded neonatal orcas (Orcinus orca) characterized by ITS‐2 and COI sequences |
title_full |
Potential new species of pseudaliid lung nematode (Metastrongyloidea) from two stranded neonatal orcas (Orcinus orca) characterized by ITS‐2 and COI sequences |
title_fullStr |
Potential new species of pseudaliid lung nematode (Metastrongyloidea) from two stranded neonatal orcas (Orcinus orca) characterized by ITS‐2 and COI sequences |
title_full_unstemmed |
Potential new species of pseudaliid lung nematode (Metastrongyloidea) from two stranded neonatal orcas (Orcinus orca) characterized by ITS‐2 and COI sequences |
title_sort |
potential new species of pseudaliid lung nematode (metastrongyloidea) from two stranded neonatal orcas (orcinus orca) characterized by its‐2 and coi sequences |
publisher |
John Wiley and Sons Inc. |
publishDate |
2023 |
url |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC10150029/ http://www.ncbi.nlm.nih.gov/pubmed/37139403 https://doi.org/10.1002/ece3.10036 |
geographic |
Norway |
geographic_facet |
Norway |
genre |
Orca Orcinus orca toothed whales |
genre_facet |
Orca Orcinus orca toothed whales |
op_source |
Ecol Evol |
op_relation |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC10150029/ http://www.ncbi.nlm.nih.gov/pubmed/37139403 http://dx.doi.org/10.1002/ece3.10036 |
op_rights |
© 2023 The Authors. Ecology and Evolution published by John Wiley & Sons Ltd. https://creativecommons.org/licenses/by/4.0/This is an open access article under the terms of the http://creativecommons.org/licenses/by/4.0/ (https://creativecommons.org/licenses/by/4.0/) License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited. |
op_doi |
https://doi.org/10.1002/ece3.10036 |
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Ecology and Evolution |
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13 |
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5 |
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1768372873711321088 |