Mitogenome Phylogenetics of Spiruromorpha Porpoise Parasite: Insights Into Phylogeny of <i>Crassicauda magna</i>

(1) Background: <i>Crassicauda magna</i> is a major parasite of large porpoises and whales and has been classified in the Habronematoidea family. However, there has been a great controversy regarding its classification. Mitochondria have an important function in revealing taxonomic and e...

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Main Authors: Lei Han, Yuling Yang, Maolin Lu, Hongyan Yu, Yaxian Lu, Mengchao Zhou, Tianlu Liu, Ruisi Zhang, Bingyao Chen, Zhijun Hou
Format: Article
Language:English
Published: MDPI AG 2024-12-01
Series:Pathogens
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Online Access:https://www.mdpi.com/2076-0817/14/1/18
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author Lei Han
Yuling Yang
Maolin Lu
Hongyan Yu
Yaxian Lu
Mengchao Zhou
Tianlu Liu
Ruisi Zhang
Bingyao Chen
Zhijun Hou
author_facet Lei Han
Yuling Yang
Maolin Lu
Hongyan Yu
Yaxian Lu
Mengchao Zhou
Tianlu Liu
Ruisi Zhang
Bingyao Chen
Zhijun Hou
author_sort Lei Han
collection DOAJ
description (1) Background: <i>Crassicauda magna</i> is a major parasite of large porpoises and whales and has been classified in the Habronematoidea family. However, there has been a great controversy regarding its classification. Mitochondria have an important function in revealing taxonomic and evolutionary history. (2) Methods: In this study, we sequenced the mitochondrial genome of <i>C. magna</i> and conducted a phylogenetic analysis with the mitochondrial sequences of species belonging to the Habronematoidea family. (3) Results: The complete mitochondrial genome was 13,604 bp and it has an AT-rich sequence and one non-coding region (NCR). The reconstruction of the ancestral state showed that the gene orders of all species in Spirurina were conserved. The phylogenetic tree indicates that <i>C. magna</i> is closer to <i>Heliconema longissimum</i> (Physalopteroidea) than <i>Tetrameres grusi</i> (Habronematoidea). (4) Conclusions: This study provides new evidence that <i>C. magna</i> is phylogenetically closer to Physalopteroidea at the molecular taxonomic level.
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institution Kabale University
issn 2076-0817
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publishDate 2024-12-01
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series Pathogens
spelling doaj-art-b2397686a12449fe9f89f2e199179b252025-01-24T13:44:37ZengMDPI AGPathogens2076-08172024-12-011411810.3390/pathogens14010018Mitogenome Phylogenetics of Spiruromorpha Porpoise Parasite: Insights Into Phylogeny of <i>Crassicauda magna</i>Lei Han0Yuling Yang1Maolin Lu2Hongyan Yu3Yaxian Lu4Mengchao Zhou5Tianlu Liu6Ruisi Zhang7Bingyao Chen8Zhijun Hou9College of Wildlife and Protected Area, Northeast Forestry University, Harbin 150040, ChinaCollege of Wildlife and Protected Area, Northeast Forestry University, Harbin 150040, ChinaCollege of Wildlife and Protected Area, Northeast Forestry University, Harbin 150040, ChinaCollege of Wildlife and Protected Area, Northeast Forestry University, Harbin 150040, ChinaCollege of Wildlife and Protected Area, Northeast Forestry University, Harbin 150040, ChinaCollege of Wildlife and Protected Area, Northeast Forestry University, Harbin 150040, ChinaCollege of Wildlife and Protected Area, Northeast Forestry University, Harbin 150040, ChinaCollege of Wildlife and Protected Area, Northeast Forestry University, Harbin 150040, ChinaCollege of Life Sciences, Nanjing Normal University, Nanjing 210023, ChinaCollege of Wildlife and Protected Area, Northeast Forestry University, Harbin 150040, China(1) Background: <i>Crassicauda magna</i> is a major parasite of large porpoises and whales and has been classified in the Habronematoidea family. However, there has been a great controversy regarding its classification. Mitochondria have an important function in revealing taxonomic and evolutionary history. (2) Methods: In this study, we sequenced the mitochondrial genome of <i>C. magna</i> and conducted a phylogenetic analysis with the mitochondrial sequences of species belonging to the Habronematoidea family. (3) Results: The complete mitochondrial genome was 13,604 bp and it has an AT-rich sequence and one non-coding region (NCR). The reconstruction of the ancestral state showed that the gene orders of all species in Spirurina were conserved. The phylogenetic tree indicates that <i>C. magna</i> is closer to <i>Heliconema longissimum</i> (Physalopteroidea) than <i>Tetrameres grusi</i> (Habronematoidea). (4) Conclusions: This study provides new evidence that <i>C. magna</i> is phylogenetically closer to Physalopteroidea at the molecular taxonomic level.https://www.mdpi.com/2076-0817/14/1/18<i>Crassicauda magna</i>mitochondrial genomicsspirurinamarine parasitology
spellingShingle Lei Han
Yuling Yang
Maolin Lu
Hongyan Yu
Yaxian Lu
Mengchao Zhou
Tianlu Liu
Ruisi Zhang
Bingyao Chen
Zhijun Hou
Mitogenome Phylogenetics of Spiruromorpha Porpoise Parasite: Insights Into Phylogeny of <i>Crassicauda magna</i>
Pathogens
<i>Crassicauda magna</i>
mitochondrial genomics
spirurina
marine parasitology
title Mitogenome Phylogenetics of Spiruromorpha Porpoise Parasite: Insights Into Phylogeny of <i>Crassicauda magna</i>
title_full Mitogenome Phylogenetics of Spiruromorpha Porpoise Parasite: Insights Into Phylogeny of <i>Crassicauda magna</i>
title_fullStr Mitogenome Phylogenetics of Spiruromorpha Porpoise Parasite: Insights Into Phylogeny of <i>Crassicauda magna</i>
title_full_unstemmed Mitogenome Phylogenetics of Spiruromorpha Porpoise Parasite: Insights Into Phylogeny of <i>Crassicauda magna</i>
title_short Mitogenome Phylogenetics of Spiruromorpha Porpoise Parasite: Insights Into Phylogeny of <i>Crassicauda magna</i>
title_sort mitogenome phylogenetics of spiruromorpha porpoise parasite insights into phylogeny of i crassicauda magna i
topic <i>Crassicauda magna</i>
mitochondrial genomics
spirurina
marine parasitology
url https://www.mdpi.com/2076-0817/14/1/18
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