{"title":"保加利亚河岸栖息地单子叶线虫的综合分类研究。I. 属 Mononchus Bastian, 1865 和 Coomansus Jairajpuri & Khan, 1977,附 Mononchuspseudoaquaticus sp.","authors":"Stela Altash, Aneta Kostadinova, Vlada Peneva","doi":"10.3897/zookeys.1206.124237","DOIUrl":null,"url":null,"abstract":"<p><p>The species diversity of the genera <i>Mononchus</i> Bastian, 1865 and <i>Coomansus</i> Jairajpuri & Khan, 1977 was assessed in a study of the mononchid nematodes from a wide range of riparian habitats in Bulgaria. Four species were identified based on morphological and morphometric data: <i>Coomansusparvus</i> (de Man, 1880), <i>Mononchustruncatus</i> Bastian, 1865, <i>Mononchuspseudoaquaticus</i> <b>sp. nov.</b>, and <i>Mononchus</i> sp. The first three species were characterised both morphologically and molecularly (18S and 28S rRNA gene sequences) and the integration of these data and phylogenetic analyses provided support for their distinct species status. This paper provides detailed descriptions, morphometric data for multiple species populations, drawings and photomicrographs, and the first taxonomically verified sequences for <i>C.parvus</i> (<i>n</i> = 6), <i>M.truncatus</i> (sensu stricto) (<i>n</i> = 4) and <i>M.pseudoaquaticus</i> <b>sp. nov.</b> (<i>n</i> = 3). Comparative sequence and phylogenetic analyses suggested that the utility of the 18S rRNA gene for species delimitation is rather limited at least for some species complexes within the genus <i>Mononchus</i>. At the generic and suprageneric level, the 18S and 28S rDNA phylogenies both recovered the three genera represented by two or more species (<i>Mononchus</i>, <i>Mylonchulus</i>, and <i>Parkellus</i>) as monophyletic with strong support, the Mononchidae as paraphyletic, the Anatonchidae as monophyletic, and there was no support for a sister-group relationship between <i>Mylonchulus</i> and <i>Mononchus</i>. A key to the species of <i>Mononchus</i> is provided to facilitate the identification of the currently recognised 31 species.</p>","PeriodicalId":24051,"journal":{"name":"ZooKeys","volume":"1206 ","pages":"137-180"},"PeriodicalIF":1.3000,"publicationDate":"2024-07-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11245642/pdf/","citationCount":"0","resultStr":"{\"title\":\"Integrative taxonomic study of mononchid nematodes from riparian habitats in Bulgaria. I. Genera <i>Mononchus</i> Bastian, 1865 and <i>Coomansus</i> Jairajpuri & Khan, 1977 with the description of <i>Mononchuspseudoaquaticus</i> sp. nov. and a key to the species of <i>Mononchus</i>.\",\"authors\":\"Stela Altash, Aneta Kostadinova, Vlada Peneva\",\"doi\":\"10.3897/zookeys.1206.124237\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p><p>The species diversity of the genera <i>Mononchus</i> Bastian, 1865 and <i>Coomansus</i> Jairajpuri & Khan, 1977 was assessed in a study of the mononchid nematodes from a wide range of riparian habitats in Bulgaria. Four species were identified based on morphological and morphometric data: <i>Coomansusparvus</i> (de Man, 1880), <i>Mononchustruncatus</i> Bastian, 1865, <i>Mononchuspseudoaquaticus</i> <b>sp. nov.</b>, and <i>Mononchus</i> sp. The first three species were characterised both morphologically and molecularly (18S and 28S rRNA gene sequences) and the integration of these data and phylogenetic analyses provided support for their distinct species status. This paper provides detailed descriptions, morphometric data for multiple species populations, drawings and photomicrographs, and the first taxonomically verified sequences for <i>C.parvus</i> (<i>n</i> = 6), <i>M.truncatus</i> (sensu stricto) (<i>n</i> = 4) and <i>M.pseudoaquaticus</i> <b>sp. nov.</b> (<i>n</i> = 3). Comparative sequence and phylogenetic analyses suggested that the utility of the 18S rRNA gene for species delimitation is rather limited at least for some species complexes within the genus <i>Mononchus</i>. At the generic and suprageneric level, the 18S and 28S rDNA phylogenies both recovered the three genera represented by two or more species (<i>Mononchus</i>, <i>Mylonchulus</i>, and <i>Parkellus</i>) as monophyletic with strong support, the Mononchidae as paraphyletic, the Anatonchidae as monophyletic, and there was no support for a sister-group relationship between <i>Mylonchulus</i> and <i>Mononchus</i>. A key to the species of <i>Mononchus</i> is provided to facilitate the identification of the currently recognised 31 species.</p>\",\"PeriodicalId\":24051,\"journal\":{\"name\":\"ZooKeys\",\"volume\":\"1206 \",\"pages\":\"137-180\"},\"PeriodicalIF\":1.3000,\"publicationDate\":\"2024-07-05\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11245642/pdf/\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"ZooKeys\",\"FirstCategoryId\":\"99\",\"ListUrlMain\":\"https://doi.org/10.3897/zookeys.1206.124237\",\"RegionNum\":3,\"RegionCategory\":\"生物学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"2024/1/1 0:00:00\",\"PubModel\":\"eCollection\",\"JCR\":\"Q2\",\"JCRName\":\"ZOOLOGY\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"ZooKeys","FirstCategoryId":"99","ListUrlMain":"https://doi.org/10.3897/zookeys.1206.124237","RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"2024/1/1 0:00:00","PubModel":"eCollection","JCR":"Q2","JCRName":"ZOOLOGY","Score":null,"Total":0}
Integrative taxonomic study of mononchid nematodes from riparian habitats in Bulgaria. I. Genera Mononchus Bastian, 1865 and Coomansus Jairajpuri & Khan, 1977 with the description of Mononchuspseudoaquaticus sp. nov. and a key to the species of Mononchus.
The species diversity of the genera Mononchus Bastian, 1865 and Coomansus Jairajpuri & Khan, 1977 was assessed in a study of the mononchid nematodes from a wide range of riparian habitats in Bulgaria. Four species were identified based on morphological and morphometric data: Coomansusparvus (de Man, 1880), Mononchustruncatus Bastian, 1865, Mononchuspseudoaquaticussp. nov., and Mononchus sp. The first three species were characterised both morphologically and molecularly (18S and 28S rRNA gene sequences) and the integration of these data and phylogenetic analyses provided support for their distinct species status. This paper provides detailed descriptions, morphometric data for multiple species populations, drawings and photomicrographs, and the first taxonomically verified sequences for C.parvus (n = 6), M.truncatus (sensu stricto) (n = 4) and M.pseudoaquaticussp. nov. (n = 3). Comparative sequence and phylogenetic analyses suggested that the utility of the 18S rRNA gene for species delimitation is rather limited at least for some species complexes within the genus Mononchus. At the generic and suprageneric level, the 18S and 28S rDNA phylogenies both recovered the three genera represented by two or more species (Mononchus, Mylonchulus, and Parkellus) as monophyletic with strong support, the Mononchidae as paraphyletic, the Anatonchidae as monophyletic, and there was no support for a sister-group relationship between Mylonchulus and Mononchus. A key to the species of Mononchus is provided to facilitate the identification of the currently recognised 31 species.
期刊介绍:
ZooKeys is a peer-reviewed, open-access, online and print, rapidly produced journal launched to support free exchange of ideas and information in systematic zoology, phylogeny and biogeography.
All papers can be freely copied, downloaded, printed and distributed at no charge. Authors and readers are thus encouraged to post the pdf files of published papers on homepages or elsewhere to expedite distribution. There is no charge for color.