{"refrec":{"BRefID":369420,"RR":"<b>Kupaeva, D.; Lebedeva, T.; Kobrinsky, Z.; Vanwalleghem, D.; Prudkovsky, A.; Kremnyov, S.</b> (2023). Margelopsid species search taxonomic home within Corymorphidae and Boreohydridae. <i>PeerJ 11</i>: e16265. <a href=\"https://dx.doi.org/10.7717/peerj.16265\" target=\"_blank\">https://dx.doi.org/10.7717/peerj.16265</a>","BEntID":367150,"PublicFlag":1,"CheckedFlag":1,"wosflag":1,"vabbflag":1,"RefStringPartII":". <i>PeerJ 11</i>: e16265. <a href=\"https://dx.doi.org/10.7717/peerj.16265\" target=\"_blank\">https://dx.doi.org/10.7717/peerj.16265</a>","DocTypID":8,"DocType":"Journal article","MarineFlag":1,"FreshFlag":0,"BrackishFlag":0,"TerrestrialFlag":0,"Authorstring":"Kupaeva, D.; Lebedeva, T.; Kobrinsky, Z.; Vanwalleghem, D.; Prudkovsky, A.; Kremnyov, S.","OrigTitleTranslFlag":0,"Authorstringtrunc":"Kupaeva, D. <i>et al.</i>","Englishabstract":"Planktonic lifestyle of polyps in representatives of Margelopsidae are very different from all other species in the hydrozoan clade Aplanulata. Their evolutionary origin and phylogenetic position have been the subject of significant speculation. A recent molecular study based only on COI data placed Margelopsidae as a sister group to all Aplanulata, an unexpected result because margelopsid morphology suggests affiliation with Tubulariidae or Corymorphidae. Here we used multigene analyses, including nuclear (18S rRNA and 28S rRNA) and mitochondrial (16S rRNA and COI) markers of the hydroid stage of the margelopsid species <i>Margelopsis haeckelii</i> and the medusa stage of <i>Margelopsis hartlaubii</i> to resolve their phylogenetic position with respect to other hydrozoans. Our data provide strong evidence that <i>M. haeckelii</i>, the type species of <i>Margelopsis</i>, is a member of the family Corymorphidae. In contrast, <i>M. hartlaubii</i> is sister to <i>Plotocnide borealis</i>, a member of Boreohydridae. These results call into question the validity of the genus <i>Margelopsis</i> and the family Margelopsidae. The systematic position of <i>M. haeckelii</i> is discussed in light of the phylogeny of Corymorphidae.","AbstractOtherLang":null,"BibLvlCode":"AS","StandardTitle":"Margelopsid species search taxonomic home within Corymorphidae and Boreohydridae","OrigTitleLangCode":"en","OrigTitleLangCodeExtended":"eng","OrigTitleLangID":15,"DateLastModified":{"date":"2025-09-25 01:36:50.712317","timezone_type":1,"timezone":"+02:00"},"UserAccessRight":null,"UserAccID":null,"AuthorKeywords":"Cnidaria, Hydrozoa, Corymorphidae, Margelopsidae, <i>Margelopsis haeckelii</i>, <i>Margelopsis hartlaubi</i>, <i>Plotocnide borealis</i>, Molecular phylogeny","OtherDescriptors":null,"Notes":null,"AnaPub":2023,"MonPub":null,"DateUpdate":"2025-09-18","DateCreate":"2023-12-11","SecASFANote":null,"ConfID":null,"PeerRev":1,"VlizCoreFlag":1,"WoScode":"WOS:001117624200006","VABBcode":null,"OpenAcc":1,"DOI":"10.7717/peerj.16265"},"refs":null,"anarec":{"AnaID":369420,"PubliDate":2023,"Pagination":"e16265","XtraPublOfAnaID":null,"ISBN":null,"Volume":"11","Issue":null,"BRefMon":null,"BRefMonRR":null,"BRefXtra":null,"BRefXtraRR":null,"SerBRefID":242055,"SerRR":"PeerJ. 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