{"refrec":{"BRefID":354776,"RR":"<b>Drábková, M.; Kocot, K.M.; Halanych, K.M.; Oakley, T.H.; Moroz, L.L.; Cannon, J.T.; Kuris, A.M.; Garcia-Vedrenne, A.E.; Pankey, M.S.; Ellis, E.A.; Varney, R.; Štefka, J.; Zrzavý, J.</b> (2022). Different phylogenomic methods support monophyly of enigmatic ‘Mesozoa’ (Dicyemida + Orthonectida, Lophotrochozoa). <i>Proc. - Royal Soc., Biol. Sci. 289(1978)</i>: 20220683. <a href=\"https://dx.doi.org/10.1098/rspb.2022.0683\" target=\"_blank\">https://dx.doi.org/10.1098/rspb.2022.0683</a>","BEntID":352489,"PublicFlag":1,"CheckedFlag":0,"wosflag":1,"vabbflag":1,"RefStringPartII":". <i>Proc. - Royal Soc., Biol. Sci. 289(1978)</i>: 20220683. <a href=\"https://dx.doi.org/10.1098/rspb.2022.0683\" target=\"_blank\">https://dx.doi.org/10.1098/rspb.2022.0683</a>","DocTypID":8,"DocType":"Journal article","MarineFlag":1,"FreshFlag":0,"BrackishFlag":0,"TerrestrialFlag":0,"Authorstring":"Drábková, M.; Kocot, K.M.; Halanych, K.M.; Oakley, T.H.; Moroz, L.L.; Cannon, J.T.; Kuris, A.M.; Garcia-Vedrenne, A.E.; Pankey, M.S.; Ellis, E.A.; Varney, R.; Štefka, J.; Zrzavý, J.","OrigTitleTranslFlag":0,"Authorstringtrunc":"Drábková, M. <i>et al.</i>","Englishabstract":"Dicyemids and orthonectids were traditionally classified in a group called Mesozoa, but their placement in a single clade has been contested and their position(s) within Metazoa is uncertain. Here, we assembled a comprehensive matrix of Lophotrochozoa (Metazoa) and investigated the position of Dicyemida (= Rhombozoa) and Orthonectida, employing multiple phylogenomic approaches. We sequenced seven new transcriptomes and one draft genome from dicyemids (<i>Dicyema</i>, <i>Dicyemennea</i>) and two transcriptomes from orthonectids (<i>Rhopalura</i>). Using these and published data, we assembled and analysed contamination-filtered datasets with up to 987 genes. Our results recover Mesozoa monophyletic and as a close relative of Platyhelminthes or Gnathifera. Because of the tendency of the long-branch mesozoans to group with other long-branch taxa in our analyses, we explored the impact of approaches purported to help alleviate long-branch attraction (e.g. taxon removal, coalescent inference, gene targeting). None of these were able to break the association of Orthonectida with Dicyemida in the maximum-likelihood trees. Contrastingly, the Bayesian analysis and site-specific frequency model in maximum-likelihood did not recover a monophyletic Mesozoa (but only when using a specific 50 gene matrix). The classic hypothesis on monophyletic Mesozoa is possibly reborn and should be further tested.","AbstractOtherLang":null,"BibLvlCode":"AS","StandardTitle":"Different phylogenomic methods support monophyly of enigmatic ‘Mesozoa’ (Dicyemida + Orthonectida, Lophotrochozoa)","OrigTitleLangCode":"en","OrigTitleLangCodeExtended":"eng","OrigTitleLangID":15,"DateLastModified":{"date":"2026-06-14 01:32:06.239593","timezone_type":1,"timezone":"+02:00"},"UserAccessRight":null,"UserAccID":null,"AuthorKeywords":"Lophotrochozoa, Dicyemida, Orthonectida, Mesozoa, phylogenomics, LBA","OtherDescriptors":null,"Notes":null,"AnaPub":2022,"MonPub":null,"DateUpdate":"2022-08-10","DateCreate":"2022-08-09","SecASFANote":null,"ConfID":null,"PeerRev":1,"VlizCoreFlag":1,"WoScode":"WOS:000886359300004","VABBcode":null,"OpenAcc":0,"DOI":"10.1098/rspb.2022.0683"},"refs":null,"anarec":{"AnaID":354776,"PubliDate":2022,"Pagination":"20220683","XtraPublOfAnaID":null,"ISBN":null,"Volume":"289","Issue":"1978","BRefMon":null,"BRefMonRR":null,"BRefXtra":null,"BRefXtraRR":null,"SerBRefID":204863,"SerRR":"Proceedings of the Royal Society of London. 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