{"refrec":{"BRefID":140409,"RR":"<b>Nygren, A.; Eklöf, J.; Pleijel, F.</b> (2009). Artic-boreal sibling species of <i>Paranaitis</i> (Polychaeta, Phyllodocidae). <i>Mar. Biol. Res. 5(4)</i>: 315-327. <a href=\"https://dx.doi.org/10.1080/17451000802441301\" target=\"_blank\">https://dx.doi.org/10.1080/17451000802441301</a>","BEntID":133882,"PublicFlag":1,"CheckedFlag":1,"wosflag":1,"vabbflag":null,"RefStringPartII":". <i>Mar. Biol. Res. 5(4)</i>: 315-327. <a href=\"https://dx.doi.org/10.1080/17451000802441301\" target=\"_blank\">https://dx.doi.org/10.1080/17451000802441301</a>","DocTypID":8,"DocType":"Journal article","MarineFlag":1,"FreshFlag":0,"BrackishFlag":0,"TerrestrialFlag":0,"Authorstring":"Nygren, A.; Eklöf, J.; Pleijel, F.","OrigTitleTranslFlag":0,"Authorstringtrunc":"Nygren, A. <i>et al.</i>","Englishabstract":"The phyllodocid polychaete <i>Paranaitis wahlbergi</i> occurs in Arctic and northern European boreal waters. Boreal populations are distinct from Arctic ones in having smaller maximal size and larger eggs; in all other respects we find them morphologically inseparable. Phylogenetic analyses and haplotype networks based on the mitochondrial genes <i>16S rDNA</i> and <i>COI</i>, and the nuclear genes <i>histone H3, ITS1, ITS2, 18S rDNA</i> and <i>28S rDNA D1-D2</i> region confirm our suspicion that Arctic and boreal populations belong to different species. We describe the boreal form as a new species, <i>Paranaitis katoi</i>. It is presently known from the Swedish and Norwegian west coasts and from Scotland. Calibrated rates for COI indicate that <i>P. katoi</i> sp. nov. and <i>P. wahlbergi</i> may have been separate for as long as 29-56 million years.","AbstractOtherLang":null,"BibLvlCode":"AS","StandardTitle":"Artic-boreal sibling species of <i>Paranaitis</i> (Polychaeta, Phyllodocidae)","OrigTitleLangCode":"en","OrigTitleLangCodeExtended":"eng","OrigTitleLangID":15,"DateLastModified":{"date":"2026-06-14 01:31:19.032152","timezone_type":1,"timezone":"+02:00"},"UserAccessRight":null,"UserAccID":null,"AuthorKeywords":"Molecular data; new species; Paranaitis; Phyllodocidae; phylogeneticanalysis; taxonomy","OtherDescriptors":null,"Notes":null,"AnaPub":2009,"MonPub":null,"DateUpdate":"2018-02-13","DateCreate":"2009-08-12","SecASFANote":null,"ConfID":null,"PeerRev":1,"VlizCoreFlag":1,"WoScode":"WOS:000268245100002","VABBcode":null,"OpenAcc":0,"DOI":"10.1080/17451000802441301"},"refs":null,"anarec":{"AnaID":140409,"PubliDate":2009,"Pagination":"315-327","XtraPublOfAnaID":null,"ISBN":null,"Volume":"5","Issue":"4","BRefMon":null,"BRefMonRR":null,"BRefXtra":null,"BRefXtraRR":null,"SerBRefID":72882,"SerRR":"Marine Biology Research. 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