{"refrec":{"BRefID":130000,"RR":"<b>Casteleyn, G.; Chepurnov, V.A.; Leliaert, F.; Mann, D. G.; Bates, S. S.; Lundholm, N.; Rhodes, L.; Sabbe, K.; Vyverman, W.</b> (2009). <i>Pseudo-nitzschia pungens</i> (Bacillariophyceae): a cosmopolitan diatom species?, <b><i>in</i></b>: Casteleyn, G. <i>Species structure and biogeography of <i>Pseudo-nitzschia pungens</i> = Soortstructuur en biogeografie van <i>Pseudo-nitzschia pungens</i>.</i> pp. 37-64","BEntID":307002,"PublicFlag":1,"CheckedFlag":0,"wosflag":0,"vabbflag":0,"RefStringPartII":", <b><i>in</i></b>: Casteleyn, G. <i>Species structure and biogeography of <i>Pseudo-nitzschia pungens</i> = Soortstructuur en biogeografie van <i>Pseudo-nitzschia pungens</i>.</i> pp. 37-64","DocTypID":17,"DocType":"Book chapters","MarineFlag":1,"FreshFlag":0,"BrackishFlag":0,"TerrestrialFlag":0,"Authorstring":"Casteleyn, G.; Chepurnov, V.A.; Leliaert, F.; Mann, D. G.; Bates, S. S.; Lundholm, N.; Rhodes, L.; Sabbe, K.; Vyverman, W.","OrigTitleTranslFlag":0,"Authorstringtrunc":"Casteleyn, G. <i>et al.</i>","Englishabstract":"Genetic, reproductive and morphological variation were studied in 193 global strains of the marine diatom species <i>Pseudo-nitzschia pungens</i> (Grunow ex Cleve) Hasle to assess potential intraspecific variation and biogeographic distribution patterns. Genetic differentiation between allo- and sympatric strains was investigated using the ITS1-5.8S-ITS2 rDNA region. Three ITS clades were found. Clones of opposite mating type were sexually compatible within clades I or II, and viable F1 hybrid offspring were produced in crosses between them. The molecular differences between these clades were correlated with slight but consistent morphological differences. At present, nothing can be said about morphology and mating behavior for clade III clones because only ITS data were available. The three ITS clades showed different geographic distributions. Clade II was restricted to the NE Pacific, whereas clones belonging to clade III originated from geographically widely separated areas (Vietnam, China and Mexico). ITS clade I was recovered in all locations studied: the North Sea (Belgium, The Netherlands, France), the eastern and western N Atlantic (Spain, Canada), the NW and S Pacific (Japan, New Zealand) and the NE Pacific (Washington State). Clade I thus appears to be globally distributed in temperate coastal areas and provides the first strong evidence to date for the global distribution of a biologically, genetically and morphologically defined diatom species.","AbstractOtherLang":null,"BibLvlCode":"AM","StandardTitle":"<i>Pseudo-nitzschia pungens</i> (Bacillariophyceae): a cosmopolitan diatom species?","OrigTitleLangCode":"en","OrigTitleLangCodeExtended":"eng","OrigTitleLangID":15,"DateLastModified":{"date":"2025-07-02 08:33:14.980000","timezone_type":1,"timezone":"+00:00"},"UserAccessRight":null,"UserAccID":null,"AuthorKeywords":"Breeding test; Cosmopolitanism; Diatom; Genetic diversity; ITS rDNA; Pseudo-nitzschia; Secondary structure; Sexual reproduction","OtherDescriptors":null,"Notes":null,"AnaPub":2009,"MonPub":null,"DateUpdate":"2019-08-28","DateCreate":"2009-02-09","SecASFANote":null,"ConfID":null,"PeerRev":0,"VlizCoreFlag":1,"WoScode":null,"VABBcode":null,"OpenAcc":0},"refs":null,"anarec":{"AnaID":130000,"PubliDate":2009,"Pagination":"37-64","XtraPublOfAnaID":null,"ISBN":null,"Volume":null,"Issue":null,"BRefMon":129991,"BRefMonRR":"<B>Casteleyn, G.</B> (2009). Species structure and biogeography of <i>Pseudo-nitzschia pungens</i> = Soortstructuur en biogeografie van <i>Pseudo-nitzschia pungens</i>. PhD Thesis. Universiteit Gent; Vakgroep Biologie, Onderzoeksgroep Protistologie en Aquatische Ecologie: Gent. 201 pp.","BRefXtra":null,"BRefXtraRR":null,"SerBRefID":null,"SerRR":null,"StandardTitleSer":null,"ISSN":null,"AbbrevSer":null,"StandardTitleMon":"Species structure and biogeography of <i>Pseudo-nitzschia pungens</i> = Soortstructuur en biogeografie van <i>Pseudo-nitzschia pungens</i>","StartPage":37,"Pages":28,"ToPubliDate":null,"BRefBibLvlCode":"M","SerNotes":null,"AutString":"Casteleyn, G."},"monrec":null,"serrec":null,"relations":null,"relationsRev":[{"XBRefID":120146,"RefStrFull":"<b>Casteleyn, G.; Chepurnov, V.A.; Leliaert, F.; Mann, D. G.; Bates, S. 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