{"refrec":{"BRefID":437590,"RR":"<b>van der Loos, L.M.; Van de Weghe, L.; Knoop, J.; Daniels, B.; D’Hondt, S.; Karremans, M.; Perk, F.; Steinhagen, S.; Leliaert, F.; De Clerck, O.</b> (2025). Incorporating historic specimens to reassess <i>Ulva</i> diversity in the Netherlands and Belgium. <i>Taxon 74(6)</i>: 1314-1334. <a href=\"https://dx.doi.org/10.1002/tax.70058\" target=\"_blank\">https://dx.doi.org/10.1002/tax.70058</a>","BEntID":435421,"PublicFlag":1,"CheckedFlag":0,"wosflag":1,"vabbflag":0,"RefStringPartII":". <i>Taxon 74(6)</i>: 1314-1334. <a href=\"https://dx.doi.org/10.1002/tax.70058\" target=\"_blank\">https://dx.doi.org/10.1002/tax.70058</a>","DocTypID":8,"DocType":"Journal article","MarineFlag":0,"FreshFlag":0,"BrackishFlag":0,"TerrestrialFlag":0,"Authorstring":"van der Loos, L.M.; Van de Weghe, L.; Knoop, J.; Daniels, B.; D’Hondt, S.; Karremans, M.; Perk, F.; Steinhagen, S.; Leliaert, F.; De Clerck, O.","OrigTitleTranslFlag":0,"Authorstringtrunc":"van der Loos, L.M. <i>et al.</i>","Englishabstract":"<span style=\"background-color:rgb(255,255,255);color:rgb(0,0,0);\">While DNA-assisted identifications have significantly enhanced our understanding of </span><i>Ulva</i><span style=\"background-color:rgb(255,255,255);color:rgb(0,0,0);\">&nbsp;diversity, they have also widened the gap between historical taxonomic and floristic studies based solely on morphology and contemporary studies utilizing DNA sequences. To bridge this gap, we compared historical assessments of </span><i>Ulva</i><span style=\"background-color:rgb(255,255,255);color:rgb(0,0,0);\"> sensu lato diversity in the Netherlands and Belgium with molecular-based identifications. By combining DNA barcoding of recent field collections with NGS data from historical herbarium voucher specimens, we confirmed the presence of 17 </span><i>Ulva</i><span style=\"background-color:rgb(255,255,255);color:rgb(0,0,0);\"> species using </span><i>tufA</i><span style=\"background-color:rgb(255,255,255);color:rgb(0,0,0);\"> barcoding, including three unidentified clades. Additionally, we identified </span><i>Blidingia marginata</i><span style=\"background-color:rgb(255,255,255);color:rgb(0,0,0);\">, </span><i>B.&nbsp;minima</i><span style=\"background-color:rgb(255,255,255);color:rgb(0,0,0);\">, </span><i>Monostroma grevillei</i><span style=\"background-color:rgb(255,255,255);color:rgb(0,0,0);\">, </span><i>Umbraulva dangeardii</i><span style=\"background-color:rgb(255,255,255);color:rgb(0,0,0);\">, and a taxonomic entity that matched reference sequences of both </span><i>Gayralia oxysperma</i><span style=\"background-color:rgb(255,255,255);color:rgb(0,0,0);\"> and </span><i>Kornmannia leptoderma</i><span style=\"background-color:rgb(255,255,255);color:rgb(0,0,0);\">. Of the 24 species previously reported in the southern North Sea based on published literature, only 13 species were molecularly confirmed, highlighting the substantial discrepancy between traditional and DNA-based species identifications in this group of algae. Integrating historical herbarium vouchers into our biodiversity assessment revealed that this mismatch was largely due to misinterpretation of names and to a lesser extent changing species concepts. Plastid genome and nuclear ribosomal DNA assemblies of </span><i>Ulva intestinaloides</i><span style=\"background-color:rgb(255,255,255);color:rgb(0,0,0);\"> and </span><i>U.&nbsp;pseudolinza</i><span style=\"background-color:rgb(255,255,255);color:rgb(0,0,0);\"> type material showed that their ITS, </span><i>rbcL</i><span style=\"background-color:rgb(255,255,255);color:rgb(0,0,0);\">, and </span><i>tufA</i><span style=\"background-color:rgb(255,255,255);color:rgb(0,0,0);\"> sequences were identical or highly similar to reference sequences of </span><i>U.&nbsp;compressa</i><span style=\"background-color:rgb(255,255,255);color:rgb(0,0,0);\"> and </span><i>U.&nbsp;intestinalis</i><span style=\"background-color:rgb(255,255,255);color:rgb(0,0,0);\">, respectively, indicating that they are synonyms of these species. Finally, we report four new species records for the southern North Sea: </span><i>Ulva capillata</i><span style=\"background-color:rgb(255,255,255);color:rgb(0,0,0);\"> and </span><i>Umbraulva dangeardii</i><span style=\"background-color:rgb(255,255,255);color:rgb(0,0,0);\"> that are native to the Northeast Atlantic, and the non-indigenous </span><i>Ulva californica</i><span style=\"background-color:rgb(255,255,255);color:rgb(0,0,0);\"> and </span><i>U.&nbsp;shanxiensis.</i><span style=\"background-color:rgb(255,255,255);color:rgb(0,0,0);\"> The latter is a freshwater species that has not been recorded outside China until now. The discovery of unidentified clades and non-native species in the southern North Sea emphasizes the importance of molecular monitoring in uncovering cryptic diversity and improving our understanding of </span><i>Ulva</i><span style=\"background-color:rgb(255,255,255);color:rgb(0,0,0);\"> biodiversity.</span>","AbstractOtherLang":null,"BibLvlCode":"AS","StandardTitle":"Incorporating historic specimens to reassess <i>Ulva</i> diversity in the Netherlands and Belgium","OrigTitleLangCode":"en","OrigTitleLangCodeExtended":"eng","OrigTitleLangID":15,"DateLastModified":{"date":"2026-02-18 01:33:05.282567","timezone_type":1,"timezone":"+01:00"},"UserAccessRight":null,"UserAccID":null,"AuthorKeywords":"biodiversity; DNA barcoding; historical vouchers; taxonomy; Ulvales","OtherDescriptors":null,"Notes":null,"AnaPub":2025,"MonPub":null,"DateUpdate":"2026-02-11","DateCreate":"2026-02-11","SecASFANote":null,"ConfID":null,"PeerRev":1,"VlizCoreFlag":1,"WoScode":null,"VABBcode":null,"OpenAcc":1,"DOI":"10.1002/tax.70058"},"refs":null,"anarec":{"AnaID":437590,"PubliDate":2025,"Pagination":"1314-1334","XtraPublOfAnaID":null,"ISBN":null,"Volume":"74","Issue":"6","BRefMon":null,"BRefMonRR":null,"BRefXtra":null,"BRefXtraRR":null,"SerBRefID":43954,"SerRR":"Taxon. International Bureau for Plant Taxonomy and Nomenclature: Utrecht.  ISSN 0040-0262; e-ISSN 1996-8175","StandardTitleSer":"Taxon","ISSN":"0040-0262","AbbrevSer":"Taxon","StandardTitleMon":null,"StartPage":1314,"Pages":21,"ToPubliDate":null,"BRefBibLvlCode":"S","SerNotes":null},"monrec":null,"serrec":null,"relations":null,"relationsRev":null,"addrec":null,"othpubs":null,"ownerships":null,"authors":[{"AutName":"van der Loos","Firstname":"Luna","Initials":"L.M.","Affiliation":null,"Discriminator":null,"CorporateFlag":0,"BEntID":435421,"AutID":518531,"OrderNr":1,"DegrID":null,"EditorFlag":0,"CorrespFlag":0,"IllustratorFlag":0,"ReviserFlag":0,"TranslatorFlag":0,"InsAcronym":null,"InsFSN":null,"ORCID":"0000-0003-3686-2844","PersID":38604,"InsID":null},{"AutName":"Van de Weghe","Firstname":"Lotte","Initials":"L.","Affiliation":"Center for Molecular Phylogenetics and Evolution, Ghent University","Discriminator":null,"CorporateFlag":0,"BEntID":435421,"AutID":553836,"OrderNr":2,"DegrID":null,"EditorFlag":0,"CorrespFlag":0,"IllustratorFlag":0,"ReviserFlag":0,"TranslatorFlag":0,"InsAcronym":null,"InsFSN":null,"ORCID":"0009-0006-0288-0867","PersID":45054,"InsID":null},{"AutName":"Knoop","Firstname":"Jessica","Initials":"J.","Affiliation":"EDS","Discriminator":null,"CorporateFlag":0,"BEntID":435421,"AutID":617429,"OrderNr":3,"DegrID":null,"EditorFlag":0,"CorrespFlag":0,"IllustratorFlag":0,"ReviserFlag":0,"TranslatorFlag":0,"InsAcronym":"NIOZ","InsFSN":"Koninklijk Nederlands Instituut voor Onderzoek der Zee","ORCID":null,"PersID":46233,"InsID":397},{"AutName":"Daniels","Firstname":"Berdien","Initials":"B.","Affiliation":"Meise Botanic Garden","Discriminator":null,"CorporateFlag":0,"BEntID":435421,"AutID":606536,"OrderNr":4,"DegrID":null,"EditorFlag":0,"CorrespFlag":0,"IllustratorFlag":0,"ReviserFlag":0,"TranslatorFlag":0,"InsAcronym":null,"InsFSN":"Vlaamse overheid; 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