{"refrec":{"BRefID":289321,"RR":"<b>Bendif, E.M.; Probert, I.; Schroeder, D.C.; de Vargas, C.</b> (2013). On the description of <i>Tisochrysis lutea</i> gen. nov. sp. nov. and <i>Isochrysis nuda</i> sp. nov. in the Isochrysidales, and the transfer of <i>Dicrateria</i> to the Prymnesiales (Haptophyta). <i>J. Appl. Phycol. 25(6)</i>: 1763-1776. <a href=\"https://dx.doi.org/10.1007/s10811-013-0037-0\" target=\"_blank\">https://dx.doi.org/10.1007/s10811-013-0037-0</a>","BEntID":281358,"PublicFlag":1,"CheckedFlag":1,"wosflag":1,"vabbflag":null,"RefStringPartII":". <i>J. Appl. Phycol. 25(6)</i>: 1763-1776. <a href=\"https://dx.doi.org/10.1007/s10811-013-0037-0\" target=\"_blank\">https://dx.doi.org/10.1007/s10811-013-0037-0</a>","DocTypID":8,"DocType":"Journal article","MarineFlag":1,"FreshFlag":0,"BrackishFlag":0,"TerrestrialFlag":0,"Authorstring":"Bendif, E.M.; Probert, I.; Schroeder, D.C.; de Vargas, C.","OrigTitleTranslFlag":0,"Authorstringtrunc":"Bendif, E.M. <i>et al.</i>","Englishabstract":"The Isochrysidaceae is a family of non-calcifying organisms within the haptophyte order Isochrysidales. <i>Isochrysis galbana</i>, a species widely used as a food source in aquaculture, is the best-known representative of this family that contains three genera but only six described species. We sequenced partial nuclear small subunit (SSU) and large subunit rDNA and mitochondrial cytochrome oxidase 1 genes of 34 isochrysidacean culture strains (including authentic strains when available) and compared molecular phylogenetic inferences with cytological and ultrastructural observations. The isochrysidaceaen culture strain <i>Isochrysis</i> affinis <i>galbana</i> (Tahiti isolate), widely used in aquaculture and commonly known as T-Iso, is clearly genetically distinct from <i>Isochrysis</i><i>galbana</i>, despite seemingly being morphologically identical. A strain with a similar ultrastructure to that of <i>Isochrysis galbana</i> except for the lack of body scales had sequences that were more similar to but still distinct from those of <i>Isochrysis galbana. Dicrateria inornata</i>, a species that lacks body scales, is classified within the Isochrysidaceae, but the SSU rDNA sequence of the authentic strain of this species matches that of <i>Imantonia rotunda</i> within another haptophye order, the Prymnesiales. <i>D. inornata</i> and <i>Imantonia rotunda</i> have similar ultrastructure except for the respective absence/presence of scales. These results lead us to propose the erection of one new genus (<i>Tisochrysis</i> gen. nov.) and two new species (<i>Tisochrysis lutea</i> sp. nov. and <i>Isochrysis nuda</i> sp. nov.). <i>D. inornata</i> is reclassified within the Prymnesiales, and <i>Imantonia rotunda</i> is transferred to this genus (<i>Dicrateria rotunda</i> comb. nov.).","AbstractOtherLang":null,"BibLvlCode":"AS","StandardTitle":"On the description of <i>Tisochrysis lutea</i> gen. nov. sp. nov. and <i>Isochrysis nuda</i> sp. nov. in the Isochrysidales, and the transfer of <i>Dicrateria</i> to the Prymnesiales (Haptophyta)","OrigTitleLangCode":"en","OrigTitleLangCodeExtended":"eng","OrigTitleLangID":15,"DateLastModified":{"date":"2026-04-17 01:32:16.039054","timezone_type":1,"timezone":"+02:00"},"UserAccessRight":null,"UserAccID":null,"AuthorKeywords":"Dicrateria; Imantonia; Isochrysidaceae; Isochrysis galbana; Phylogeny;Taxonomy; Ultrastructure","OtherDescriptors":null,"Notes":null,"AnaPub":2013,"MonPub":null,"DateUpdate":"2017-09-20","DateCreate":"2017-09-18","SecASFANote":null,"ConfID":null,"PeerRev":1,"VlizCoreFlag":1,"WoScode":"WOS:000326806400015","VABBcode":null,"OpenAcc":0,"DOI":"10.1007/s10811-013-0037-0"},"refs":null,"anarec":{"AnaID":289321,"PubliDate":2013,"Pagination":"1763-1776","XtraPublOfAnaID":null,"ISBN":null,"Volume":"25","Issue":"6","BRefMon":null,"BRefMonRR":null,"BRefXtra":null,"BRefXtraRR":null,"SerBRefID":43025,"SerRR":"Journal of Applied Phycology. 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