{"refrec":{"BRefID":69182,"RR":"<b>Yeh, W.-J.; Chen, G.-Y.</b> (2004). Nuclear rDNA and internal transcribed spacer sequences clarify <i>Caulerpa racemosa</i> vars. from other <i>Caulerpa</i> species. <i>Aquat. Bot. 80(3)</i>: 193-207. <a href=\"https://dx.doi.org/10.1016/j.aquabot.2004.07.008\" target=\"_blank\">https://dx.doi.org/10.1016/j.aquabot.2004.07.008</a>","BEntID":65338,"PublicFlag":1,"CheckedFlag":1,"wosflag":1,"vabbflag":0,"RefStringPartII":". <i>Aquat. Bot. 80(3)</i>: 193-207. <a href=\"https://dx.doi.org/10.1016/j.aquabot.2004.07.008\" target=\"_blank\">https://dx.doi.org/10.1016/j.aquabot.2004.07.008</a>","DocTypID":8,"DocType":"Journal article","MarineFlag":1,"FreshFlag":0,"BrackishFlag":0,"TerrestrialFlag":0,"Authorstring":"Yeh, W.-J.; Chen, G.-Y.","OrigTitleTranslFlag":0,"Authorstringtrunc":"Yeh, W.-J.; Chen, G.-Y.","Englishabstract":"<i>Caulerpa</i> species exhibit a high degree of morphological variation making some species difficult to define. Taiwan has <i>Caulerpa</i> species indigenous to its northern and southern seashores. The aim of this study was to determine phylogenetic and systematic relationships among <i>Caulerpa</i> species and to establish baseline DNA signature sequences for Taiwanese <i>Caulerpa</i> species with nuclear rDNA and ITS sequences. <i>Caulerpa serrulata, Caulerpa webbiana, Caulerpa cupressoides</i> and <i>Caulerpa racemosa</i> vars. <i>microphysa, macrophysa, peltata</i> and <i>laetevirens</i> were investigated in the present study. rDNA sequences of 872-1124 bp were amplified from nuclear DNA of 11 individual plants from each of the seven <i>Caulerpa</i> taxa, using the polymerase chain reaction (PCR). The amplified sequences were aligned and compared with those of other <i>Caulerpa</i> taxa. The sequence similarity was highest among specimens of <i>C. racemosa</i> var. <i>peltata</i> and var. <i>laetevirens</i> with less similarity between <i>C. racemosa</i> var.<i>microphysa</i> and var. <i>macrophysa</i> as well as <i>C. cupressoides, C. serrulata</i> and <i>C. webbiana</i>. Phylogenetic trees, inferred from neighbor-joining (N-J) and maximum parsimony (MP) analyses of the entire aligned sequence data set, reveal that specimens of <i>C. racemosa</i> var. <i>peltata</i> and var. <i>laetevirens</i> are closely related. Based on the present analyses, <i>C. racemosa</i> var. <i>laetevirens</i>, var. <i>peltata</i>, and var. <i>turbinata</i> are morphological variants of a single species. Phylogenetic trees with 90 and 100% bootstrap values highly support the placement of <i>C. racemosa</i> var. <i>microphysa</i> as a distinct species within <i>Caulerpa</i>. We conclude that nuclear rDNA and ITS sequences are useful for the identification of <i>Caulerpa</i> algae at the species level and for distinguishing <i>C. racemosa</i> vars. from other <i>Caulerpa</i> species.","AbstractOtherLang":null,"BibLvlCode":"AS","StandardTitle":"Nuclear rDNA and internal transcribed spacer sequences clarify <i>Caulerpa racemosa</i> vars. from other <i>Caulerpa</i> species","OrigTitleLangCode":"en","OrigTitleLangCodeExtended":"eng","OrigTitleLangID":15,"DateLastModified":{"date":"2026-04-26 01:31:11.870436","timezone_type":1,"timezone":"+02:00"},"UserAccessRight":null,"UserAccID":null,"AuthorKeywords":"Caulerpa; rDNA gene sequence; internal transcribed spacer (ITS);Molecular phylogeny; Taiwan","OtherDescriptors":"Caulerpa; rDNA gene sequence; Internal transcribed spacer (ITS); Molecular phylogeny; Taiwan","Notes":null,"AnaPub":2004,"MonPub":null,"DateUpdate":"2020-10-06","DateCreate":"2005-01-04","SecASFANote":null,"ConfID":null,"PeerRev":1,"VlizCoreFlag":1,"WoScode":"WOS:000225983300003","VABBcode":null,"OpenAcc":0,"DOI":"10.1016/j.aquabot.2004.07.008"},"refs":null,"anarec":{"AnaID":69182,"PubliDate":2004,"Pagination":"193-207","XtraPublOfAnaID":null,"ISBN":null,"Volume":"80","Issue":"3","BRefMon":null,"BRefMonRR":null,"BRefXtra":null,"BRefXtraRR":null,"SerBRefID":42195,"SerRR":"Aquatic Botany. 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