{"refrec":{"BRefID":55565,"RR":"<b>Féral, J.-P.; Philippe, H.</b> (1994). Phylogénie moléculaire de Polychètes Alvinellidae des sources hydrothermales actives de l'océan Pacifique. <i>C. R. Acad. Sci., Sér. 3 Sci. Vie 317</i>: 771-779","BEntID":53232,"PublicFlag":1,"CheckedFlag":0,"wosflag":0,"vabbflag":null,"RefStringPartII":". <i>C. R. Acad. Sci., Sér. 3 Sci. Vie 317</i>: 771-779","DocTypID":8,"DocType":"Journal article","MarineFlag":1,"FreshFlag":0,"BrackishFlag":0,"TerrestrialFlag":0,"Authorstring":"Féral, J.-P.; Philippe, H.","OrigTitleTranslFlag":1,"Authorstringtrunc":"Féral, J.-P.; Philippe, H.","Englishabstract":"Phylogenetic trees were inferred by both distance and parsimony methods, using aligned sequences of the 28S rRNA 5'-end of 17 Polychaete species. Alvinellidae is a monophyletic taxon among the Terebellomorpha which also make a monophyletic group. Alvinella (2/2 species studied) is also a monophyletic taxon. The Paralvinella species (3/9 species) we studied cluster also in a monophyletic group. The sub(D1) domain of Alvinella is longer than in other Polychaetes (30 nucleotides more). This is explained by the insertions of groups of 3 to 11 nucleotides whose fixation probably did not change so, much rRNA conformation. This fixation could have been promoted by the necessity of fast recolonizations of neu active hydrothermal vents (spatial isolation and ephemeral habitat). The comparison of the studied sequences of Polychaetes with those of coastal temperare and polar marine invertebrates shows that the relatively high Cytosine-Guanosine (C+G) level found in alvinellid sequences is not directly related to the particular characteristics of the hydrothermal environment as recently hypothetized.","AbstractOtherLang":null,"BibLvlCode":"AS","StandardTitle":"Phylogénie moléculaire de Polychètes Alvinellidae des sources hydrothermales actives de l'océan Pacifique","OrigTitleLangCode":"fr","OrigTitleLangCodeExtended":"fre","OrigTitleLangID":22,"DateLastModified":{"date":"2024-12-10 01:33:17.368041","timezone_type":1,"timezone":"+01:00"},"UserAccessRight":null,"UserAccID":null,"AuthorKeywords":null,"OtherDescriptors":null,"Notes":null,"AnaPub":1994,"MonPub":null,"DateUpdate":"2003-12-01","DateCreate":"2003-12-01","SecASFANote":null,"ConfID":null,"PeerRev":1,"VlizCoreFlag":1,"WoScode":null,"VABBcode":null,"OpenAcc":0},"refs":null,"anarec":{"AnaID":55565,"PubliDate":1994,"Pagination":"771-779","XtraPublOfAnaID":null,"ISBN":null,"Volume":"317","Issue":null,"BRefMon":null,"BRefMonRR":null,"BRefXtra":null,"BRefXtraRR":null,"SerBRefID":42758,"SerRR":"Comptes Rendus de l'Académie des Sciences. 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