title: [Diversity of bacteria at various depths in the southern part of lake Baikal as detected by 16S rRNA sequencing].
abstract: Phylogenetic analysis of the bacterial community inhabiting the water of Lake Baikal was performed on the basis of 16S rRNA sequencing. The composition of the bacterial community was shown to vary significantly with depth. Cyanobacteria were dominant species at the surface of the lake. At a moderate depth (400 m), actinomycete relatives were most abundant. At a great depth and near the bottom, the community was composed mainly of proteobacteria and cyanobacteria (the latter are probably brought from the surface layers by vertical near-shore water fluxes). Most of the bacterial 16S rRNA sequences detected exhibited low similarity to those known and formed separate clusters in the phylogenetic tree, which may indicate the endemic nature of the corresponding bacteria.
authors.affiliation: Institute of Limnology, Siberian Division, Russian Academy of Sciences, Irkutsk, Russia.
authors.forename: L Ia
authors.initials: LIa
authors.lastname: Denisova
authors.forename: N L
authors.initials: NL
authors.lastname: Bel'kova
authors.forename: I I
authors.initials: II
authors.lastname: Tulokhonov
authors.forename: E F
authors.initials: EF
authors.lastname: Zaĭchikov
mesh_terms: D001419:Bacteria / Q000235:genetics*; D014644:Genetic Variation; D010802:Phylogeny; D012329:RNA, Bacterial / Q000235:genetics*; D012336:RNA, Ribosomal, 16S / Q000235:genetics*; D012426:Russia; D014871:Water Microbiology
chemical_list: D012329:RNA, Bacterial; D012336:RNA, Ribosomal, 16S
vernacular_title: Bioraznoobrazie bakteriĭ na razlichnykh glubinakh iuzhnoĭ kotloviny ozera Baĭkal, vyiavlennoe po posledovatel'nostiam 16S rRNK.