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Statements

Subject Item
n2:RIV%2F61388971%3A_____%2F13%3A00423805%21RIV14-MSM-61388971
rdf:type
n8:Vysledek skos:Concept
dcterms:description
16S ribosomal RNA currently represents the most important target of study in bacterial ecology. Its use for the description of bacterial diversity is, however, limited by the presence of variable copy numbers in bacterial genomes and sequence variation within closely related taxa or within a genome. Here we use the information from sequenced bacterial genomes to explore the variability of 16S rRNA sequences and copy numbers at various taxonomic levels and apply it to estimate bacterial genome and DNA abundances. In total, 7,081 16S rRNA sequences were in silico extracted from 1,690 available bacterial genomes (1-15 per genome). While there are several phyla containing low 16S rRNA copy numbers, in certain taxa, e. g., the Firmicutes and Gammaproteobacteria, the variation is large. Genome sizes are more conserved at all tested taxonomic levels than 16S rRNA copy numbers. Only a minority of bacterial genomes harbors identical 16S rRNA gene copies, and sequence diversity increases with increasing copy numbers 16S ribosomal RNA currently represents the most important target of study in bacterial ecology. Its use for the description of bacterial diversity is, however, limited by the presence of variable copy numbers in bacterial genomes and sequence variation within closely related taxa or within a genome. Here we use the information from sequenced bacterial genomes to explore the variability of 16S rRNA sequences and copy numbers at various taxonomic levels and apply it to estimate bacterial genome and DNA abundances. In total, 7,081 16S rRNA sequences were in silico extracted from 1,690 available bacterial genomes (1-15 per genome). While there are several phyla containing low 16S rRNA copy numbers, in certain taxa, e. g., the Firmicutes and Gammaproteobacteria, the variation is large. Genome sizes are more conserved at all tested taxonomic levels than 16S rRNA copy numbers. Only a minority of bacterial genomes harbors identical 16S rRNA gene copies, and sequence diversity increases with increasing copy numbers
dcterms:title
The Variability of the 16S rRNA Gene in Bacterial Genomes and Its Consequences for Bacterial Community Analyses The Variability of the 16S rRNA Gene in Bacterial Genomes and Its Consequences for Bacterial Community Analyses
skos:prefLabel
The Variability of the 16S rRNA Gene in Bacterial Genomes and Its Consequences for Bacterial Community Analyses The Variability of the 16S rRNA Gene in Bacterial Genomes and Its Consequences for Bacterial Community Analyses
skos:notation
RIV/61388971:_____/13:00423805!RIV14-MSM-61388971
n8:predkladatel
n9:ico%3A61388971
n3:aktivita
n6:P n6:I
n3:aktivity
I, P(LD12048), P(LD12050)
n3:cisloPeriodika
2
n3:dodaniDat
n14:2014
n3:domaciTvurceVysledku
n15:4747305 n15:7305834
n3:druhVysledku
n19:J
n3:duvernostUdaju
n13:S
n3:entitaPredkladatele
n11:predkladatel
n3:idSjednocenehoVysledku
113632
n3:idVysledku
RIV/61388971:_____/13:00423805
n3:jazykVysledku
n17:eng
n3:klicovaSlova
OPERON COPY NUMBER; MICROBIAL COMMUNITIES; MOLECULAR MARKERS
n3:klicoveSlovo
n5:OPERON%20COPY%20NUMBER n5:MICROBIAL%20COMMUNITIES n5:MOLECULAR%20MARKERS
n3:kodStatuVydavatele
US - Spojené státy americké
n3:kontrolniKodProRIV
[AA3C15A6C7F3]
n3:nazevZdroje
PLoS ONE
n3:obor
n12:EE
n3:pocetDomacichTvurcuVysledku
2
n3:pocetTvurcuVysledku
2
n3:projekt
n18:LD12048 n18:LD12050
n3:rokUplatneniVysledku
n14:2013
n3:svazekPeriodika
8
n3:tvurceVysledku
Baldrian, Petr Větrovský, Tomáš
n3:wos
000315519000169
s:issn
1932-6203
s:numberOfPages
10
n16:doi
10.1371/journal.pone.0057923