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Rapid quantification of sequence repeats to resolve the size, structure and contents of bacterial genomes.

Identifieur interne : 001C29 ( PubMed/Corpus ); précédent : 001C28; suivant : 001C30

Rapid quantification of sequence repeats to resolve the size, structure and contents of bacterial genomes.

Auteurs : David Williams ; William L. Trimble ; Meghan Shilts ; Folker Meyer ; Howard Ochman

Source :

RBID : pubmed:23924250

English descriptors

Abstract

The numerous classes of repeats often impede the assembly of genome sequences from the short reads provided by new sequencing technologies. We demonstrate a simple and rapid means to ascertain the repeat structure and total size of a bacterial or archaeal genome without the need for assembly by directly analyzing the abundances of distinct k-mers among reads.

DOI: 10.1186/1471-2164-14-537
PubMed: 23924250

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pubmed:23924250

Le document en format XML

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<name sortKey="Trimble, William L" sort="Trimble, William L" uniqKey="Trimble W" first="William L" last="Trimble">William L. Trimble</name>
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<div type="abstract" xml:lang="en">The numerous classes of repeats often impede the assembly of genome sequences from the short reads provided by new sequencing technologies. We demonstrate a simple and rapid means to ascertain the repeat structure and total size of a bacterial or archaeal genome without the need for assembly by directly analyzing the abundances of distinct k-mers among reads.</div>
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<AbstractText Label="BACKGROUND" NlmCategory="BACKGROUND">The numerous classes of repeats often impede the assembly of genome sequences from the short reads provided by new sequencing technologies. We demonstrate a simple and rapid means to ascertain the repeat structure and total size of a bacterial or archaeal genome without the need for assembly by directly analyzing the abundances of distinct k-mers among reads.</AbstractText>
<AbstractText Label="RESULTS" NlmCategory="RESULTS">The sensitivity of this procedure to resolve variation within a bacterial species is demonstrated: genome sizes and repeat structure of five environmental strains of E. coli from short Illumina reads were estimated by this method, and total genome sizes corresponded well with those obtained for the same strains by pulsed-field gel electrophoresis. In addition, this approach was applied to read-sets for completed genomes and shown to be accurate over a wide range of microbial genome sizes.</AbstractText>
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