Title
Detecting SNPs and estimating allele frequencies in clonal bacterial populations by sequencing pooled DNA
Abstract
Summary: Here, we present a method for estimating the frequencies of SNP alleles present within pooled samples of DNA using high-throughput short-read sequencing. The method was tested on real data from six strains of the highly monomorphic pathogen Salmonella Paratyphi A, sequenced individually and in a pool. A variety of read mapping and quality-weighting procedures were tested to determine the optimal parameters, which afforded ≥80% sensitivity of SNP detection and strong correlation with true SNP frequency at poolwide read depth of 40×, declining only slightly at read depths 20–40×. Availability: The method was implemented in Perl and relies on the opensource software Maq for read mapping and SNP calling. The Perl script is freely available from ftp://ftp.sanger.ac.uk/pub/pathogens/pools/. Contact: kh2@sanger.ac.uk Supplementary information:Supplementary data are available at Bioinformatics online.
Year
DOI
Venue
2009
10.1093/bioinformatics/btp344
Bioinformatics
Keywords
Field
DocType
allele frequency,dna,computational biology,high throughput,gene frequency
Population,Allele,Biology,Allele frequency,DNA,Single-nucleotide polymorphism,Bioinformatics,Genetics,SNP,Perl
Journal
Volume
Issue
ISSN
25
16
1367-4803
Citations 
PageRank 
References 
2
0.67
0
Authors
7
Name
Order
Citations
PageRank
Kathryn E. Holt1202.89
Yik Y Teo2306.81
Heng Li33109302.06
S. Nair441.01
Gordon Dougan521.00
John Wain620.67
Julian Parkhill729135.97