breseq  version 0.27.1  revision 87c22d663cc3
mutation predictions | marginal predictions | summary statistics | genome diff | command line log

Read File Information

read filereadsbasespassed filtersaveragelongestmapped
errorsSample1_S1_L001_R2_001414,29062,060,307100.0%149.8 bases151 bases98.5%
errorsSample1_S1_L001_R1_001414,39462,088,202100.0%149.8 bases151 bases99.1%
total828,684124,148,509100.0%149.8 bases151 bases98.8%

Reference Sequence Information

seq idlengthfit meanfit dispersion% mapped readsdescription
coveragedistributionNC_0009134,641,65226.32.2100.0%Escherichia coli str. K-12 substr. MG1655, complete genome.
total4,641,652100.0%

fit dispersion is the ratio of the variance to the mean for the negative binomial fit. It is =1 for Poisson and >1 for over-dispersed data.

New Junction Evidence

Junction Candidates Tested

optionlimitactual
Number of alignment pairs examined for constructing junction candidates≤ 1000004709
Coverage evenness (position-hash) score of junction candidates≥ 2≥ 2
Test this many junction candidates (n). May be smaller if not enough passed the coverage evenness threshold100 ≤ n ≤ 500078
Total length of all junction candidates (factor times the reference genome length)≤ 0.10.005

Junction Skew Score Calculation

reference sequencepr(no read start)
NC_0009130.93016

pr(no read start) is the probability that there will not be an aligned read whose first base matches a given position on a given strand.

Final Junction Predictions

optionvalue
Coverage evenness (position-hash) score of predicted junctions must be≥ 3
Skew score of predicted junction (−log10 probability of unusual coverage evenness) must be≤ 3
Number of bases that at least one read must overlap each uniquely aligned side of a predicted junction≥ 1

Read Alignment Evidence

optionvalue
ModeConsensus/Mixed Base
Ploidy1 (haploid)
Consensus mutation E-value cutoff10
Consensus frequency cutoff0.8
Consensus minimum coverage each strandOFF
Polymorphism E-value cutoff10
Polymorphism frequency cutoff0.2
Polymorphism minimum coverage each strandOFF
Polymorphism bias cutoffOFF
Predict indel polymorphismsYES
Skip indel polymorphisms in homopolymers runs ofOFF
Skip base substitutions when they create a homopolymer flanked on each side byOFF

Execution Times

stepstartendelapsed
Read and reference sequence file input11:56:59 20 Apr 201611:57:17 20 Apr 201618 seconds
Read alignment to reference genome11:57:17 20 Apr 201611:58:30 20 Apr 20161 minute 13 seconds
Preprocessing alignments for candidate junction identification11:58:30 20 Apr 201611:58:54 20 Apr 201624 seconds
Preliminary analysis of coverage distribution11:58:54 20 Apr 201611:59:46 20 Apr 201652 seconds
Identifying junction candidates11:59:46 20 Apr 201611:59:46 20 Apr 20160 seconds
Re-alignment to junction candidates11:59:46 20 Apr 201611:59:57 20 Apr 201611 seconds
Resolving alignments with junction candidates11:59:57 20 Apr 201612:00:34 20 Apr 201637 seconds
Creating BAM files12:00:34 20 Apr 201612:01:04 20 Apr 201630 seconds
Tabulating error counts12:01:04 20 Apr 201612:01:48 20 Apr 201644 seconds
Re-calibrating base error rates12:01:48 20 Apr 201612:01:51 20 Apr 20163 seconds
Examining read alignment evidence12:01:51 20 Apr 201612:08:47 20 Apr 20166 minutes 56 seconds
Polymorphism statistics12:08:47 20 Apr 201612:08:47 20 Apr 20160 seconds
Output12:08:47 20 Apr 201612:09:13 20 Apr 201626 seconds
Total 12 minutes 14 seconds