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

Read File Information

read filereadsbasespassed filtersaveragelongestmapped
errorsSample7_S7_L001_R2_001811,564121,200,31599.9%149.3 bases151 bases96.2%
errorsSample7_S7_L001_R1_001811,970121,256,789100.0%149.3 bases151 bases99.2%
total1,623,534242,457,10499.9%149.3 bases151 bases97.7%

Reference Sequence Information

seq idlengthfit meanfit dispersion% mapped readsdescription
coveragedistributionNC_0009134,641,65251.22.2100.0%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≤ 10000010225
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 ≤ 5000269
Total length of all junction candidates (factor times the reference genome length)≤ 0.10.018

Junction Skew Score Calculation

reference sequencepr(no read start)
NC_0009130.88288

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 input10:56:14 20 Apr 201610:56:47 20 Apr 201633 seconds
Read alignment to reference genome10:56:47 20 Apr 201610:58:28 20 Apr 20161 minute 41 seconds
Preprocessing alignments for candidate junction identification10:58:28 20 Apr 201610:59:05 20 Apr 201637 seconds
Preliminary analysis of coverage distribution10:59:05 20 Apr 201611:00:39 20 Apr 20161 minute 34 seconds
Identifying junction candidates11:00:39 20 Apr 201611:00:40 20 Apr 20161 second
Re-alignment to junction candidates11:00:40 20 Apr 201611:01:01 20 Apr 201621 seconds
Resolving alignments with junction candidates11:01:01 20 Apr 201611:02:25 20 Apr 20161 minute 24 seconds
Creating BAM files11:02:25 20 Apr 201611:03:45 20 Apr 20161 minute 20 seconds
Tabulating error counts11:03:45 20 Apr 201611:05:09 20 Apr 20161 minute 24 seconds
Re-calibrating base error rates11:05:09 20 Apr 201611:05:10 20 Apr 20161 second
Examining read alignment evidence11:05:10 20 Apr 201611:18:07 20 Apr 201612 minutes 57 seconds
Polymorphism statistics11:18:07 20 Apr 201611:18:07 20 Apr 20160 seconds
Output11:18:07 20 Apr 201611:18:44 20 Apr 201637 seconds
Total 22 minutes 30 seconds