VSEARCH: 100% not merged
Problem during the merging of reads from run MB0922AE2
Vsearch:
- version: v2.22.1
- shell: vsearch --threads 4 --fastq_mergepairs /media/superdisk/edna/donnees/ngs/CEFE_Port/VL226___MB0922AE2___R1.fastq.gz --reverse /media/superdisk/edna/donnees/ngs/CEFE_Port/VL226___MB0922AE2___R2.fastq.gz --fastqout /media/superdisk/edna/working/MedPorteDNA/snakemake_rapidrun_swarm_teleo/results/swarm/intermediates/02_merge_fastq/VL226___MB0922AE2__.fastq --fastq_ascii 33 --fastq_allowmergestagger 2> /media/superdisk/edna/working/MedPorteDNA/snakemake_rapidrun_swarm_teleo/logs/swarm/intermediates/02_merge_fastq/VL226___MB0922AE2__.log
Log: /media/superdisk/edna/working/MedPorteDNA/snakemake_rapidrun_swarm_teleo/logs/swarm/intermediates/02_merge_fastq/VL226___MB0922AE2__.log
12453407 Pairs
3827 Merged (0.0%)
12449580 Not merged (100.0%)
Pairs that failed merging due to various reasons:
38151 too few kmers found on same diagonal
91 multiple potential alignments
42 too many differences
12411296 alignment score too low, or score drop too high
Statistics of all reads:
150.00 Mean read length
Statistics of merged reads:
53.85 Mean fragment length
91.64 Standard deviation of fragment length
0.13 Mean expected error in forward sequences
0.13 Mean expected error in reverse sequences
0.30 Mean expected error in merged sequences
0.34 Mean observed errors in merged region of forward sequences
0.16 Mean observed errors in merged region of reverse sequences
0.49 Mean observed errors in merged region