SUMMARISING RUN PARAMETERS ========================== Input filename: zr3644_7_2.fastq.gz Trimming mode: paired-end Trim Galore version: 0.6.10 Cutadapt version: 4.9 Python version: could not detect Number of cores used for trimming: 8 Quality Phred score cutoff: 20 Quality encoding type selected: ASCII+33 Unable to auto-detect most prominent adapter from the first specified file (count Nextera: 0, count smallRNA: 0, count Illumina: 0) Defaulting to Illumina universal adapter ( AGATCGGAAGAGC ). Specify -a SEQUENCE to avoid this behavior). Adapter sequence: 'AGATCGGAAGAGC' (Illumina TruSeq, Sanger iPCR; default (inconclusive auto-detection)) Maximum trimming error rate: 0.1 (default) Minimum required adapter overlap (stringency): 1 bp Minimum required sequence length for both reads before a sequence pair gets removed: 20 bp Running FastQC on the data once trimming has completed Output file will be GZIP compressed This is cutadapt 4.9 with Python 3.12.8 Command line parameters: -j 8 -e 0.1 -q 20 -O 1 -a AGATCGGAAGAGC zr3644_7_2.fastq.gz Processing single-end reads on 8 cores ... Finished in 308.089 s (3.777 µs/read; 15.89 M reads/minute). === Summary === Total reads processed: 81,572,749 Reads with adapters: 18,087,574 (22.2%) Reads written (passing filters): 81,572,749 (100.0%) Total basepairs processed: 8,620,461,579 bp Quality-trimmed: 2,728,639 bp (0.0%) Total written (filtered): 8,598,021,745 bp (99.7%) === Adapter 1 === Sequence: AGATCGGAAGAGC; Type: regular 3'; Length: 13; Trimmed: 18087574 times Minimum overlap: 1 No. of allowed errors: 1-9 bp: 0; 10-13 bp: 1 Bases preceding removed adapters: A: 48.5% C: 11.1% G: 5.8% T: 34.5% none/other: 0.0% Overview of removed sequences length count expect max.err error counts 1 17384393 20393187.2 0 17384393 2 22907 5098296.8 0 22907 3 442429 1274574.2 0 442429 4 236449 318643.6 0 236449 5 1209 79660.9 0 1209 6 12 19915.2 0 12 7 8 4978.8 0 8 8 1 1244.7 0 1 9 7 311.2 0 1 6 10 92 77.8 1 0 92 11 63 19.4 1 0 63 12 4 4.9 1 0 4 RUN STATISTICS FOR INPUT FILE: zr3644_7_2.fastq.gz ============================================= 81572749 sequences processed in total Total number of sequences analysed for the sequence pair length validation: 81572749 Number of sequence pairs removed because at least one read was shorter than the length cutoff (20 bp): 36243 (0.04%)