This is cutadapt 4.1 with Python 3.8.13 Command line parameters: --cores 16 --match-read-wildcards --overlap 3 --error-rate 0.1 -a AACTTTYARCAAYGGATCTCCTGTCTCTTATACACATCTCCGAGCCCACGAGAC -g ACCTGCGGARGGATCA -o /nephele_data/outputs/cutadapt_trimmed/E23-ITS-16_S56_L001_R1_001.fastq.gz /nephele_data/inputs/E23-ITS-16_S56_L001_R1_001.fastq Processing single-end reads on 16 cores ... Finished in 0.19 s (33 µs/read; 1.81 M reads/minute). === Summary === Total reads processed: 5,617 Reads with adapters: 47 (0.8%) Reads written (passing filters): 5,617 (100.0%) Total basepairs processed: 1,685,100 bp Total written (filtered): 1,684,893 bp (100.0%) === Adapter 1 === Sequence: AACTTTYARCAAYGGATCTCCTGTCTCTTATACACATCTCCGAGCCCACGAGAC; Type: regular 3'; Length: 54; Trimmed: 0 times === Adapter 2 === Sequence: ACCTGCGGARGGATCA; Type: regular 5'; Length: 16; Trimmed: 47 times Minimum overlap: 3 No. of allowed errors: 1-9 bp: 0; 10-16 bp: 1 Overview of removed sequences length count expect max.err error counts 3 29 87.8 0 29 4 14 21.9 0 14 16 4 0.0 1 1 3