R1 read identifiers match R2 read identifiers

r1_r2_ids_match

What is it?

• If paired-end reads are uploaded, this QC checks that the read pairs in the R1 and R2 FASTQ files have the same names and are in the same order

Possible reasons for failure:

• Reads in the FASTQ pairs are not in the same order in the R1 and R2 files

Troubleshooting:

• Make sure that the FASTQ files you’re uploading are sorted (i.e., have the read pairs in the same order in both files)