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Hard clipping

Definition
AI-generated

Hard clipping removes bases from a read record entirely (not present in SEQ), unlike soft clipping.

Why it matters in GWAS

Hard-clipped records affect length-based metrics and may interact with duplicate detection; analysts should track whether FASTQ trimming preceded alignment.

Example usage

"Hard clipping removed primer sequence from supplementary alignments before discordant clustering."

References

  • Li H, et al. (2009). The Sequence Alignment/Map format and SAMtools. Bioinformatics.

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