Fig. 3
From: Quantifying and reducing spurious alignments for the analysis of ultra-short ancient DNA sequences
Cumulative proportion of spurious alignments. Squares and dots on the x-axis show the length-cutoffs that guarantee a spurious alignment rate lower than 1% (L1%) and lower than 10% (L10%), respectively (see also Table 1). The dashed horizontal gray line indicates 10% spurious alignments. Only sequences with C-to-T changes in the terminal 5′ and 3′ positions and without indels are considered (i.e., the filters “deam+indels” used in Fig. 2)