Fig. 2From: Quantifying and reducing spurious alignments for the analysis of ultra-short ancient DNA sequencesEffect of sequence length, indel, and deamination filters on the proportion of spurious alignments. The proportion of spurious alignments in each size bin is shown for all Mezmaiskaya 1 (“Mez”) alignments in black, alignments without indels in orange, alignments with terminal C to T substitutions (“deam”) in blue, and with both filters applied in green. An analysis of modern human sequences (“Control”) without microbial contamination is shown in gray. Ninety-five percent binomial confidence intervals are as wide as or smaller than the line width. The dashed rectangle encloses the area depicted in the zoom-in on the top-right cornerBack to article page