Figure 3From: Identification and analysis of miRNAs in human breast cancer and teratoma samples using deep sequencing Origin of reads. The origin of reads after mapping to the genome, as determined by overlap with genomic annotation. As expected miRNA derived reads constituted the largest category, while (~6%) of reads were of unknown origin (no annotation on the coordinates and strand corresponding to the read). Not shown in the figure is a small number of matches to piRNAs.Back to article page