The sum of abundances of sequences matching to all new cassava miRNAs identified in this study. Precursors are plotted against their locations and the overall sRNA distribution within a 3Â kb vicinity in the genomic chunk. The most abundant sequence is denoted with a red arrow; other sRNAs of different sizes are also shown. Some miRNAs were mapped to loci with high levels of sRNAs as well as to loci with low levels of sRNAs. (PPTX 270Â kb