An atlas of small RNAs from potato.

Small RNAs, including microRNAs (miRNAs), phased secondary small interfering RNAs (phasiRNA), and heterochromatic small interfering RNAs (hc-siRNA) are an essential component of gene regulation. To establish a broad potato small RNA atlas, we constructed an expression atlas of leaves, flowers, roots, and tubers of Desiree and Eva, which are commercially important potato () cultivars. All small RNAs identified were observed to be conserved between both cultivars, supporting the hypothesis that small RNAs have a low evolutionary rate and are mostly conserved between lineages.