Sweet potato (Impomoea batatas L.) is a globally important economic food crop with the potential to become a bioenergy and pharmaceutical crop. Thus, studying the molecular mechanism of tuberous root development and storage is very important. A recent study employed next generation high-throughput deep sequencing technology to sequence all small RNAs and the degradome of sweet potato to systematically investigate sweet potato response to chilling stress during storage.
Conservation of the identified miRNA with other species in sweetpotato. The X axis is the count of miRNAs, the Y axis represents the name of the species in miRBase21. Red bar plot showing the miRNA number of the species in miRBase21, blue bar plot showing the miRNA number identified both in sweetpotato and in the species in comparison.