Structural and Functional Characteristics of miRNAs in Five Strategic Millet Species and Their Utility in Drought Tolerance.

摘要: Millets are the strategic food crops in arid and drought-prone ecologies. Millets, by virtue of nature, very well-adapted to drought conditions able produce sustainable yield.Millets have important nutrients that can help preventmicro-nutrientmalnutrition. As a result of adverse effect climate change widespread malnutrition, millets have attained a position sustain nutritional security. Although can adapt well ecologies where other cereals fail completely, yield level is very low under stress. There is tremendous opportunity increase genetic potential of millet dry lands when genetics drought-tolerance mechanism fully explained. MicroRNAs (miRNAs) class small RNAs control trait expression. They part gene regulation but little studied millets. In present study, novel miRNAs targets were identified from genomic resources pearl millet, sorghum, foxtail millet, finger proso through silico approaches. A total 1,002 280 families regulating 23,158 identified using different filtration criteria five species. The unique as conserved structural features functional characteristics miRNA across explained. About 84miRNAs conserved acrossmillets species combinations, which explained evolutionary relationship Further, 215 controlling 155 major drought-responsive genes, transcription factors, protein families revealed tolerance accumulated genomes. The stress specific or multiple targets showed network analysis. genes regulated genes could be useful developing markers used for improvement under drought crops.