miRNA/siRNA-based approaches to enhance drought tolerance of barley and wheat under drought stress

We review biogenesis and function of miRNAs and small interfering RNAs in plants, the mechanisms of plant drought stress and tolerance, responses of miRNAs and siRNAs in plants, especially in the cereal crops barley and wheat under drought stress, and strategies for functional analysis of miRNAs and siRNAs in plants and for the miRNA/siRNA-based genetic modification technology toward drought tolerant barley and wheat

Bu-Jun Shi

2016

Scholarcy highlights

  • RNA interference in plants is a natural defence system against foreign genetic elements such as viruses, or extreme environmental changes such as drought
  • genetic modification of plants by introduction of genes has been claimed to predominantly give drought tolerance, but GM based on miRNAs/small interfering RNAs as a tool to generate drought tolerant plants has not been extensively explored
  • MiRNAs, siRNAs or miRNA/siRNA-like sequences can be easy to manipulate; Secondly, transgenics of miRNAs, siRNAs or miRNA/siRNA-like sequences produce no protein, which overcomes the public concern of so called ‘foreign proteins’ in transgenics; miRNAs, siRNAs or miRNA/siRNA-like sequences in transgenic plants can target a specific function, for example drought tolerance
  • We review biogenesis and function of miRNAs and siRNAs in plants, the mechanisms of plant drought stress and tolerance, responses of miRNAs and siRNAs in plants, especially in the cereal crops barley and wheat under drought stress, and strategies for functional analysis of miRNAs and siRNAs in plants and for the miRNA/siRNA-based genetic modification technology toward drought tolerant barley and wheat

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