MicroRNAs (miRNAs) are non-coding RNAs of approximately 21 nucleotides that negatively regulate gene expression. In plants, many miRNAs target key regulatory genes, such as transcription factors, which play critical roles in plant developmental processes and stress responses. Underscoring their importance, many of these miRNA-target relationships are highly conserved, such as the miR159-MYB regulatory module that appears present in all land plants. This regulatory relationship has been...[Show more]
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