miR156SPL

miR156SPL is a microRNA precursor found in plants, specifically within the *Arabidopsis thaliana* genome. MicroRNAs (miRNAs) are small, non-coding RNA molecules that play crucial roles in regulating gene expression post-transcriptionally. They typically bind to complementary sequences in messenger RNA (mRNA) molecules, leading to mRNA degradation or inhibition of translation.

The miR156SPL precursor gives rise to mature miR156, a highly conserved miRNA across a wide range of plant species. miR156 is a key regulator of developmental timing in plants, particularly concerning the transition from juvenile to adult phases. It primarily targets members of the SPL (SQUAMOSA PROMOTER BINDING PROTEIN-LIKE) transcription factor family. By downregulating SPL expression, miR156 delays the onset of adult characteristics such as flowering and changes in leaf morphology.

Research on miR156SPL and its downstream effects has provided significant insights into the intricate regulatory networks governing plant development. Understanding the function of miR156SPL is important for plant biology, offering potential avenues for manipulating crop development, such as accelerating flowering time or improving yield. The precursor's specific location and processing within the plant's cellular machinery are areas of ongoing study.