miR156a‐targeted SBP‐Box transcription factor SlSPL13 regulates inflorescence morphogenesis by directly activating SFT in tomato

• DOI: 10.1111/pbi.13331
• Publication Date: 2020-01-09T06:56:04Z
• Authors: Long Cui; Fangyan Zheng; Jiafa Wang; Chunli Zhang; Fangming Xiao; Jie Ye; Changxing Li; Zhibiao Ye; Junhong Zhang
• Keywords: MADS-box

Abstract The inflorescences and lateral branches of higher plants are generated by meristems. structure the inflorescence has a direct effect on fruit yield in tomato ( Solanum lycopersicum ). We previously demonstrated that miR156a plays important roles determining structures suppressing expression SQUAMOSA PROMOTER BINDING PROTEIN LIKE (SPL) transcription factor gene family. However, information regulatory pathways associated with morphogenesis is still lacking. In this study, we demonstrate SPL13 major SPL involved miR156a‐regulated determination branch production. Suppressing increases number vegetative branches, decreases flowers fruit, reduces size yield. Genetic biochemical evidence indicate controls development positively regulating inflorescence‐associated SINGLE FLOWER TRUSS SFT ) directly binding to its promoter region. Thus, our findings provide advance understanding miR156a‐SlSPL‐based mechanism regulates plant architecture tomato.