The MYB transcription factor Seed Shattering 11 controls seed shattering by repressing lignin synthesis in African rice

• DOI: 10.1111/pbi.14004
• Publication Date: 2023-01-07T07:12:06Z
• Authors: Jing Ning; Wei He; Linhua Wu; Leqin Chang; Min Hu; Yongcai Fu; Fengxia Liu; Hongying Sun; Ping Gu; Marie‐Noelle Ndji...; Chuanqing Sun; Zuofeng Zhu
• Keywords: MYB; Oryza

Summary African cultivated rice ( Oryza glaberrima Steud.) was domesticated from its wild progenitor species barthii ) about 3000 years ago. Seed shattering is one of the main constraints on grain production in rice, which causes severe losses during harvest. By contrast, Asian sativa displays greater resistance to seed shattering, allowing higher production. A better understanding regulation would help improve harvesting efficiency rice. Here, we report map‐based cloning and characterization OgSH11 , a MYB transcription factor controlling O. . represses expression lignin biosynthesis genes deposition by binding promoter GH2 We successfully developed new material showing significantly reduced knockout SH11 using CRISPR‐Cas9 mediated approach. Identification not only supplies target for improvement but also provides insights into molecular mechanism abscission layer development.