水稻MYB家族转录因子研究进展OA

Plant MYB represents a large family of transcription factors that play extensive roles in regulating crucial biological processes.These include growth and developmental regulation,such as seed dormancy and germination,root development,secondary cell wall synthesis,tiller initiation and elongation,floral organ differentiation and development,panicle morphogenesis,seed development,and phytohormone metabolism.They are also key players in responses to biotic and abiotic stresses(e.g.,diseases,insect pests,high temperature,low temperature,drought,high salinity,and UV damage),absorption and utilization of mineral nutrients(e.g.,nitrogen,phosphorus,copper),and the synthesis of secondary metabolites(e.g.,anthocyanins,flavonoids).This review systematically summarizes the protein structure and classification of MYB transcription factors,as well as the important agronomic traits they regulate.Future research directions are also discussed,including mining more MYB family genes in rice,deciphering the pleiotropic effects of MYB factors,identifying superior haplotypes,and promoting breeding applications through strategies such as promoter editing.The aim is to provide genetic resources and theoretical support for breeding rice varieties with high yield,improved quality,and enhanced stress resistance.