Wheat leaf senescence and its regulatory gene network

Wheat leaf senescence is a developmental process that involves expressional changes in thousands of genes ultimately impact grain protein content (GPC), yield (GY), and nitrogen use efficiency. The onset rate are strongly influenced by plant hormones environmental factors e.g. availability. At maturity, decrease uptake could enhance N remobilization from leaves stem to grain, eventually leading senescence. Early related high GPC somewhat low whereas late often GPC. or principally regulated up down-regulation associated genes. Integration external internal together with genotypic variation influence age dependent manner. Although regulation involved has been studied rice, Arabidopsis, maize, currently wheat, there genotype-specific variations yet explore. A major effort needed understand the interaction positive negative regulators determining In increasing attention paid role regulator, GPC-1, gene network during early time course. Recently, regulatory course revealed important regulators. However, known regulator TaNAC-S not extensively wheat little about its value breeding. Existing data on senescence-related transcriptome studies effectively be used for functional study developing efficient varieties.