Summary statement
RGB1 regulates grain development and starch biosynthesis by controlling auxin synthesis, of which RGB1 positively regulates the expression ofOsYUC11 , a key gene responsible for auxin synthesis in rice endosperm cells, through activating the interaction of OsNF-YB1, a nuclear transcript factor, with OsYUC11 .
RGB1 regulates grain development and starch accumulation through transactivation of OsNF-YB1 onOsYUC11-mediated auxin biosynthesis in rice endosperm cells