论文部分内容阅读
GS5 is a positive regulator of grain size in rice.Higher expression level of GS5 coding sequences from both narrow-grain line H94 and wide grain line Zhenshan97 produce wide grains.It has been proposed that polymorphisms in the promoter region may be the cause of the GS5 effect on grain size.We assayed the temporal and spatial expression patterns of GS5,and found that it in general had much higher expression level in green tissues than in non-green tissues,such as culm,root,young panicle and endosperm.