In RNA gel blot analysis showed that both RS2 and RS6 are expressed highly in 10 DAP embryo and throughout the endosperm from 2 to 20 DAP, while RS2 is still expressed lowly in roots, leaves, spike and the seeds at 1 DAP.

• Northern杂交结果表明，基因RS2主要在授粉后10天种子的胚及授粉后10天、15天、20天种子的胚乳中表达，而在根、叶等营养器官中表达量较低； 基因RS6只在授粉后5天的种子、授粉后10天种子的胚及授粉后10天、15天、20天种子的胚乳中表达。