Scientists have been studying the genes responsible for storing proteins in rice seeds. These proteins are important for human nutrition and plant growth. The rice genome contains genes for different types of storage proteins, like glutelin and prolamin. These genes are clustered together on the same chromosome, suggesting they evolved from a common ancestor. Most of these genes are only active in the seed endosperm, while a few are also active in germinating seeds. By studying the genes' promoter regions, researchers found that some promoters are highly active in seeds. This research provides valuable information for improving seed traits and producing useful substances.