Brassinosteroid (BR) and gibberellin (GA) are two groups of plant growth regula- tors essential for normal plant growth and development. To gain insight into the molecular mechanism by which BR and GA regulate the growth and development of plants, especially the monocot plant rice, it is necessary to identify and ana- lyze more genes and proteins that are regulated by them. With the availability of draft sequences of two major types, japonica and indica rice, it has become pos- sible to analyze expression changes of genes and proteins at genome scale. In this review, we summarize rice functional genomic research by using microarray and proteomic approaches and our recent research results focusing on the comparison of cDNA microarray and proteomic analyses of BR- and GA-regulated gene and protein expression in rice. We believe our ?ndings have important implications for understanding the mechanism by which BR and GA regulate the growth and development of rice.
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