The heading process is important and unique for the Chinese cabbage (Brassica rapa L.ssp. pekinensis). Expressed sequence tag (EST) analysis would result in a gene expression profile of any unique biological processes. To understand the mechanism of Chinese cabbage heading process, we randomly sequenced over 1000 ESTs from the cDNA library constructed before at our laboratory from Chinese cabbage leaves in the early phase of the heading stage. In order to get the recombinant plasmid DNAs for EST...