Schematic diagram of the regulation of sugar beet taproot growth and development. Taproot growth and expansion might be regulated at RNA metabolism, protein metabolism, and cell wall metabolism. RNA metabolism relative genes promote RNA catabolism, RNA helicase, and RNA glycosidic bond hydrolysis to restrict the formation of proteins in many processes. Protein metabolism relative genes involved in peptide bonds hydrolysis, BAG6 protein catabolism, and protein spatial structure refolding and maintaining protein integrity to assist in the correct posttranslational assembly of proteins. Cell wall metabolism relative genes involved in pectin, chitin, cellulose, lichenin, D-glucans, xyloglucan hydrolysis, and reconnection, promote the loosening and elongation of the cell wall, and improve cell elongation or expansion. Brassinolide and gibberellin receptor genes are enriched in pathway of plant hormone signal transduction. The red font indicates upregulated, and the green font represents downregulated in both transcriptome and proteome; and the blue font represents downregulated in transcriptome and upregulated in proteome.