Figure 7.

Genes involved in anthocyanin biosynthesis are induced by UV-B irradiation stress in the SAM. A, A four-way analysis was carried out to identify a common set of genes induced and repressed by UV-B in seedlings and the SAM epidermal cell layer. B, Genes involved in anthocyanin biosynthesis were upregulated in response to UV-B, while DEWAX expression was downregulated compared to the unexposed control (comparison was made using normalized fragments per kilobase of transcript per million mapped reads values). C, Sketch of the HY5 and DEWAX gene regulatory network.