The expression level of BKI1 was upregulated in the BD plants compared with the WD plants, and there were no differences in the expression of BRI1-ASSOCIATED KINASE1 (BAK1), BR INSENSITIVE1 (BRI1), BR SIGNALING KINASES (BSK), BIN2, and BRASSINAZOLE-RESISTANT1/BRASSINOSTERIOD INSENSI-TIVE1-EMS-SUPPRESSOR1 (BZR1/BES1) between the BD and the WD plants. The gene discussed is BIN2; the disease is Behcet disease.