Of 29 PR genes identified in N. benthamiana (67), 12 genes encoding PR-1, PR-2, PR-3, PR-4, PR-9, and PR-11 proteins were differentially upregulated in wt RCNMV infection, whereas only 3 genes, all encoding the PR-2 protein, were upregulated in RCNMVΔSR1f infection (Table 3). The gene discussed is PRTN3; the disease is infection.