Table 1.
Genotype of the Ourmia melon virus movement protein (MP) mutants, and summary of the infectivity assays in Nicotiana benthamiana and Arabidopsis thaliana.
| Mutant clone | Amino acid substitution(s) position | Amino acid substitution(s) | Feature* | Systemic symptoms in Nicotiana benthamiana | Systemic symptoms in Arabidopsis thaliana |
|---|---|---|---|---|---|
| pGC‐MP97 | 97–98 | PH/AA | a,b,c | − | − |
| pGC‐MP98 | 98 | H/A | a,c | − | − |
| pGC‐MP137 | 137 | G/A | a,b | + | + |
| pGC‐MP149 | 149,150,151 | CLP/AAA | a | − | − |
| pGC‐MP150 | 150 | L/A | a | − | |
| pGC‐MP169 | 169 | P/A | a,b | − | − |
| pGC‐MP202 | 202 | P/A | a | + | + |
| pGC‐MP215 | 215,216 | QP/AA | c | + | + |
| pGC‐MP252 | 252 | E/A | c | + | + |
| pGC‐MP253 | 252,252,253 | EEE/AAA | c | + | + |
| pGC‐MP282 | 282 | R/A | c | + | + |
*a, amino acid conserved among Ourmiavirus–Aureusvirus species; b, amino acid conserved among Ourmiavirus–Tombusvirus species; c, solvent‐exposed predicted amino acid.