Lesion mimic10 Lighter green plants with leaves covered with tiny chlorotic spots and medium round white necrotic lesions uniformly distributed over leaf and leaf sheath.

Lesion mimic10 Lesion mimic: Eighth leaf of Les10-A607 (on right), from outcross to Mo20W, showing profuse necrotic spots coalescing along leaf blade (compare to dark green normal sib). Lesions expressed at about 20 days.

Lesion mimic10 Lesion mimic: 8th leaf of Les10-A607/+ heterozygous mutant plant, (Mo20W/W23 background) showing profuse tiny to small necrotic lesions. Lesions expressed at about 20 days.

Lesion mimic10 Lesion mimic; genetic modifiers: 8th leaf of two Les10-A607/+ heterozygous mutant plants, showing , on left, typical expression in M14/W23 outcross and, right, strikingly fewer lesions, better color and stronger growth in Mo20W outcross.