Phenotype combinations in the F₂ progeny of double mutant, G558-11-5-2/E22097-1-3-1.

<p>n_n: recessive, narrow leaf width allele. N_n: dominant, wild-type leaf width allele. v_n: recessive, high vein density allele. V_n: dominant, wild-type vein density allele. Phenotypes were evaluated at the 5^th–7^th leaf stage except for the vein densities of progeny plants with very narrow leaves. Their vein counts per 2 mm could not be taken at the 5^th–7^th leaf stage so were instead taken at the late vegetative stage. Wild-type leaf width: 8–9 mm. Narrow leaf width: 4–6 mm. Very narrow leaf width: 1–2 mm. Wild-type vein density: ≥5<6.5 veins mm⁻¹. High vein density: ≥6.5<7.5 veins mm⁻¹. Very high vein density: ≥7.5 veins mm⁻¹. Both candidate mutant lines G558-11-5-2 and E22097-1-3-1 had the phenotypic traits of narrow leaves and high vein density. The data characterizes F₂ progeny descended from a single F₁ plant. The F₁ plants all had wild-type vein density and leaf width.