3.1 Heritability of Fungal and Insect Associations
Clonal repeatability (or within-family broad-sense heritability) was estimated for each categorical survey trait (Table 1). There was a significant host plant genetic contribution of moderate effect controlling the association of S. musiva leaf spot disease severity (H2 = 0.227, p-value < 0.0001). There was a strong effect of host plant genetics on associations ofMelampsora sp. disease severity (H2 = 0.631, p-value < 0.0001) and the continuous count of leaf-folding galls of Phyllocolpa sp. (H2 = 0.391, p-value < 0.0001).