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).