Digenic epistatic effects detected for kernel weight conditioned on four other kernel-related traits and kernel volume conditioned on three kernel-structure characteristics in the immortalized F₂ population.

Notes: a Chr-ini is the first marker interval chromosomal location, and Chr-inj is the second marker interval chromosomal location; bThe digenic effect of the two interacting loci; AiAj, the effect of additive-by-additive interaction between points i and j; AiDj, the effect of additive-by-dominant interaction between points i and j; DiAj, the effect of dominant-by-additive interaction between points i and j; DiDj, the effect of dominant-by-dominant interaction between points i and j; a positive or negative epistatic effect indicates that the parental allele or recombinant allele combinations, respectively, increase phenotypic values; cContribution explained by the locus pair interaction; d *p≤0.0005; **p≤0.0001; eBold indicates the interval is identical to conditional or unconditional QTL.