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Table 1 Penetrance patterns for 2-locus epistatic models

From: Grammatical evolution decision trees for detecting gene-gene interactions

Model

XOR

BOX

MOD

Genotype

AA

Aa

aa

AA

Aa

aa

AA

Aa

aa

BB

y

x

y

x

x

x

x

y

y

Bb

x

z

x

x

y

y

x

x

y

bb

y

x

y

x

y

y

y

y

x

  1. Cells marked "x" represent genotype combinations with lower risk. The values "x," "y," and "z" represent penetrance values with 0 < x < y ≤ z < 1 which were chosen to achieve the desired heritability. For XOR models with MAF = 0.5, z = y; for XOR models with MAF = 0.25, z > y to achieve no marginal effects at either locus.