Table 2 Test of genotype × location interaction on original traits
TraitModelAICBIClogLikχ2P-value
RSA_4Reduced3299.13358.8−1638.6
Full3289.63354.6−1632.811.60.000674***
RSA_5Reduced33443403.6−1661
Full3333.23398.3−1654.612.80.000344***
SL_4Reduced2584.92643.6−1281.4
Full2568.72632.8−1272.318.21.99E-05***
SL_5Reduced3041.13100.6−1509.5
Full3019.53084.5−1497.723.61.20E-06***
  • Compared to the Reduced model, Full model has one additional term which is the interaction between the test genotype and location. AIC, Akaike information criterion; BIC, Bayesian information criterion; logLik, log likelihood; χ2, χ2 test value between reduced and full model with one degree of freedom; P-value, P-value of the χ2 test.