Model fitting for canine dysplastic traits. (a, b) Bayesian Information Criterion (BIC) and −2 residual log-likelihood values of mixed models with different relative kinship (K) matrices based on different proportion of 471 simple sequence repeats (SSRs). (c, d) Variance ratio [Vg/(Vg + VR)] estimates from mixed models. Standard deviations are shown by vertical bars. DI, distraction index; DLS, dorsolateral subluxation.