Fig. 2
From: Parent-offspring regression to estimate the heritability of an HIV-1 trait in a realistic setup
Sparse sampling. For each of 12 transmission pair criteria (combination of allowed genetic distance and bootstrap cutoff) the heritability was estimated using PO regression on the full SHCS phylogeny (blue bars) and on 100 randomly generated sparse trees with sparseness 1/3 (red bars). For both estimations, the same 100 realizations of OU simulations on the full SHCS phylogeny and the 100 sparse phylogenies were used