Fig. 1
From: A comparison of methods for estimating substitution rates from ancient DNA sequence data
Standardized error in estimates of substitution rates from sequence data produced under 12 different simulation conditions, representing different combinations of substitution rate, rate variation among lineages, and phylo-temporal clustering. Data were analysed using a regression of root-to-tip distances in TempEst, b least-squares dating in LSD, and c Bayesian inference in BEAST. Numbers along the top of each panel indicate the proportion of estimates that are above the rate used for simulation (‘true’ rate). Asterisks indicate cases in which one-sample Wilcoxon tests of errors in rate estimates show a significant difference from zero (see Additional file 2: Table S1)