Additional file 1.
Figure S1. Histogram of a null distribution of gamma statistic on incompletely sampled trees using simulation. The red arrow demonstrates the retrieved gamma value, which is outside of the 95% confidence interval, and thus indicates that the incomplete sampling does not bias the gamma statistic.
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Wang et al. BMC Plant Biology 2012 12:210 doi:10.1186/1471-2229-12-210