Figure 2.
Statistical significance of the differences amongst the average pairwise number of nucleotide differences per site (nucleotide diversity, π) calculated for the cp and rep genes of begomoviruses. Ninety-five percent bootstrap confidence intervals (CIs) for the difference between π values (πcp–πrep) were estimated from 15,000 nonparametric simulations in R software (R Development Core Team 2007) using the Simpleboot statistical package (Peng 2008). Confidence intervals which include the value ‘zero’ denote no statistically significant difference between the means.