Figure 2

Degrees of genome-wide sequence identity shared between ECSV (in bold; isolate ECSV [Za-Gre3-g257-2007]) and 40 representative geminivirus genomes (or DNA-A or DNA-A like genome components in the case of the begomoviruses; virus names and GenBank accession numbers are given in the tree). Note that due to (i) recombination during the evolutionary histories of many of the represented viruses (ii) very high degrees of alignment uncertainty and (iii) the strong possibility that many regions of the aligned genomes are not homologous, the presented neighbour joining tree is simply intended as a graphical depiction of genome-wide nucleotide sequence identities rather than a credible representation of the evolutionary relatedness of these viruses. Numbers associated with tree branches indicate percentage of bootstrap support (from 1000 replicates) for those branches. Branches with less than either 50% bootstrap support or less than 90% interior branch length test support (as determined in MEGA 4.0) have been collapsed. The percentage genome-wide nucleotide sequence identities shared between ECSV and the other geminivirus genomes (with alignment gaps treated as missing data rather than a fifth character state) is presented on the right.