Figure 3 : Phylogenetic tree for genomes sharing the cholera toxin.

A phylogenetic tree representing virulence of V. cholerae O1 due to the presence of cholera toxin was produced by the Neighbor Joining Tree method, using BLAST pair
wise alignment. Distance between internal node for a subtree or alignment is 0.0003. The distance tree of the result was generated by BLAST for sequences that share
DNA encoding the cholera toxin. The accession numbers for the sequences selected are as follows: DNA coding the cholera toxin: GenBank: E00132.1, V. cholerae
IEC224 chromosome I, complete sequence (NC_016944.1), V. cholerae O1 biovar El Tor str. N16961 chromosome I, complete sequence (NC_002505.1), V. cholerae
O395 chromosome 1, complete sequence (NC_009456.1), V. cholerae O395 chromosome 2, complete sequence (NC_009457.1), V. cholerae MJ-1236 chromosome 2,
complete genome (NC_012667.1), V. cholerae O395 chromosome I, complete sequence (NC_012582.1), V. cholerae O1 str. 2010EL-1786 chromosome 1, complete sequence
(NC_016445.1), and V. cholerae O395 chromosome II, complete sequence (NC_012583.1).

Varela et al.Genomics Discovery  2014 2:1DOI : 10.7243/2052-7993-2-1