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. 2015 May 18;6:423. doi: 10.3389/fmicb.2015.00423

FIGURE 4.

FIGURE 4

Ribonucleotide reductase (RNR) small subunit phylogenetic tree. RNR ML tree was constructed using aligned sequences from Megavirales (red), Bacteria (green), Archaea (pink), and Eukarya (blue). The confidence values were computed through SH-like support using the FastTree program. The scale bar represents the number of estimated changes per position.