Fig. 4: Phylogenetic tree of rTCA cycle ferredoxin oxidoreductases.

Phylogenetic relationships between the alpha subunit of 2-oxoglutarate:ferredoxin oxidoreductase (oorA) and the alpha subunit of pyruvate:ferredoxin oxidoreductase (porA). The text in red shows oorA and porA genes of US. pluma. The scale bar represents the expected number of changes per amino acid position. UFBoot and SH-aLRT values are based on 1,000 replicates. Best substitution model: LG + R4.