Fig. 4From: Natural selection drove metabolic specialization of the chromatophore in Paulinella chromatophora Variation in the proportion of genes classified as essential, variable and dispensable in different metabolic pathways according to two different sets of available nutrients for the chromatophore. a Set of Proposed Nutrients; b set of Randomized Nutrients. AA to BN metabolic pathways: AA* = Citrate cycle (TCA cycle); AB = Lipopolysaccharide biosynthesis; AC = Carotenoid Biosynthesis; AD = Folate biosynthesis; AE = Glycerolipid metabolism; AF = Hydrogen production; AG = Steroid biosynthesis; AH = Aminosugars metabolism; AI* = Nicotinate and nicotinamide metabolism; AJ = Nucleotide sugars metabolism; AK = Riboflavin metabolism; AL = Thiamine metabolism; AM = Carbon fixation; AN = Glutamate metabolism; AO = Lysine metabolism; AP = Nitrogen metabolism; AQ = Terpenoid backbone biosynthesis; AR = Fructose and mannose metabolism; AS* = Pantothenate and CoA biosynthesis; AT = Peptidoglycan biosynthesis; AU = Ubiquinone and other pterpenoids biosynthesis; AV = Urea cycle and metabolism of amino groups; AW* = Alanine, aspartate and glutamate metabolism; AX = Valine leucine and isoleucine biosynthesis; AY = Histidine metabolism; AZ* = Pentose phosphate pathway; BA = Starch and sucrose metabolism; BB = Fatty acid biosynthesis; BC = Glyoxylate and dicarboxylate metabolism; BD = Sulfur Cysteine and methionine metabolism; BE = Arginine and proline metabolism; BF = Pyrimidine metabolism; BG = Glycolysis/Gluconeogenesis; BH = Pyruvate metabolism; BI* = Phenylalanine tyrosine and tryptophan biosynthesis; BJ* = Purine metabolism; BK* = Porphyrin and chlorophyll metabolism; BL = Oxidative phosphorylation; BM* = Photosynthesis and BN = Transport. * Metabolic pathways with a difference in categorical genes with p-value < 0.05Back to article page