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Fig. 3 | BMC Evolutionary Biology

Fig. 3

From: Structuring evolution: biochemical networks and metabolic diversification in birds

Fig. 3

Structural diversity of carotenoid compounds in the avian space of the global carotenoid metabolic network (Fig. 2). Compounds differ in connectivity (reactions per compound), shown in the histogram on the left, and their distance (number of reactions) from the four main dietary (starting) compounds (lutein, zeaxanthin, β-carotene, β-cryptoxanthin), shown in the graph on the right

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