Figure 1. A generalized procedure for constructing a version of the minimal gene set.

Figure 1

A generalized procedure for constructing a version of the minimal gene set. For simplicity, the schematic shows the derivation of a minimal gene set through a three-genome (G1, G2, G3) comparison. I, Intersection of the three genomes, which consists of orthologs (COGs); NOD, nonorthologous gene displacement.

From: How Many Genes Can Make a Cell: The Minimal-Gene-Set Concept

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