Table 2.

Complete and minimal network statistics for populations evolved in a XOR phenotype with and without HGT

	Full network				Minimal network
	No HGT		HGT		No HGT		HGT
Fitness (St. Dev.)	0.81	(0.052)	0.79	(0.044)	0.78	(0.006)	0.75	(0.006)
Triplets	8.8		13.8		5.5		6.7
Links (St. Dev.)	335	(157)	338	(136)	10.6	(0.03)	14.1	(0.03)
Sparsity	0.39		0.22		0.11		0.10
Modularity	3.8		10.1		3.3		3.1

Statistics were calculated over 128 simulation runs, and in populations that evolved an XOR phenotype (environment AB) with and without HGT (2000 epochs). Only fit cells (fitness > 0.7) were included, resulting on an average 74% representation. Sparsity is calculated as the ratio of the number of edges to the maximum number of possible edges in a directed graph.