Table 5. Numbers of inferred lateral genes with two donors in the ECS dataset, and the phyletic relationship of the donors.

Genome name	Lateral genes with two donors	Number of overlaps (pairwise)	Number monophyletic	Number non-monophyletic	Proportion monophyletic
E. coli K12 substr W3110	117	223	50	173	22.4%
E. coli K12 substr MG1655	465	1514	423	1091	27.9%
Shigella flexneri 2a	288	709	0	709	0
Shigella flexneri 2a 2457T	158	361	0	0	0
Shigella sonnei Ss046	626	1564	0	1564	0
Shigella boydii Sb227	538	1247	0	1247	0
E. coli 536	328	522	0	522	0
Shigella flexneri 5 8401	120	259	0	259	0
E. coli HS	667	1885	564	1321	29.9%
E. coli E24377A	1068	2272	0	2272	0
Shigella boydii CDC 3083 94	187	277	0	277	0
E. coli SE11 (#20)	1049	2250	0	2250	0
E. coli 0127 H6 E2348 69	448	670	0	670	0
E. coli IAI1	991	2927	832	2095	28.4%
E. coli S88	287	413	0	413	0
E. coli ED1a	305	431	0	431	0
E. coli 55989	1081	2344	0	2344	0
E. coli UMN026	769	2445	0	2445	0