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Fig. 1 | BMC Evolutionary Biology

Fig. 1

From: The plasmid-mediated evolution of the mycobacterial ESX (Type VII) secretion systems

Fig. 1

The phylogeny of the ESX gene cluster. Maximum likelihood phylogeny of representative ESX gene clusters describing the evolution of the ESX gene cluster from its WXG-FtsK cluster progenitor. The ESX gene clusters form five groups, ESX-4, ESX-3, ESX-1, ESX-2 and ESX-5. The plasmid located and ancestral ESX gene clusters form subgroups of each genomic ESX gene cluster. The ESX gene clusters have evolved divergently from a single duplication of ESX-4 to ESX-1 and ESX-3 and then ESX-2 and ESX-5. One hundred subsets were generated for bootstrapping resampling of the data

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