Fig. 4From: Unexpected diversity of CRISPR unveils some evolutionary patterns of repeated sequences in Mycobacterium tuberculosisIS-Driven CRISPR locus evolution mechanism suggested between L4.1.1.3 and L4.1.2.1. See Fig. 2 for legend. The three lines correspond to successive steps of evolution (starting from an ancestor with a structure identical to ERR072087, to the structure of ERR234259) according to a parsimonious reconstruction (see all individual CRISPR structures in Supplementary file 2)Back to article page