Fig 1. Minimum-spanning-tree based on the combination of spoligotyping and MIRU-VNTR results of 42 M. bovis strains isolated from slaughtered cattle in Algeria.

Each node represents a unique spoligotype-VNTR sub-profile. If more than one strain exhibited the identical profile the node is separated. Nodes closer than three differences are put into one cluster (gray background). The number of differing alleles (repeat number of MIRU-VNTR and absence/presence of spacer for spoligotyping) between two nodes is indicated by the respective number. The letter inside the nodes represent the slaughterhouse the strains came from (HD: Hussein Dey, HA: Hadjout, EH: El Harrach, DE: Dellys) (BioNumerics, version 7.6.2).