Macro-array and bioinformatic analyses reveal mycobacterial 'core'
genes, variation in the ESAT-6 gene family and new phylogenetic
markers for the Mycobacterium tuberculosis complex.
Microbiology (2004) 150: 483 - 496., (pdf).
A very recent study on human isolates from East Africa enabled the probable progentor species of the M. tuberculosis complex to be identified and characterized. Further information on this study is avalable via the open access article:
Gutierrez, M.C., Brisse, S., Brosch, R., Fabre, M., Omais, B., Marmiesse, M.,
Supply, P., and Vincent V. (2005) Ancient Origin and Gene Mosaicism
of the Progenitor of Mycobacterium tuberculosis . PLoS Pathog 1: e5(pdf)(News-Commentary
).