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. 2012 Feb 6;2:3. doi: 10.3389/fcimb.2012.00003

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Copyright © 2012 Guzmán-Verri, González-Barrientos, Hernández-Mora, Morales, Baquero-Calvo, Chaves-Olarte and Moreno.

This is an open-access article distributed under the terms of the Creative Commons Attribution Non Commercial License, which permits non-commercial use, distribution, and reproduction in other forums, provided the original authors and source are credited.

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Dispersion of Brucella species confronted to the phylogeny of their preferred host mammal. Phylogeny and time calibration of mammal evolution was adapted from (Kumar and Hedges, 1998; Bininda-Emonds et al., 2007). Brucella cladogram was estimated from MLVA-16 published values (http://minisatellites.u-psud.fr/MLVAnet/login.php?&largeur=1680). The dispersion of the various Brucella species is depicted as cones proportional to the number of strains analyzed. The numbers in the mammal phylogenetic tree represent million of years. The arrow indicates the proposed dispersion of the clade that gave origin to B. ceti strains. Notice that according to this proposal, the B. ceti B porpoise type is closer to the B. pinnipedialis C clusters than to the B. ceti dolphin types A1, A2, and P1. B. suis biovar 2 also has affinity for hares (lagomorphs).