Figure 1From: Characterization of in vivo-acquired resistance to macrolides of Mycoplasma gallisepticum strains isolated from poultryPhylogenetic tree derived from distance analysis of the four concatenated GTS partial gene sequences. The tree was constructed using the neighbor-joining algorithm (Darwin 5.0). A single sequence representing each of the 13 GTS types (I to XIII, Table 1) is displayed. Bootstrap percentage values were calculated from 1000 resamplings and values over 70% are displayed. The scale bar shows the distance equivalent to 1 substitution per 1000 nucleotide positions.Back to article page