Fig. 2
From: Genome-wide mosaicism within Mycobacterium abscessus: evolutionary and epidemiological implications
Ancestry of 280 strains belonging to the MAB. a Distribution of the three subspecies (plus admixed strains) within a minimal spanning tree (MSTREE) based on the degree of allele sharing. Circles are proportional to the number of strains and are colored according to the subspecies identification obtained from the Bayesian algorithm STRUCTURE. The thickness of the line is function of the number of shared alleles. b Proportion of ancestry from the subspecies M. abscessus, M. bolletii and M. massiliense as inferred by STRUCTURE and their assignment to three rpoB groups as displayed with DISTRUCT [78]. c Genomic locations of the 7 housekeeping genes and the diagnostic genes rpoB. d Synthetic network representing the amount of gene flow between the three subspecies based on the sole STs and the STRUCTURE assignments. For each subspecies, percentage of foreign allele (form other subspecies) is indicated with 99 % confidence interval. e Proportions of admixed ST for each subspecies. Left bar: not admixed (ie. no exogenous allele). Right bar: at least one exogenous allele (ie. from another MAB subspecies). *P < 0.05; **P < 0.01 (Fisher exact two-sided test)