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Figure 2 | BMC Microbiology

Figure 2

From: Multiple-locus variable-number tandem-repeat analysis of Streptococcus pneumoniae and comparison with multiple loci sequence typing

Figure 2

Minimum spanning tree constructed from 7 MLVA markers for 331 pneumococcal isolates from this study. A: ms17, ms19, ms25, ms27, ms33, ms37, ms39 markers used for this study; B: ms17 ms19, ms25, ms34, ms37, ms39 markers [25]; C: ms15, ms25, ms32 ms33, ms37, ms38, ms40 [26]. Clusters were defined as MTs having a maximum distance of changes at 1 loci and a minimum cluster size of 1 type. The minimum spanning tree was constructed with a categorical coefficient. Each circle represents a different MLVA type (MT). The colour of a circle indicates the number of the corresponding sequence type (ST). Size of the circle reflects the number of isolates while the distance between circles reflects the degree of genetic divergence (heavy short lines connect SLVs, thin longer lines connect DLVs, and dotted lines indicate the most likely connection between 2 STs differing by more than 2 loci). The number of loci that differ between two MTs is indicated on the lines connecting the MTs. Each clonal complexes is shaded in a different colour.

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