Table 2.
Jaccard similarity coefficient of different clinical isolates of Leishmania sp. calculated from RAPD-PCR study
| L. donovani (DD8) | T2 | T3 | T4 | T7 | P1 | PG2 | PG3 | PG4 | T5 | L. tropica (K27) | |
|---|---|---|---|---|---|---|---|---|---|---|---|
| L. donovani (DD8) | 0 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 0.24 | 0.24 |
| T2 | 0 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 0.24 | 0.24 | |
| T3 | 0 | 1 | 1 | 1 | 1 | 1 | 1 | 0.24 | 0.24 | ||
| T4 | 0 | 1 | 1 | 1 | 1 | 1 | 0.24 | 0.24 | |||
| T7 | 0 | 1 | 1 | 1 | 1 | 0.24 | 0.24 | ||||
| P1 | 0 | 1 | 1 | 1 | 0.24 | 0.24 | |||||
| PG2 | 0 | 1 | 1 | 0.24 | 0.24 | ||||||
| PG3 | 0 | 1 | 0.24 | 0.24 | |||||||
| PG4 | 0 | 0.24 | 0.24 | ||||||||
| T5 | 0 | 1 | |||||||||
| L. tropica (K27) | 0 |
The Jaccard Coefficient has values between 1, for identical Operational Taxonomic Unit (OTU) and 0 for OTUs with no similarity at all. For an average analysis with ten primers, if the coefficient falls between any values, 0.75–1, one arbitrarily assumes the strains to belong to the same species or species complex (Tibayrenc et al. 1993)