Fig. 9: Distributions of terminal branch lengths for the four global Mtb lineages (L1–L4).
From: Population structure, biogeography and transmissibility of Mycobacterium tuberculosis
Two-sided Wilcoxon rank sum tests were performed to test that two distributions were significantly different. Medians: 6.2 × 10−5 (L4), 8.2 × 10−5 (L2), 10.2 × 10−5 (L3), 17.5 × 10−5 (L1). Comparisons: L1 vs L2, L3 or L4 (p-value < 2.2 × 10−16); L2 vs L3 (p-value = 3.6 × 10−6), L2 vs L4 (p-value < 2.2 × 10−16); L3 vs L4 (p-value < 2.2 × 10−16). Description of the distributions (L1: n = 739, Min: 0.5 × 10−5, 1st Quartile: 6.7 × 10−5, Median: 17.5 × 10−5, 3rd Quartile: 28 × 10−5, Max: 120 × 10−5; L2: n = 2193, Min: 0.7 × 10−5, 1st Quartile: 5.3 × 10−5, Median: 8.2 × 10−5, 3rd Quartile: 12 × 10−5, Max: 110 × 10−5; L3: n = 1103, Min: 0.5 × 10−5, 1st Quartile: 4.5 × 10−5, Median: 10.2 × 10−5, 3rd Quartile: 20 × 10−5, Max: 80 × 10−5; L4: n = 5514, Min: 0.2 × 10−5, 1st Quartile: 2.6 × 10−5, Median: 6.2 × 10−5, 3rd Quartile: 13 × 10−5, Max: 70 × 10−5). Source data are provided as a Source Data file.
