Table 3.
PTLV evolutionary time-scale calculated with a Bayesian relaxed molecular clock using 1st + 2nd codon positions of different gene regions1.
| Clade | gag | pol | env | tax |
| PTLV root | 358,500 (169,200 – 600,200) |
308,500 (136,400 – 559,900) |
385,100 (172,300 – 638,900) |
214,650 (104,050 – 353,100) |
| STLV-5 (MarB43)/PTLV-1 | 121,850 (68,650 – 201,300) |
121,450 (60,450 – 220,600) |
147,850 (72,450 – 244,800) |
87,500 (50,400 – 143,250) |
| PTLV-1 | 75,100 (50,200 – 115,200) |
54,250 (40,410 – 79,340) |
58,250 (41,600 – 84,000) |
54,800 (40,900 – 76,100) |
| HTLV-1(Mel)/PTLV1a, b 2 | 46,350 (40,000 – 57,900) |
47,450 (40,000 – 58,400) |
47,550 (40,000 – 58,400) |
48,200 (40,000 – 58,500) |
| HTLV-4(1863)/PTLV-2 |
187,500 (85,050 – 321,800) |
175,100 (63,850 – 334,750) |
221,650 (89,650 – 378,000) |
124,250 (49,800 – 218,250) |
| PTLV-2 | 128,600 (57,000 – 226,550) |
103,700 (41,300 – 205,100) |
126,850 (51,850 – 223,350) |
75,200 (29,850 – 135,200) |
| STLV-2 | 42,350 (11,650 – 87,100) |
37,200 (9,800 – 82,800) |
27,700 (8,150 – 58,100) |
35,550 (12,100 – 70,050) |
| HTLV-2 | 33,600 (15,750 – 58,200) |
30,100 (13,900 – 54,900) |
30,600 (13,750 – 54,100) |
23,500 (12,800 – 41,050) |
| HTLV-2a, b 3 | 23,000 (14,350 – 30,000) |
20,400 (12,000 – 28,700) |
20,000 (12,000 – 28,350) |
18,350 (12,000 – 27,950) |
| PTLV-3 | 71,700 (28,800 – 120,700) |
64,550 (25,010 – 129,800) |
60,050 (32,950 – 122,200) |
40,850 (16,400 – 81,150) |
1 The most recent common ancestor (tMRCA) is the median Bayesian estimate in years ago (ya); 95% HPD intervals are given in parentheses.
2 The tMRCA for this node was constrained by using a uniform distribution prior of 40,000–60,000 ya.
3 The tMRCA for this node was constrained by using a uniform distribution prior of 12,000–30,000 ya.