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Table 3 PTLV evolutionary time-scale calculated with a Bayesian relaxed molecular clock using 1st + 2nd codon positions of different gene regions1.

From: Ancient, independent evolution and distinct molecular features of the novel human T-lymphotropic virus type 4

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. 1 The most recent common ancestor (tMRCA) is the median Bayesian estimate in years ago (ya); 95% HPD intervals are given in parentheses.
  2. 2 The tMRCA for this node was constrained by using a uniform distribution prior of 40,000–60,000 ya.
  3. 3 The tMRCA for this node was constrained by using a uniform distribution prior of 12,000–30,000 ya.