Table 2 Likelihood ratio tests for Random-Sites Models of Snake Opn4x Species Tree
From: Characterization of the melanopsin gene (Opn4x) of diurnal and nocturnal snakes
Model | np | ln L | κ | Parameters |  | LRT | df | p |
|---|---|---|---|---|---|---|---|---|
M0 | 57 | − 6516.8 | 3.4 | ω0 = 0.40 |  |  |  |  |
M1a | 58 | − 6417.8 | 3.4 | ω0 = 0.08 (p0 = 0.68); ω1 = 1.0 (0.32) |  |  |  |  |
M2a | 60 | − 6411.7 | 3.5 | ω0 = 0.1 (p0 = 0.69); ω1 = 1.0 (p1 = 0.26); ω2 = 2.45 (p2 = 0.05) | M1a | 12.2 | 2 | 0.002 |
M3 | 61 | − 6409.6 | 3.5 | ω0 = 0.0 (p0 = 0.4); ω1 = 0.43 (p1 = 0.48); ω2 = 1.93 (p2 = 0.12) | M0 | 214.4 | 4 | 0.000 |
M7 | 58 | − 6421.1 | 3.4 | p = 0.17; q = 0.28 |  |  |  |  |
M8a | 59 | −6417.7 | 3.4 | p0 = 0.69, p = 1.57, q = 14.77 (p1 = 0.31, ω = 1.0) |  |  |  |  |
M8 | 60 | − 6410.1 | 3.5 | p0 = 0.91, p = 0.36, q = 0.96 (p1 = 0.09, ω = 2.09) | M7 | 22.1 | 2 | 0.000 |
M8a | 15.2 | 1 | 0.000 |