Table 2. Likelihood ratio test (LRT) statistics for testing hypotheses (models shown in Table S6) concerning positive selection in certain species of TAAR4 and changing constraint in TAAR5.
Hypothesis tested | ω | P-value |
TAAR4 | ||
branch models | ||
ω0≠ωcerc | ω0 = 0.247 | <0.0001 |
ωcerc = 2.590 | ||
ω0, ωcerc≠1 | ω0 = 0.247 | 0.1626 |
ωcerc = 1 | ||
ω0≠ωglires | ω0 = 0.172 | 0.0477 |
ωglires = 1.209 | ||
ω0, ωglires≠1 | ω0 = 0.172 | 0.8875 |
ωglires = 1 | ||
branch site models | ||
model A versus model A' | ω0 = 0.153 | 0.1389 |
(foreground branch: cerc) | ω1 = 1 | |
ω2(cerc) = 3.722 | ||
ω2a(othprim) = 0.153 | ||
ω2b(othprim) = 1 | ||
model A versus model A' | ω0 = 0.079 | 0.0525 |
(foreground branch: Glires) | ω1 = 1 | |
ω2(glires) = 42.11 | ||
ω2a(othmam) = 0.079 | ||
ω2b(othmam) = 1 | ||
TAAR5 | ||
branch models | ||
ω0≠ωhcg | ω0 = 0.204 | 0.0676 |
ωhcg = 0.537 | ||
ω0, ωhcg≠1 | ω0 = 0.205 | 0.2542 |
ωhcg = 1 | ||
ω0≠ωrp | ω0 = 0.213 | 0.2965 |
ωrp = 0.543 | ||
ω0, ωrp≠1 | ω0 = 0.213 | 0.5169 |
ωrp = 1 |
ωcerc, ω of Cercopithecinae (see Figure 2 for labeling); ωglires, ω of Glires (see Figure S7B for labeling); ωhcg, ω of human, chimp and gorilla; ωrp, ω of rhesus monkey and hamadryas baboon; ωothprim, ω of all other primates except species labeled as foreground branches in respective branch-site test of positive selection; ωothmam, ω of all other mammals except species labeled as foreground branches in branch-site test of positive selection.