蕨类植物rpoC1内含子缺失及其分子进化速率

彭阳,苏应娟,王艇

Intron Loss and Molecular Evolution Rate of rpoC1 in Ferns

Yang Peng,Yingjuan Su,Ting Wang

表4 rpoC1基因在不同模型下的参数估计值和对数似然值

Table 4 Parameters estimates and log-likelihood values of the rpoC1 gene under different models

Model Np ? Parameter estimate Positive selection sites Branch model M0 128 -33984.0181 ω=0.18862 Not allowed MA 129 -33971.0708 ω1=0.19344, ω2=0.07154 Not allowed Site model Model 1a (M1a) 129 -33025.1095 P0=0.77581, ω0=0.09604 Not allowed P1=0.22419, ω1=1.00000 Model 2a (M2a) 131 -33003.8671 P0=0.77323, ω0=0.09782 687P**, 697S** P1=0.20583, ω1=1.00000 692S**, 700A* P2=0.02094, ω2=2.53148 Model 3 (M3) 132 -32770.6265 P0=0.45915, ω0=0.02383 None P1=0.39593, ω1=0.23422 P2=0.14492, ω2=0.91531 Model 7 (M7) 129 -32768.3591 P=0.36168, q=1.11178 Not allowed Model 8 (M8) 131 -32715.0671 P0=0.95310, P=0.46388 578V*, 579Y*, 686S* q=2.02806, P1=0.04690 687P**, 689T*, 692S** ω=1.62513 693I*, 696T*, 697S**, 700A* Model 8a (M8a) 130 -32735.2130 P0=0.91188, P=0.48169 None q=2.38635, P1=0.08812 ω=1.00000 Branch-site model Ma0 130 -33025.1095 P0=0.77581, P1=0.22419 Not allowed P2a+P2b=0.00000, ω2=1.00000 Ma1 131 -33025.1095 P0=0.77581, P1=0.22419 None P2a+P2b=0.00000, ω2=1.00000