Table 1

Parameters describing the fixation of beneficial mutations under each N e. The number of lines that increased fitness is reported in the second column. The third column shows the number of generations elapsed until fixation of a beneficial mutation (8). A significant correlation between log N e and the time to fixation has been observed (ρS = 0.75, n = 5, one-tailP = 0.0261). The last column shows the probability of fixation by random genetic drift (15).

Log NeLines that increased fitness Time to fixation P
2.0238 1 76.045  ±  17.168 0.0440
3.4247 4234.003  ±  48.354 0.0113
4.3644 3 185.099  ±  32.356 0.0001
5.2940 5 288.693  ±  18.558<0.0001
6.2103 5 328.922  ±  31.558 <0.0001
7.1065 5 347.502  ±  13.839 <0.0001
7.96955 283.386  ±   9.943 <0.0001