TABLE 2

Estimates of variance introduced each generation by spontaneous mutation in A. thaliana, based on joint analysis of generations 8 and 17

TraitVmVm/Ve × 103CVm
Seeds/fruit0.07*1.340.64
(0.04)
Fruits2.01**1.685.1
(1.11)
Reproductive
mass (mg)1.45***2.14.2
(0.72)
  • Standard errors are given in parentheses. Because variance components are necessarily positive, a one-sided test is appropriate; thus, an estimate of a variance component is significantly greater than zero (P < 0.05) if it exceeds its standard error by a factor of 1.645. * P < 0.05; ** P < 0.01; *** P < 0.005, based on likelihood ratio tests of H0: VM = 0.