Test of hypothesis on the coefficient of coancestry in haploid populations

The distribution of the allelic frequency mean squares in the analysis of v ariance of samples of individuals from haploid populations were studied to evaluate the Snedecor F test, for testing the null hypothesis relative to t he coancestry coefficient. It was found that the distribution of the sum of the squares among populations and the sum of squares among individuals wit hin the populations divided by the respective expected mean squares had dis tribution following approximately the chi (2), indicating that the quotient among the mean squares of the analysis of variance approximate the F distr ibution. A simulation study to validate the suggested approximations, compa ring the simulated values to those of the theoretic F distribution, was car ried out. The results showed that the F test may be used to test the coance stry coefficient null hypothesis, when the allelic frequency is between 0.3 and 0.7, working with 50 individuals.