Table 3 

Analysis of molecular variance (AMOVA) of Chromis multilineata 

Source of variation 
Sum of Squares 
Percentage of variation 
Variance components 


Between groups 
239.036 
56.65 
3.575 
Within groups 
53.533 
3.32 
0.212 
Within populations 
439.042 
39.99 
2.523 
Fixation Indices 
Pvalue 

F_{CT} 
0.566 
0.013 

F_{SC} 
0.077 
< 0.001 

F_{ST} 
0.600 
< 0.001 



Two groups were defined, western Atlantic, comprising the combination of the Brazilian, Caribbean and central Atlantic island populations, and eastern Atlantic, composed of Cape Verde and Sao Tome. Fixation indices are F_{CT}: genetic variation between regions; F_{SC}: genetic variation among populations within regions; and FST: genetic variation among all populations. Significance (P) is the probability of finding a variance component and Fstatistic that are greater than or equal to the observed values and was tested using a nonparametric approach (Excoffier et al. 1992), with at least 3,000 permutations of the dataset. 

Rocha et al. BMC Evolutionary Biology 2008 8:157 doi:10.1186/147121488157 