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

P-value

FCT

0.566

0.013

FSC

0.077

< 0.001

FST

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 FCT: genetic variation between regions; FSC: genetic variation among populations within regions; and FST: genetic variation among all populations. Significance (P) is the probability of finding a variance component and F-statistic that are greater than or equal to the observed values and was tested using a non-parametric approach (Excoffier et al. 1992), with at least 3,000 permutations of the dataset.

Rocha et al. BMC Evolutionary Biology 2008 8:157   doi:10.1186/1471-2148-8-157

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