Table 2

Analysis of molecular variance (AMOVA) testing for partitioning of genetic variation among roach samples, grouped according to geography
Source of variation d.f. Sum of squares Variance % Total P-value
Geographical partition, locationa
Among locations 32 584.063 0.11631 2.27 <0.00001
Among samples within locations 6 35.197 0.00953 0.19 0.03226
Within samples 3,499 17,489.296 4.99837 97.54 <0.00001
Total 3,537 18,108.556 5.12421
Geographical partition, catchmentb
Among groups 5 189.529 0.06309 1.22 <0.00001
Among samples within groups 33 429.731 0.08909 1.73 <0.00001
Within samples 3,499 17,489.296 4.99837 97.05 <0.00001
Total 3,537 18,108.556 5.15055

aSamples from same location caught in different years are grouped; bSamples grouped by catchment (Aire, Arun, ‘Blackwater and Chelmer’, Nene, Thames and Trent).

Hamilton et al.

Hamilton et al. BMC Biology 2014 12:1   doi:10.1186/1741-7007-12-1

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