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Table 2 Partitioning of genetic variability among different sources of variation by AMOVA, considering the effects of species, country or group

From: Genetic structure, relationships and admixture with wild relatives in native pig breeds from Iberia and its islands

 

Factor considered

Speciesa

Countryb

Groupc

Sum of squares / degrees of freedom

   

  Among factors

193.1 / 1

104.5 / 1

809.7 / 2

  Among breeds within factors

2331.4 / 15

2160.8 / 13

949.0 / 9

  Within breeds

10380.5 / 1671

8810.6 / 1447

7690.1 / 1262

Variance components

   

  Among factors

−0.022

−0.181

0.988

  Among breeds within factors

1.607

1.742

0.983

  Within breeds

6.451

6.319

6.320

Percentage variation

   

  Among factors

−0.28

−2.30

11.92

  Among breeds within factors

20.00

22.11

11.85

  Within breeds

80.28

80.19

76.23

F-statisticsd

   

  Among factors (FCT)

−0.003ns

−0.023ns

0.119**

  Among breeds within factor (FSC)

0.199**

0.216**

0.134**

  Among breeds relative to total variability (FST)

0.197**

0.198**

0.119**

  1. awild vs. domestic pigs; bcountry of origin of domestic breeds: Portuguese vs. Spanish domestic breeds; cgroups of continental Iberian domestic breeds, as outlined in Table 1: Mediterranean, Celtic and Basque; dsignificance of F-statistics: ns (P > 0.1) and ** (P < 0.001).