Table 5 Genetic diversity statistics assayed per Portuguese P. nigra population. Mean (± standard deviation, s.d.) values of na, ne, I, h, H_o, H_e and F per SSR locus are presented. Notes: na, observed number of alleles; ne, effective number of alleles (Kimura and Crow 1964); I, Shannon’s Information Index (Lewontin 1972); h, Nei’s gene diversity index (Nei 1973); H_o, observed heterozygosity; H_e, expected heterozygosity (Levene 1949) and F, fixation index

Manteigas

11.54 ± 1.66

5.44 ± 0.78

1.84 ± 0.18

0.75 ± 0.05

0.54 ± 0.05

0.76 ± 0.05

0.270 ± 0.050

Vale do Zêzere

12.31 ± 1.78

6.86 ± 1.24

1.94 ± 0.20

0.76 ± 0.06

0.59 ± 0.06

0.77 ± 0.06

0.22 ± 0.06

Campeã

12.46 ± 1.81

6.55 ± 1.21

1.91 ± 0.21

0.75 ± 0.05

0.59 ± 0.05

0.76 ± 0.06

0.19 ± 0.07

Paredes de Coura

12 ± 1.70

6.80 ± 1.14

1.94 ± 0.21

0.76 ± 0.06

0.62 ± 0.07

0.77 ± 0.06

0.18 ± 0.05

Vila Pouca de Aguiar

8.46 ± 1.14

4.76 ± 0.71

1.61 ± 0.17

0.70 ± 0.05

0.61 ± 0.06

0.71 ± 0.05

0.13 ± 0.06

Caminha

11.15 ± 1.54

5.61 ± 0.91

1.81 ± 0.18

0.75 ± 0.05

0.60 ± 0.06

0.75 ± 0.05

0.18 ± 0.05

Total mean

11.32 ± 0.66

6.00 ± 0.41

1.84 ± 0.08

0.74 ± 0.02

0.74 ± 0.02

0.76 ± 0.02

0.20 ± 0.02