Table 1. Probability of identity (PI) and measures of genetic diversity at 12 microsatellite loci in our capercaillie population sorted by polymorphic information content (PIC).

Locus	N	A	R	Ho	He	PIC	PI	PIsib	HW	FNull
sTuD7-FAM	119	2	2	0.639	0.489	0.369	0.382	0.602	0.001*	-0.135
sTuD3-NED	119	5	5	0.496	0.517	0.444	0.306	0.569	0.076	0.017
sTuT1-VIC	118	4	3.992	0.364	0.511	0.456	0.294	0.569	0.000*	0.154
sTuT3-FAM	120	5	5	0.492	0.527	0.469	0.282	0.558	0.555	0.036
sTuD6-NED	119	12	11.966	0.571	0.528	0.509	0.241	0.548	0.728	-0.061
BG15-FAM	117	5	5	0.607	0.597	0.527	0.232	0.511	0.069	-0.007
sTuT2-VIC	120	5	4.999	0.533	0.586	0.538	0.219	0.513	0.008	0.043
sTuD1-NED	120	6	5.975	0.708	0.722	0.669	0.129	0.423	0.099	0.011
sTuD4-NED	118	8	7.991	0.678	0.741	0.697	0.11	0.409	0.196	0.044
sTuT4-PET	120	5	5	0.683	0.769	0.727	0.093	0.391	0.136	0.055
BG18-FAM	120	7	6.95	0.817	0.781	0.743	0.085	0.382	0.068	-0.025
sTuD5-PET	120	10	9.974	0.833	0.859	0.838	0.038	0.332	0.539	0.012
Across loci		6.167 (0.787)	6.154 (0.783)	0.618 (0.04)	0.636 (0.038)	0.582 (0.042)	5.0582E-10	1.3403E-04

Across loci = means (and SE) over loci for A, R, H_o and H_e, and combined probability for PI and PI_sib over all loci. HW = p-value of exact test [32], with asterisks indicating significant deviation from HW expectations at a Bonferroni-corrected α-level of 0.0042 (p-value of 0.05 divided by 12). N = number of samples, A = number of alleles, R = allelic richness (based on a minimum sample size of 117 individuals), H_o = observed heterozygosity, H_e = expected heterozygosity, PIC = polymorphic information content, a measure of informativeness related to expected heterozygosity and calculated from allele frequencies [31], PI = probability of identity, PI_sib = probability of identity considering the possible presence of siblings (see [30]), F_Null = Frequency of null alleles per locus; negative values indicate excess of observed heterozygote genotypes.