Table 1.

Genetic differentiation among populations of Quercus petraea measured by pairwise F_ST (below diagonal): significance values based on the permutation of microsatellite genotypes among populations (above diagonal)

	North		Central		South
	Breen	Correl Glen	Pollnaknockaun	Garranon	Tomies	Derrycunihy	Glengarriff	Eastern France	SW France	Spain
Breen		ns	ns	ns	ns	ns	ns	*	ns	ns
Correl Glen	0·013		**	**	ns	ns	ns	**	ns	**
Pollnaknockaun	0·008	0·020		ns	ns	ns	ns	**	ns	ns
Garranon	0·011	0·024	0·004		ns	ns	ns	**	ns	ns
Tomies	0·002	0·006	0·001	0·006		ns	ns	**	ns	ns
Derrycunihy	0·006	0·012	0·004	0·008	0·002		ns	**	ns	ns
Glengarriff	0·007	0·019	0·003	0·008	0·004	0·004		**	ns	ns
Eastern France	0·028	0·036	0·033	0·029	0·031	0·027	0·033		ns	ns
SW France	0·005	0·016	0·018	–0·001	0·007	0·008	0·010	0·010		ns
Spain	0·014	0·032	0·015	0·010	0·017	0·016	0·009	0·040	0·011

P‐values determined using 10 000 replicates. **, P ≤ 0·01, *, P ≤ 0·05,

ns, not significant (after Bonferroni correction); SW, south‐western.