Genetic hitchhiking in a subdivided population of Mytilus edulis

Table 1 Sample sizes, molecular diversities and tests of neutrality

Sample name :	Dataset type	n	S	S _syn	S _ns	S _i	θ _W	θ_π	R _m	D	H
*M. galloprovincialis* Atlantic (FA+PR)	HQ	9	46	4	2	40	0.017	0.013 ± 0.003	1	-1.37	-7.11
*M. edulis* Bay of Biscay (LU)	G	24	76	8	2	66	0.017	0.014 ± 0.002	0	-0.72	-0.97
	HQ	18	58	5	1	52	0.014	0.015 ± 0.002	0	0.12	-0.78
*M. edulis* North Sea (WS)	G	13	57	8	4	45	0.015	0.007 ± 0.003	0	-2.29***	-13.17**
	HQ	7	44	6	3	35	0.015	0.01 ± 0.005	0	-1.67**	-10.19*

G, global dataset; HQ, high quality subset exclusively composed of sequences captured several times; n, sample size; S, number of polymorphic sites; S_syn, number of synonymous polymorphic sites; S_ns, number of non-synonymous polymorphic sites; S_i, number of intronic polymorphic sites; θ_W, nucleotide diversity estimated from the number of polymorphic sites [68];, θ_π nucleotide diversity estimated from the average number of pairwise differences [37] with standard deviation; R_m, estimation of the minimum number of recombination [69]; D, Tajima's D [39]; H, Fay and Wu's H [4]. *P < 0.05, **P < 0.01, ***P < 0.001.

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