Table 2 Characterization of genetic diversity (H_E) and mating system parameters in four Alcantarea inselberg species

Species	Population	N	H_E	F_IS	F_ij(1)	P(F_IS>F_ij(1))
A. geniculata	GRC	64	0.357	0.192^***	0.054	^***
A. imperialis	IMC	112	0.392	0.078	0.039	^**
	IMC Green	46	0.361	−0.010	0.055	NS
	IMC red	60	0.381	0.064	0.052	NS
	IJF	52	0.441	0.113^***	−0.005	^*
A. regina	RP1	52	0.514	0.009	0.051	NS
	RP2	36	0.415	−0.097	0.059	NS
A. glaziouana	LPI	54	0.242	0.265^***	−0.011	^***
	LPP	60	0.445	0.084^**	0.107	NS
	LNI	34	0.383	0.205^**	0.235	NS
	LPA West	22	0.576	0.556^***	0.625	NS
	LPA East	28	0.432	0.127	0.047	NS

Abbreviation: NS, not significant.
See text for details.
P(F_IS>F_ij(1)) is the P-value of a one-sided Kolmogorov–Smirnov test with alternative hypothesis that the cumulated frequency distribution of the inbreeding coefficient F_IS lies under that of the corresponding pairwise kinship coefficient at short distance, F_ij(1), using population data as a reference. The test is significant if F_IS is stochastically larger than F_ij(1), indicating that selfing is the main factor responsible for inbreeding. N is the number of chromosomes, which is twice the number of individuals sampled in each population.
^*P<0.05; ^**P<0.01; ^***P<0.001.

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