TABLE 1.

Summary statistics of polymorphism data in the subsegment of ∼10 kb

					Estimates of c (×10−8) based on ρLDe
	Sa	πb	θWc	Dd	f = 0	f = 2, L = 500	f = 5, L = 60
Western chimpanzees	31	6.62	7.83	−0.56	0.90	0.62	0.75
Hausa	85	15.05	21.11	−1.08	13.99	5.92	8.69
Italians	64	17.20	15.89	0.31	2.88	1.55	2.22
Chinese	59	15.98	14.65	0.34	1.65	0.99	1.35

^aNumber of polymorphic sites.

^bNucleotide diversity (×10⁻⁴) (Tajima 1989b).

^cWatterson's estimator of the population mutation rate parameter θ = 4N_eμ (×10⁻⁴) (Watterson 1975).

^dTajima's D (Tajima 1989b).

^eEstimate of the crossover rate (×10⁻⁸) based on the composite-likelihood estimate of ρ_LD calculated using MAXDIP (see materials and methods).