Table 2. The absolute values of correlation coefficient of the eight statistical methods were under the null hypothesis (upper triangular) and chicken data (lower triangular), respectively.

	XPEHH	XPCLR	|iHS|	CLR	Tajima D	FuLi D	FuLi F	FST
XPEHH		0.04	0.03	0.00	0.05	0.03	0.04	0.05
XPCLR	0.03 (0.03)		0.01	0.00	0.01	0.01	0.01	0.10
|iHS|	0.13 (0.08)	0.01 (0.02)		0.02	0.05	0.07	0.04	0.01
CLR	0.03 (0.02)	0.00 (0.01)	0.01 (0.02)		0.03	0.03	0.03	0.00
Tajima D	0.16 (0.13)	0.05 (0.05)	0.18 (0.16)	0.17 (0.19)		0.61	0.75	0.02
FuLi D	0.03 (0.01)	0.03 (0.02)	0.17 (0.13)	0.12 (0.10)	0.07 (0.18)		0.97	0.01
FuLi F	0.11 (0.09)	0.01 (0.02)	0.04 (0.03)	0.20 (0.20)	0.82 (0.80)	0.63 (0.73)		0.01
FST	0.03 (0.03)	0.23 (0.26)	0.05 (0.07)	0.01 (0.02)	0.02 (0.03)	0.07 (0.04)	0.03 (0.01)

Abbreviations: CLR, composite likelihood ratio; iHS, integrated haplotype score; XPCLR, cross-population composite likelihood ratio; XPEHH, cross population extended haplotype homozogysity.

Note: the correlation coefficients in lower triangular were calculated using those statistic which deleted all loci located at the top 5% quantile in any of the used statistics. Correspondingly, the scores out and in bracket represent the correlation coefficients in yellow skin population and white skin population, respectively. The absolute values of correlation coefficient of the eight statistical methods in human population were displayed in Supplementary Table S6.