Table 2.

Summary Statistics of the Frequency Spectra for AT and GC Mutations

Type of Mutation	Region	Tajima’s D		Fu and Li’s D*		P Value of MWU Test
		AT to GC	GC to AT	AT to GC	GC to AT
Noncoding	Autosome	−0.625	−0.698	−0.632	−0.828	0.0002119
	X	−0.658	−0.734	−0.742	−0.969	7.424e−05
Synonymous	Autosome	−0.109	−0.003	0.139	0.166	8.946e−11
	X	−0.456	−0.227	−0.959	0.004	1.519e−11
	High crossing-over rate	−0.063	0.002	0.247	0.243	1.564e−10
	Low crossing-over rate	−0.016	−0.019	0.166	0.079	6.651e−11
	Highly expressed genes	−0.324	−0.096	−0.446	−0.059	6.456e−11
	Lowly expressed genes	−0.182	0.055	0.064	0.286	1.256e−10