Table 3.

Summary Statistics of the Frequency Spectra for AT and GC Mutations under Different Expression and Recombination Criteria

	Highly Expressed				Lowly Expressed
	AT to GC		GC to AT		AT to GC		GC to AT
	Da	D*b	Da	D*b	Da	D*b	Da	D*b
High crossing-over rate	−0.1326	0.0730	−0.0388	0.1596	−0.0398	0.2231	0.0496	0.3152
Low crossing-over rate	−0.3726	−0.3993	−0.0250	0.0938	0.1966	0.4605	0.0473	0.1246

^aTajima’s D.

^bFu and Li’s D*.