Table 1.

DNA variation in Drosophila non-coding DNA. Averages values per site (±1 s.e.) are reported for IGs, INs and for the combined dataset. Divergences are Jukes–Cantor corrected.

	nucleotide diversity θ	divergence from D. simulans	divergence from D. yakuba	Tajima's D
INs	0.0124±0.0006	0.0653±0.0025	0.1613±0.0065	−0.660±0.053
IGs	0.0129±0.0008	0.0585±0.0030	0.1465±0.0073	−0.738±0.065
all	0.0126±0.0005	0.0623±0.0020	0.1546±0.0049	−0.695±0.041