Research Article

Within-Niche Constant Selection of Drosophila Inversions?

Table 1

ML estimates of frequency-, sex-, and stage-independent adaptive values, , and initial frequencies, , from observed frequencies of arrangements of the chromosome along generations of experimental populations of Drosophila subobscura [33], goodness of fit, , and degrees of freedom, df, to test the adequacy of the selection model to the data and equilibrium frequencies, , predicted by the estimates.

PopulationArrangement df

0.040 ± 0.0110.936 ± 0.4561.450 ± 1.6721.083 ± 0.20617.373***30.424
H2 0.735 ± 0.0260.367 ± 3.4621.707 ± 4.5840.338
0.225 ± 0.0240.456 ± 3.1080.238

0.158 ± 0.0221.030 ± 0.1151.045 ± 0.0831.107 ± 0.25926.105***70.596
T1 0.590 ± 0.0320.812 ± 0.0781.240 ± 0.2250.171
0.252 ± 0.0290.766 ± 0.3080.233

0.333 ± 0.0241.069 ± 0.0410.613 ± 0.1031.045 ± 0.0438.07271
P2 0.225 ± 0.0191.963 ± 0.2860.551 ± 0.2190
0.443 ± 0.0290.759 ± 0.1250

The less frequent arrangements are pulled together into the category , which is dominated by arrangements or [33].
.