Table 1. Levels of polymorphism at two loci near the 2Rj breakpoint junction from standard and inverted chromosomes.

Genea	No. of Chromosomes	No. ofSitesb	S	Syn	Non	π	θ
1334 (outside inversion)
2R+j	28	398	18	18	0	0.0082	0.0116
2Rj	18	397	6	5	1	0.0028	0.0044
2110 (inside inversion)
2R+j	20	412	16	14	2	0.0075	0.0109
2Rj	22	410	2	2	0	0.0004	0.0013

S, number of segregating sites; Syn, number of synonymous changes; Non, number of nonsynonymous changes; π, average pairwise difference per site; θ, population mutation rate parameter 4Nμ per site based on S.

^aComplete gene ID numbers are AGAP001334 and AGAP002110.

^bNumber of sites used in calculations. Introns and gaps were excluded.