89E3;90A2-90A3
89E3-89E4;90A2-90A3
bk1 << Abd-B << bk2
Fails to complement the loss of function iab-7 phenotype of Df(3R)R59.
Heterozygotes with Df(3R)Ubx-RS4-8 or Df(3R)Abd-BS10 have seven fully developed abdominal segments rather than the normal six, with no A7 development, due to anterior transformation of A7. Pigmentation in A6 and A7 is complete. Microscopic examination confirms the presence of A5 and A6 identities.
Break in BX-C maps to +145.5-148.5. The Abd-Biab7-MX2 breakpoint may separate iab5,6,7 from a specific region required for its action in trans. The trans-required region maps between the Abd-Biab7-MX2 breakpoint (in the interval +139.5-142kb) and the Df(3R)ul10 break point (in the interval +145.5-148.5kb).
Left limit of break 1 from polytene analysis (FBrf0080101) Right limit of break 1 from inclusion of Abd-B (FBrf0080101) Limits of break 2 from polytene analysis (FBrf0080101)