Complete Issue - University of Oklahoma

DIS 75 (July 1994) Mutation Notes 37
breakpoints at 84B1 and 84E1. Relative to D. melanogaster, then, the D. simulans Ub;x chromosome has the sequence:
61-81F1l89El-93F /84F-84ElI84Bl-84E1/84Bl-81F1/89El-84F /93F-100. (The underlied region is the region
inverted relative to the normalD. simulans 3R).
Delta is cyologicay located in region 92 in D. melanogaster, and Ubx at 89E1 (Lindsley and Zim, 199). Ubx
is, therefore, located at one inversion breakpoint, and Dl is with the inverted region. It is, therefore, not surriin
that no recombinants were observed.
Although the region balanced by th chomosome is rather smal the stock is usefu because it alows one to keep
two dominant aleles in trans condition without selection.
References: Ashbumer, M. 1989, Drosophila: A Laboratory Handbook. Cold Sprig Harbor Laboratory Press;
Lindsley, D.L. and G.G. Zimm 199, The Genome of Drosophila melanogaster. Academic Press, Inc., San Diego.
Guide to Contributors
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