This is a detailed study of the reversions of the ctMR2 allele putatively carrying รก mobile element (MR-transposon) in the cut locus. Stable, unstable and superunstable revertants have been identified. Besides, a series of multiple unstable visible and lethal ct mutations derived from the ctMR2 alle
Suppressible P-element alleles of the vestigial locus in Drosophila melanogaster
โ Scribed by Williams, Jim A. ;Pappu, Sita S. ;Bell, John B.
- Publisher
- Springer
- Year
- 1988
- Tongue
- English
- Weight
- 672 KB
- Volume
- 212
- Category
- Article
- ISSN
- 0026-8925
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The penetrance in heterozygotes of vestigial mutants was analysed. Two ,genetic modifier systems, one enhancing, the other diminishing the penetrance of vg in heterozygotes were postdated. Both modifiers were found either in the wild or in the mutant strains, and are located on the X chromosome. Fr
The vestigal (vg) gene encodes a nuclear protein which plays a major role in the formation of the wing of Drosophila. Resistance or sensitivity to aminopterin, an inhibitor of the dihydrofolate reductase enzyme in D. melanogaster, seems to be associated with a specific alteration in vg gene function
The first complete paragraph in the left-hand column on page 212 should have read: The matrix in Table 5 displays 72 heteroallelic combinations involving QUI/ONC and QUI/DIF alleles. Data for the eight QUI homozygotes appear in the left column. The matrix in Table 6 displays the 36 heteroallelic co
The P family of transposable genetic elements is thought to be a recent addition to the Drosophila melanogaster genome. New evidence suggests that the elements came from another Drosophila species, possibly carried by parasitic mites. The transposition mechanism of P elements involves DNA gap repair