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Developmental genetics of a P element induced allele of suppressor-of-forked in Drosophila melanogaster

โœ Scribed by Girton, Jack R. ;Langner, Karen ;Cejka, Nancy

Publisher
Springer-Verlag
Year
1986
Tongue
English
Weight
753 KB
Volume
195
Category
Article
ISSN
1432-041X

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โœฆ Synopsis

In this paper we describe a new allele of suppressor of forked, su(f) , referred to as hd37, which was isolated in a hybrid dysgenesis mutation screen and is shown to be P induced by its high frequency of reversion in hybrid dysgenic crosses, and by in situ hybridization. hd37 suppresses forked and fails to complement the forked suppression of known su(f) alleles. However, it complements the recessive lethality of alleles in both of the su(f) lethal complementation groups. We also describe a new phenotypic effect of su(f) alleles, the enhancement of Minute(3)i . Recessive lethal alleles enhance the lethal effects of this Minute, but hd37 does not. The temperature sensitive period for forked bristle suppression by hd37 was found to be very narrow, consisting of a short interval (12-18 h) immediately before bristle formation. These results suggest that the several genetic functions associated with this locus may be genetically separable.

๐Ÿ“œ SIMILAR VOLUMES

High levels of recombination induced by
High levels of recombination induced by homologous P elements in Drosophila melanogaster
โœ Sved, John A. ;Blackman, Leila M. ;Stuart Gilchrist, A. ;Engels, William R. ๐Ÿ“‚ Article ๐Ÿ“… 1991 ๐Ÿ› Springer ๐ŸŒ English โš– 763 KB

P element transposons in Drosophila melanogaster are capable of mobilizing incomplete P elements elsewhere in the genome, and of inducing recombination. This recombination is usually only of the order of 1% or less. We show that two P elements, located at exactly homologous sites, induce levels of r