Inheritance of P-element regulation in Drosophila melanogaster

The ability to repress P-element-induced gonadal dysgenesis was studied in 14 wild-type strains of D. melanogaster derived from populations in the central and eastern United States. Females from each of these strains had a high ability to repress gonadal dysgenesis in their daughters. Reciprocal hyb...

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Bibliographic Details
Published in:	Genetical Research 1991-06, Vol.57 (3), p.227-234
Main Authors:	Raymond, John D., Ojala, Todd A., White, Jennifer, Simmons, Michael J.
Format:	Article
Language:	eng
Subjects:	Animals Biological and medical sciences chromosome transmission Classical genetics, quantitative genetics, hybrids crossing cytoplasmic inheritance Diptera Drosophila melanogaster Drosophilidae dysgenesis female fertility Fundamental and applied biological sciences. Psychology Genetics of eukaryotes. Biological and molecular evolution gonadal dysgenesis gonads hybrids inhibition Invertebrata kp element Southern blotting transposons wild strains
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Summary:	The ability to repress P-element-induced gonadal dysgenesis was studied in 14 wild-type strains of D. melanogaster derived from populations in the central and eastern United States. Females from each of these strains had a high ability to repress gonadal dysgenesis in their daughters. Reciprocal hybrids produced by crossing each of the wild-type strains with an M strain demonstrated that repression ability was determined by a complex mixture of chromosomal and cytoplasmic factors. Cytoplasmic transmission of repression ability was observed in all 14 strains and chromosomal transmission was observed in 12 of them. Genomic Southern blots indicated that four of the strains possessed a particular type of P element, called KP, which has been proposed to account for the chromosomal transmission of repression ability. However, in this study several of the strains that lacked KP elements exhibited as much chromosomal transmission of repression ability as the strains that had KP elements, suggesting that other kinds of P elements may be involved.
ISSN:	0016-6723 1469-5073