Hybrid dysgenesis-induced response to selection in Drosophila melanogaster
نویسندگان
چکیده
منابع مشابه
Transposable element-induced response to artificial selection in Drosophila melanogaster.
The P family of transposable elements in Drosophila melanogaster transpose with exceptionally high frequency when males from P strains carrying multiple copies of these elements are crossed to females from M strains that lack P elements, but with substantially lower frequency in the reciprocal cross. Transposition is associated with enhanced mutation rates, caused by insertion and deletion of P...
متن کاملRepression of P element-mediated hybrid dysgenesis in Drosophila melanogaster.
Inbred lines derived from a strain called Sexi were analyzed for their abilities to repress P element-mediated gonadal dysgenesis. One line had high repression ability, four had intermediate ability and two had very low ability. The four intermediate lines also exhibited considerable within-line variation for this trait; furthermore, in at least two cases, this variation could not be attributed...
متن کاملMolecular lesions associated with white gene mutations induced by I-R hybrid dysgenesis in Drosophila melanogaster.
We have identified molecular lesions associated with six mutations, w and w, of the white gene of Drosophila melanogaster. These mutations arose in flies subject to I-R hybrid dysgenesis. Four of the mutations give rise to coloured eyes and are associated with insertions of 5.4-kb elements indistinguishable from the I factor controlling I-R dysgenesis. The insertion associated with w is at a si...
متن کاملHybrid Dysgenesis in DROSOPHILA MELANOGASTER: Morphological and Cytological Studies of Ovarian Dysgenesis.
A type of intraspecific hybrid sterility, between two strains of Drosophila melanogaster, referred to as GD (gonadal dysgenesis) sterility, is observed when females from a type of strain called M are crossed with males from a second type called P. Absence of egg-laying is characteristic of female GD sterility and its manifestation is conditional on high developmental temperatures. Morphological...
متن کاملHybrid dysgenesis-induced quantitative variation on the X chromosome of Drosophila melanogaster.
To determine the ability of the P-M hybrid dysgenesis system of Drosophila melanogaster to generate mutations affecting quantitative traits, X chromosome lines were constructed in which replicates of isogenic M and P strain X chromosomes were exposed to a dysgenic cross, a nondysgenic cross, or a control cross, and recovered in common autosomal backgrounds. Mutational heritabilities of abdomina...
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ژورنال
عنوان ژورنال: Genetical Research
سال: 1989
ISSN: 0016-6723,1469-5073
DOI: 10.1017/s0016672300028640