THE REGULATION OF WHITE LOCUS EXPRESSION: A DOMINANT MUTANT ALLELE AT THE WHITE LOCUS OF DROSOPHILA MELANOGASTER
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چکیده
منابع مشابه
The Regulation of White Locus Expression: A Dominant Mutant Allele at the White Locus of DROSOPHILA MELANOGASTER.
A new mutant allele (w(DZL)) at the white locus of Drosophila melanogaster is dominant to the wild-type allele, but apparently only when the two alleles are synapsed. When chromosomal rearrangements prevent somatic pairing between the two white alleles, w(DZL) is rendered recessive to wild type. This observation suggests that the dominance of w(DZL) is sensitive to a synapsis (transvection) eff...
متن کاملSomatic Recombination within the White Locus of DROSOPHILA MELANOGASTER.
HE X-linked white locus of Drosophila melanogaster is a complex region of Tthe chromosome which has been subdivided into a number of sites (LEWIS 1952; MACKENDRICK and PONTECORVO 1952; GREEN 1959, 1964; JUDD 1959, 1964). Heterozygotes for two mutant alleles mapping at different sites in the white region (except for compounds with the right-most site, for white-spotted) do not show complementati...
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LMOST coincidental with the rediscovery of Mendelism, genes of high sponA taneous mutation rate, often referred to as unstable, labile or mutable genes, were found. Such mutable genes, although not described as such, were identified in association with variegated phenotypes especially noticeable in plants as flower color variegation. R. A. EMERSON (1914, 191 7) from his studies of variegated pe...
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We surveyed sequence variation and divergence for the entire 5972-bp transcriptional unit of the white gene in 15 lines of Drosophila melanogaster and one line of D. simulans. We found a very high degree of haplotypic structuring for the polymorphisms in the 3' half of the gene, as opposed to the polymorphisms in the 5' half. To determine the evolutionary mechanisms responsible for this pattern...
متن کاملDirect Proof of a Variegated-Type Position Effect at the White Locus in Drosophila Melanogaster.
ARIEGATED-type position effect in Drosophila melunoguster has received a V considerable amount of attention from many investigators (See review by LEWIS 1950). Direct proof of this phenomenon has been obtained for only two cases however. DUBININ and SIDOROV (1935) showed that the action of the gene for hairy (h) was affected when this locus was placed near heterochromatin of the fourth chromoso...
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ژورنال
عنوان ژورنال: Genetics
سال: 1980
ISSN: 1943-2631
DOI: 10.1093/genetics/95.2.341