INTERACTING GENE SYSTEMS: I. THE REGULATION OF TRYPTOPHAN PYRROLASE BY THE VERMILION-SUPPRESSOR OF VERMILION SYSTEM IN DROSOPHILA
نویسندگان
چکیده
منابع مشابه
Enzymatic studies with the suppressor of vermilion of Drosophila melanogaster.
UPPRESSION is the complete or partial restoration of the wild-type phenotype by one gene in the presence of another nonallelic mutant gene that alone causes a mutant phenotype. Intragenic “suppressors” have also been reported (CRICK, BARNETT, BRENNER and WATTS-TOBIN 1961; HELINSKI and YANOFSKY 1963) but the term “second site reversion” used by HELINSKI and YANOFSKY seems useful in distinguishin...
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15 صفحه اولI. Contrasts Between the vermilion andforked Loci
We have surveyed three natural populations of Drosophila ananassae for restriction map variation at the forked c f ) and vermilion (v ) loci, using 6-cutter restriction enzymes. Both loci are located in the centromeric region of the X chromosome. Two major conclusions can be drawn from the data. First, we found strong evidence for population subdivision, i .e . , significant differences in the ...
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The nature of DNA sequence changes induced by methyl methanesulfonate (MMS) at the vermilion locus of Drosophila melanogaster was determined after exposure of postmeiotic male germ cell stages. MMS is a carcinogen with strong preference for base nitrogen alkylation (s = 0.86). The spectrum of 40 intralocus mutations was dominated by AT----GC transitions (23%), AT----TA transversions (54%) and d...
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ژورنال
عنوان ژورنال: Genetics
سال: 1969
ISSN: 1943-2631
DOI: 10.1093/genetics/62.4.781