DISTRIBUTION OF "SEX-RATIO" AGENT IN TISSUES OF DROSOPHILA WILLISTONI
نویسندگان
چکیده
منابع مشابه
Maternally Inherited "Sex-Ratio" Conditions in Drosophila Willistoni and Drosophila Paulistorum.
AGNI ( 1952, 1954) and CAVALCANTI and FALCAO ( 1954) have independently discovered strains of Drosophila bifasciata and of Drosophila prosaltans, respectively, which produce progenies consisting mostly or only of females. These abnormalities are transmitted exclusively from mothers to their daughters. Females from the %ex-ratio” strains produce unisexual, or almost unisexual, progenies when cro...
متن کاملExperimental Transfer of Maternally Inherited Abnormal Sex-Ratio in Drosophila Willistoni.
N previous communications (MALOGOLOWKIN and POULSON 1957; MALOGOI LOWKIN 1958) a cytoplasmically inherited sex-ratio condition has been described in Drosophila willistoni and in D. paulistorum. In both species, certain females produce progenies consisting mostly or only of daughters. This capacity for the production of unisexual broods is inherited by their entire female progenies and is not tr...
متن کاملInterspecific Transfer of the "Sex-Ratio" Condition from Drosophila Willistoni to D. Melanogaster.
HE infectious nature of the maternally transmitted “sex-ratio’’ condition, TSR , in Drosophila willistoni has been clearly established ( MALOGOLOWKIN and POULSON 1957; MALOGOLOWKIN, POULSON and WRIGHT 1959) and it has been demonstrated that the infectious SR agent is present at high levels in the hemolymph of adult SR females of that species (SAKAGUCHI and POULSON 1961a). The latter finding sug...
متن کاملEnzyme variability in the Drosophila willistoni group. IV. Genic variation in natural populations of Drosophila willistoni.
We describe allelic variation at 28 gene loci in natural populations of D. willistoni. Seventy samples were studied from localities extending from Mexico and Florida, through Central America, the West Indies, and tropical South America, down to South Brazil. At least several hundred, and often several thousand, genomes were sampled for each locus. We have discovered a great deal of genetic vari...
متن کاملPreliminary characterization of "sex ratio" and rediscovery and reinterpretation of "male sex ratio" in Drosophila affinis.
In D. affinis "sex ratio" (sr), a form of meiotic drive characterized by the production of mostly or only female progeny by certain males, is associated with two different X chromosome sequences, XS-I XL-II and XS-II XL-IV. The behavior of the two sequences differed, depending on the Y chromosome constitution, being either Y(L) or 0. Males with sequence XS-II XL-IV and Y(L) produced progenies w...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Genetics
سال: 1961
ISSN: 1943-2631
DOI: 10.1093/genetics/46.12.1665