Ribosomal DNA content and bobbed phenotype in Drosophila hydei
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چکیده
منابع مشابه
Regulation of ribosomal RNA and 5s RNA synthesis in Drosophila melanogaster. I. Bobbed mutants.
Analysis of the rates and amounts of rRNA and 5s RNA synthesized in Drosophila melanogaster bobbed mutants was done by using acrylamide-gel electrophoresis. The results show that the amounts of rRNA synthesized are constant, although the rates of rRNA synthesis in bb's are reduced to 30% of the wild-type level. The rates of synthesis of 5s RNA were constant. The rate of synthesis of the two kin...
متن کاملInfluence of the RNA content on oogenesis in the bobbed mutants of Drosophila melanogaster.
Developing egg chambers of Drosophila melanogaster (wild-type and bobbed mutants) have been examined for their nucleic acid content by cytophotometric methods. No differences were observed in the total DNA and RNA content of the egg chambers at all stages between the bobbed mutants and the wild type. It is shown that the process of oogenesis in bobbed females is prolonged, and that this prolong...
متن کاملFive Autosomal Mutants in DROSOPHILA HYDEI.
PAGE INTRODUCTION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .................... 44 Red ( r ) , a recessive eye col . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44 Orange (o), a recessive eye . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45 Triang...
متن کاملSelective replication of ribosomal DNA repeats after loss of the abnormal oocyte phenotype in Drosophila melanogaster
Drosophila melanogaster females homozygous for the abnormal oocyte mutation produce a large excess of female offspring when crossed with XY/0 males. After several genera tions in abo homozygous stock, this maternal effect is no longer observed. The disappearance of the abo phenotype is coupled with an increase in the amount of DNA coding for rRNA (rDNA). We have used restriction endonuclease a...
متن کاملSelective replication of ribosomal DNA repeats after loss of the abnormal oocyte phenotype in Drosophila melanogaster
Drosophila melanogaster females homozygous for the abnormal oocyte mutation produce a large excess of female offspring when crossed with XY/0 males. After several genera tions in abo homozygous stock, this maternal effect is no longer observed. The disappearance of the abo phenotype is coupled with an increase in the amount of DNA coding for rRNA (rDNA). We have used restriction endonuclease a...
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ژورنال
عنوان ژورنال: Heredity
سال: 1976
ISSN: 0018-067X,1365-2540
DOI: 10.1038/hdy.1976.99