Maternal inheritance of P cytotype in Drosophila melanogaster: a “pre-P cytotype” is strictly extra-chromosomally transmitted
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چکیده
منابع مشابه
The P cytotype in Drosophila melanogaster: a maternally transmitted regulatory state of the germ line associated with telomeric P elements.
The incomplete P elements TP5 and TP6 are inserted in the TAS repeats near the left telomere of the Drosophila melanogaster X chromosome. These telomeric P elements repress P-induced gonadal dysgenesis and germ-line hypermutability in both sexes. However, their capacity to repress hypermutability is lost when they are transmitted patroclinously in a cross. TP5 and TP6 do not repress P-element a...
متن کاملCytotype control of Drosophila melanogaster P element transposition: genomic position determines maternal repression.
P element transposition in Drosophila is controlled by the cytotype regulatory state: in P cytotype, transposition is repressed, whereas in M cytotype, transposition can occur. P cytotype is determined by a combination of maternally inherited factors and chromosomal P elements in the zygote. Transformant strains containing single elements that encoded the 66-kD P element protein zygotically rep...
متن کاملTelomeric P elements associated with cytotype regulation of the P transposon family in Drosophila melanogaster.
P elements inserted at the left end of the Drosophila X chromosome were isolated genetically from wild-type P strains. Stocks carrying these elements were tested for repression of P-strain-induced gonadal dysgenesis in females and for repression of transposase-catalyzed P-element excision in males and females. Both traits were repressed by stocks carrying either complete or incomplete P element...
متن کاملCytotype Regulation by Telomeric P Elements in Drosophila melanogaster : Interactions With P Elements From M9 Strains
P strains of Drosophila are distinguished from M strains by having P elements in their genomes and also by having the P cytotype, a maternally inherited condition that strongly represses P-element-induced hybrid dysgenesis. The P cytotype is associated with P elements inserted near the left telomere of the X chromosome. Repression by the telomeric P elements TP5 and TP6 is significantly enhance...
متن کاملCytotype regulation by telomeric P elements in Drosophila melanogaster: interactions with P elements from M' strains.
P strains of Drosophila are distinguished from M strains by having P elements in their genomes and also by having the P cytotype, a maternally inherited condition that strongly represses P-element-induced hybrid dysgenesis. The P cytotype is associated with P elements inserted near the left telomere of the X chromosome. Repression by the telomeric P elements TP5 and TP6 is significantly enhance...
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ژورنال
عنوان ژورنال: Molecular and General Genetics MGG
سال: 1993
ISSN: 0026-8925,1432-1874
DOI: 10.1007/bf00280208