hybrid dysgenesis
The P-M Hybrid Dysgenesis Cline in Eastern Australian Drosophila melanogaster: Discrete P, Q and M Regions Are Nearly Contiguous
... A latitudinal cline in P-M gonadal dysgenesis potential in Australian Drosophila melanogaster populations.. Hybrid dysgenesis determinants.[r] ...
9
Hybrid dysgenesis in Drosophila virilis results in clusters of mitotic recombination and loss-of-heterozygosity but leaves meiotic recombination unaltered
... by hybrid dysgenesis may occur through different ...brid dysgenesis [86]. The incomplete penetrance of hybrid dysgenesis in ...by dysgenesis does not modulate meiotic ...during ...
18
Association of zygotic piRNAs derived from paternal P elements with hybrid dysgenesis in Drosophila melanogaster
... P elements are DNA transposons that propagate in the D. melanogaster genome and include both structurally complete and incomplete variants. Autonomous 2907-bp complete elements encode an 87-kDa transposase, for which ...
16
Hybrid dysgenesis-induced quantitative variation on the X chromosome of Drosophila melanogaster.
... P elements on hybrid dysgenesis-induced polygenic mutation rates, we have constructed X chromosome lines from crosses of inbred P and M strains that allow us to compare [r] ...
10
Whole genome sequencing in Drosophila virilis identifies Polyphemus, a recently activated Tc1-like transposon with a possible role in hybrid dysgenesis
... Background: Hybrid dysgenic syndromes in Drosophila have been critical for characterizing host mechanisms of transposable element (TE) ...of hybrid dysgenesis is germline TE mobilization that occurs ...
9
Repression of P element-mediated hybrid dysgenesis in Drosophila melanogaster.
... Potential for inducing hybrid dysgenesis: T o pro- vide background information for the study of repres- sion potential, each of the inbred lines derived from the M' strai[r] ...
14
Repression of Hybrid Dysgenesis in Drosophila melanogaster by Combinations of Telomeric P-Element Reporters and Naturally Occurring P Elements
... derived second chromosome called “Texas 007” ( Pe ´ riquet meric position would allow a rapid scan of the entire and Anxolabe ´ he `re 1982); it shows 20–25 P labels including genome and the silencer locus could ...
10
Evolution of hybrid dysgenesis potential following P element contamination in Drosophila melanogaster.
... Evolution of Hybrid Dysgenesis Potential Following P Element Contamination in Drosophila melanogaster.. Margaret G.[r] ...
14
Repression of hybrid dysgenesis in Drosophila melanogaster by individual naturally occurring P elements.
... Individual P elements that were genetically isolated from wild-type strains were tested for their abilities to repress two aspects of hybrid dysgenesis: gonadal dysgenesis[r] ...
18
HYBRID DYSGENESIS IN DROSOPHILA MELANOGASTER: FACTORS AFFECTING CHROMOSOMAL CONTAMINATION IN THE P-M SYSTEM
... Although the presence of the recipient autosomes, Cy and Ubx, did not consistently increase the frequency of contamination over that produced by contaminated X ch[r] ...
25
The P-M and the 23.5 MRF (hobo) systems of hybrid dysgenesis in Drosophila melanogaster are independent of each other.
... Whether this slightly weaker P cytotype is significant is at present not clear, but it could be perhaps correlated with the very low copy number of P elements in the[r] ...
9
Repression of Hybrid Dysgenesis in Drosophila melanogaster by Heat-Shock-Inducible Sense and Antisense P-Element Constructs
... Among the 13 different heat-shock-inducible sense constructs that were tested, those containing the KP and DP elements were strong repressors of pupal lethality, gonadal dys[r] ...
16
Structure and expression of hybrid dysgenesis-induced alleles of the ovarian tumor (otu) gene in Drosophila melanogaster.
... Sequence analysis of the otuP alleles revealed that the P element insertion sites are clustered within a region upstream of the major transcription start sites and down[r] ...
11
Models of repression of transposition in P-M hybrid dysgenesis by P cytotype and by zygotically encoded repressor proteins.
... It can be seen that in the situation in which P cytotype cannot evolve and in which there can be no nonautonomous elements pro- duced, the copy number of the autonomous elem[r] ...
16
The genetic structure of natural populations of Drosophila melanogaster. XXIV. Effects of hybrid dysgenesis on the components of genetic variance of variability.
... Estimation of the average degree of dominance for mildly deleterious mutations: One hundred and sixty-four crosses for the Native background and 157 crosses for the Forei[r] ...
8
The unusual spectrum of mutations induced by hybrid dysgenesis at the Triplo-lethal locus of Drosophila melanogaster.
... DENELL, 1979 A mutational analysis of the triplo-lethal region of Drosophila melanogaster. COULD-SOMERO,[r] ...
7
CHROMOSOMAL EFFECTS ON MUTABILITY IN THE P-M SYSTEM OF HYBRID DYSGENESIS IN DROSOPHILA MELANOGASTER
... measured the effects of the major chromosomes from these two strains on two aspects of dysgenesis; one was the rate of occurrence of recessive X-linked lethal mutations,[r] ...
16
Hybrid dysgenesis in Drosophila simulans lines transformed with autonomous P elements.
... elements (cross A). melanogaster, the standard tests to measure P element regulation @e., crosses of the A* type) employ males from reference strains having known hlgh[r] ...
11
GERMLINE HYPERMUTABILITY IN DROSOPHILA AND ITS RELATION TO HYBRID DYSGENESIS AND CYTOTYPE
... The inheritance of cytotype as defined by snw hypermutability: The previous results suggested that the control of snw hypermutability is closely related to the classification o[r] ...
23
The Influence of Nonautonomous P Elements on Hybrid Dysgenesis in Drosophila melanogaster
... T o estimate the frequency of gonadal dysgenesis (GD sterility) among hybrid females, the cultures that produced these females were raised at 29". T h e flies that hatch[r] ...
15