Effect of dose-rate on the frequency of X-linked lethal mutation in the nematode Panagrellus redivivus.
A total X-ray dose of 50 Gy was applied to the nematode Panagrellus redivivus using dose-rates ranging from 0.23 Gy/min to 10.49 Gy/min, and the frequency of lethal X-chromosomes was determined. This frequency ranged from approximately 1.6% at the lower dose-rate to 4.3% at the highest dose-rate, indicating a dose-rate dependency of mutation frequency in the spermatogonia and oogonia of this organism.
D000818:Animals; D003433:Crosses, Genetic; D004307:Dose-Response Relationship, Radiation; D005260:Female; D005787:Gene Frequency; D005804:Genes, Lethal / Q000528:radiation effects; D008297:Male; D009154:Mutation; D009348:Nematoda / Q000235:genetics / Q000528:radiation effects*; D014960:X Chromosome / Q000528:radiation effects*; D014965:X-Rays