Mutation Rates at Low Dose Level in Drosophila melanogaster
نویسندگان
چکیده
منابع مشابه
Sterility, chromosome breakage, x-ray induced mutation rates and detected mutation frequencies in Drosophila melanogaster.
AMONG the enduring problems of radiation genetics is the quantitative evaluation of mutational damage elicited in germ cells that have been exposed to a given dose of radiation. The significant question at issue is what proportion of all irradiated germ cells actually suffer an induced mutation, i.e., what is the mutation rate? This is the question that must be accurately answered before the co...
متن کاملAdaptation of Drosophila melanogaster populations to high mutation pressure: evolutionary adjustment of mutation rates.
Evolutionary aspects of high mutation pressure were studied in laboratory populations of Drosophila melanogaster that have irradiation histories up to 600 generations. Dose-response regressions for the x-ray induction of various types of mutation were obtained from six of these populations. The sensitivity of these irradiated populations relative to an unirradiated control population was charac...
متن کاملThe Baroid Mutation in DROSOPHILA MELANOGASTER.
TABLE OF CONTENTS PAGE INTRODUCTION. .................................................................. Origin of baroid.. .................................... The change from dominance to recessiveness. ....................................... Description of baroid. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Allelomorphism tests. ..... . . . . . . . . . . . . . . . . . ...
متن کاملA study of spontaneous mutation rates at ten loci detectable by starch gel electrophoresis in Drosophila melanogaster.
Spontaneous mutation rates at ten allozyme loci on chromosomes II and III of Drosophila melanogaster were studied. Over the three and a half years study, one alpha-GPD mutation and two different IDH mutations were obtained. The alpha-GPD mutation was inherited in the Mendelian fashion, as expected. The two IDH mutations were peculiar in that the band of new types appeared only in females. In ma...
متن کاملSpontaneous Mutation Rates for Sex-Linked Lethals in the Two Sexes of DROSOPHILA MELANOGASTER.
HE spontaneous mutation rates for autosomal lethals (both second and third chromosomes) in both male and female Drosophila melanogaster were reported in an earlier study (WALLACE 1968). Nearly 12.000 gametes obtained from lethal-free individuals were tested; the proportion of lethal-bearing ones was approximately 0.006 for either autosome and for either sex. The finding that the mutation rates ...
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: Journal of Radiation Research
سال: 1963
ISSN: 0449-3060,1349-9157
DOI: 10.1269/jrr.4.105