Genetic changeover in Drosophila populations.
نویسندگان
چکیده
منابع مشابه
Genetic changeover in Drosophila populations.
Three populations of Drosophila melanogaster that were daughter populations of two others with histories of high, continuous radiation exposure [population 5 (irradiated, small population size) gave rise to populations 17 (small) and 18 (large); population 6 (irradiated, large population size) gave rise to population 19 (large)] were maintained for 1 year with no radiation exposure. The frequen...
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HE investigation reported in the present paper is of the effects of genetic T drift in three experimental populations of Drosophila melanogastar, two of which received treatments with gamma rays. Although there has been considerable theoretical discussion of genetic drift, few experimental studies of this phenomenon have been carried out. This paucity of experimental verification exists in spit...
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G E N E T I C changes induced by ionizing radiations have been studied much more at the level of individuals than at that of populations. The information available on the frequencies of different types of changes induced by various kinds of radiation exposure is quite extensive, relative to our knowledge of the destinies of these changes in the gene pool of the populations in which they OCcur. ...
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ATURAL populations of every species of Drosophila studied in this respect N carry genetic loads consisting of deleterious variants, usually recessive and concealed in heterozygous condition. Numerous studies have been made on the viability components of the genetic loads, i.e., on the variants that reduce the viability of their carriers. The components that reduce the fertility have received re...
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ژورنال
عنوان ژورنال: Proceedings of the National Academy of Sciences
سال: 1986
ISSN: 0027-8424,1091-6490
DOI: 10.1073/pnas.83.5.1374