THE GENETIC VARIANCE FOR VIABILITY AND ITS COMPONENTS IN A LOCAL POPULATION OF DROSOPHILA MELANOGASTER
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چکیده
منابع مشابه
Mutator factors and genetic variance components of viability in Drosophila melanogaster.
In the process of testing whether or not the independent-locus selection model holds true with previously estimated genetic parameters (cf. MUKAI and MARUYAMA 1971) in D. melanogaster collected near Raleigh, North Carolina, we found an abnormal phenomenon: an unusually large increase in dominance variance for viability in comparison with additive variance with the accumulation of mutations on 1...
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Larval Viability and Genetic Load in DROSOPHILA MELANOGASTER.
EXPERIMENTS on the effects of concealed genetic load in Drosophila on the viability of its homozygous or heterozygous carriers have been made by many investigators in several species (DOBZHANSKY, HOLZ and SPASSKY 1942; IVES 1945; DAWOOD 1961 and other workers). In these experiments, survival from egg to the adult stage was taken as a measure of the viability. In practice, however, the survival ...
متن کاملThe Genetic Structure of Natural Populations of DROSOPHILA MELANOGASTER. Xvi. Excess of Additive Genetic Variance of Viability.
About 500 second and 500 third chromosomes were extracted, using the marked inversion technique, from the Orlando-Lake Placid, Florida, population. From the experiments using these chromosomes, the following findings were obtained: (1) The frequencies of lethal-carrying chromosomes were 0.37 in the second and 0.55 in the third chromosomes. (2) The size of the population was estimated to be effe...
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ژورنال
عنوان ژورنال: Genetics
سال: 1974
ISSN: 1943-2631
DOI: 10.1093/genetics/78.4.1195