VARIANCE COMPONENT ANALYSIS OF ALLOZYME FREQUENCY DATA FROM EASTERN POPULATIONS OF DROSOPHILA MELANOGASTER
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چکیده
منابع مشابه
Variance component analysis of allozyme frequency data from eastern populations of Drosophila melanogaster.
Gene frequency variation at eight polymorphic allozyme loci in Drosophila melanogaster populations in North Carollina and the east coast of the United States were analyzed utilizing the variance component estimation procedures suggested by Cockerham (1969, 1973). These variance components were used to estimate correlations of genes within small geographic regions. The average (over loci) correl...
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Null and low enzyme activity alleles recovered from two natural populations were analyzed for a number of genetic and biochemical properties. Analysis of 58 mutations at 14 loci showed that all but one allele were genetically viable and fertile, four alleles were associated with chromosome rearrangements, 28 alleles retained some enzyme activity, 13 alleles formed an active heterodimer with act...
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Two large experiments designed to detect allozyme-associated heterosis for growth rate in Drosophila melanogaster were performed. Heterosis associated with allozyme genotypes may be explained either by functional overdominance at the allozyme loci, or closely linked loci; or by genotypic correlations between allozyme loci and loci at which deleterious recessive alleles segregate. Such genotypic...
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We have sampled a London population of Drosophila melanogaster for null alleles at twenty-five allozyme loci. The same loci and biochemical techniques were used as in our previous survey of a North Carolina population (Voelker et al. 1980). This second survey is completely concordant with the first. No nulls were detected among the five X-linked loci. The mean frequency of nulls at the twenty a...
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15 The fruit fly Drosophila melanogaster is a diurnal insect active during the day with 16 consolidated sleep at night. Social interactions between pairs of flies have been shown to 17 affect locomotor activity patterns, but effects on locomotion and sleep patterns have not been 18 assessed for larger populations. Here, we use a commercially available Locomotor Activity 19 Monitor (LAM25H) syst...
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ژورنال
عنوان ژورنال: Genetics
سال: 1978
ISSN: 1943-2631
DOI: 10.1093/genetics/88.1.121