Gene frequencies in natural and laboratory populations of Drosophila nasuta
نویسندگان
چکیده
منابع مشابه
Population Genetics of DROSOPHILA NASUTA NASUTA, DROSOPHILA NASUTA ALBOMICANA and Their Hybrids. I. Karyotypic Mosaicism in the Hybrid Populations.
D. n. nasuta and D. n. albomicana constitute a pair of chromosomal races with 2n=8 and 2n=6, respectively. The F(1) of these has 2n=7 and it is fertile. There exists a state of karyotypic mosaicism as evidenced by the presence of 26 types of chromosome combinations in F(2), F(3) and F(10) populations. In the midst of this karyotypic noise, the karyotype similar to that of F(1) reached 51% of th...
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Genetic variation at 43 loci has been studied in six different populations of Drosophila persimilis by electrophoresis of enzymes and proteins. In D. persimilis the mean proportion of polymorphic loci is 0.362, the mean proportion of heterozygous loci per individual is 0.100 and the average number of alleles per locus is 1.651. In all populations, the loci coding for the hydrolytic and other no...
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Yuh-Chyn Yu, Fei-Jann Lin and Hwei-yu Chang (1997) Karyotype polymorphism in hybrid populations of Drosophila nasuta and D. albomicans. Zoological Studies 36(3): 251-259. Drosophila albomicans (2n = 6) and D. nasuta (2n = 8) are 2 sibling species with indistinguishable morphology; but distinct karyotypes. The former is distributed from Japan through Taiwan to Thailand, and the latter from India...
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The evolution of Drosophila subobscura mitochondrial DNA has been studied in experimental populations, founded with flies from a natural population from Esporles (Majorca, Balearic Islands, Spain). This population, like other European ones, is characterized by the presence of two very common (>96%) mitochondrial haplotypes (called I and II) and rare and endemic haplotypes that appear at very lo...
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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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ژورنال
عنوان ژورنال: Hereditas
سال: 2008
ISSN: 0018-0661
DOI: 10.1111/j.1601-5223.1989.tb00410.x