MATING SPEED CONTROL BY GENE ARRANGEMENT CARRIERS IN DROSOPHILA PERSIMILIS
نویسندگان
چکیده
منابع مشابه
Selection for Rate of Development and Gene Arrangement Frequencies in Drosophila Persimilis.
INCE natural selection acts on phenotypes, it must “aim” at the genetic material via fitness traits, traits affecting number, quality, or fertility of progeny; thus genetic material is altered to bring about changes in developmental, physiological, and behavioral pathways leading to maximization of fitness. If we are to understand the adaptive nature of the genetic potential in a population, it...
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ITH a positive correlation between mating speed of homokaryotypes and the Wf requency of gene arrangements from the Mather, California, population of Drosophila pseudoobscura, it became clear that gene complexes included in those arrangements must play a prominent role in courtship behavior, a role essential to fitness in natural populations (SPIES and LANGER 1964a). In its sibling species, D. ...
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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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Release-recapture experiments using Drosophila pseudoobscura and D. persimilis strains of different karyotypes were performed in a heterogeneous environment. The heterogeneity was due to both spatial variation and the species of yeast used to attract the released flies. No karyotypic-specific habitat preferences were detected. However, in all releases, different strains did behave differently w...
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Speciation is the evolutionary process in which new barriers to gene exchange are created. These barriers may be physical, leading to spatial separation of subpopulations and resulting in allopatric speciation, or they may be temporal, giving rise to allochronic speciation, and may include the time of day or the time of year when mating takes place. Drosophila melanogaster and D. pseudoobscura ...
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ژورنال
عنوان ژورنال: Evolution
سال: 1964
ISSN: 0014-3820
DOI: 10.1111/j.1558-5646.1964.tb01620.x