Sex ratio wild caught drosophila

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Drosophila melanogaster males express two primary cuticular hydrocarbons male-predominant hydrocarbons. These act as sex pheromones by influencing female receptivity to mating. The relative quantities of these hydrocarbons vary widely among natural populations and can contribute to variation in mating success.

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Sex-ratio drive, which has been documented in several Drosophila species, is induced by X-linked segregation distorters. Contrary to Mendel's law of independent assortment, the sex-ratio chromosome X SR is inherited by more than half the offspring of carrier males, resulting in a female-biased sex ratio. This segregation advantage allows X SR to spread in populations, even if it is not beneficial for the carriers.

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Skip to search form Skip to main content. However, recent work suggests that random distortions in sex ratio due to autosomal inbreeding may be of greater importance. In this study, we investigate the effect of biologically realistic levels of inbreeding on sex ratio and sex specific mortality in Drosophila melanogaster.

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My research deals with questions at the interface of ecology and evolution, with a specific focus on host-parasite interactions, X-chromosome meiotic drive, and the contribution of Wolbachia to reproductive isolation and sex-ratio bias in natural populations of Drosophila. Most of this research focuses on various species of mycophagous Drosophilaas these are both amenable to laboratory study and ideal for ecological work in the field. The endosymbiotic bacteria Wolbachia occur in a wide variety of insects and other arthropods.

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Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated. Show full item record Recommend this item. Spiroplasma infection in Drosophila melanogaster: What is the advantage of killing males?

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The prevalence of de novo coding genes is controversial due to length and coding constraints. Noncoding genes, especially small ones, are freer to evolve de novo by comparison. Here, we study six de novo miRNAs in Drosophilawhich, like most new genes, are testis-specific.

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Drosophila melanogaster is a small, common fly found near unripe and rotted fruit. It has been in use for over a century to study genetics and behavior. He was the first to discover sex-linkage and genetic recombination, which placed the small fly in the forefront of genetic research.

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Data from: Local selection underlies the geographic distribution of sex-ratio drive in Drosophila neotestacea. Content in the Dryad Digital Repository is offered "as is. To the extent possible under law, the authors have waived all copyright and related or neighboring rights to this data. Submit data now.

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