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首页> 外文期刊>Journal of genetics >Is preraating isolation in Drosophila overestimated due to uncontrolled factors?
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Is preraating isolation in Drosophila overestimated due to uncontrolled factors?

机译：由于不受控制的因素，果蝇在果蝇中的垂直分离？

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摘要

Sexual isolation in Drosophila is typically measured by multiple-choice mating tests. While many environmental variables during such tests are controlled by the researcher, there are some factors that are usually uncontrolled. We demonstrate, using Drosophila melanogasler and D. pseudoobscura flies, that the temperature of rearing, preadult density, and level of consanguinity, can all produce differences in mating propensity between genetically equivalent flies. These differences in mating propensity, in turn, can give rise to statistically significant results in multiple-choice mating tests, leading to positive isolation values and the artifactual inference of sexual isolation between populations. This fact agrees with a nonrandom excess of significant positive tests found in a review of the literature of Drosophila in-traspecific mating choice. An overestimate of true cases of sexual isolation in Drosophila in the literature can, therefore, not be ruled out.
机译：果蝇中的性分离通常通过多项选择配合测试来测量。 虽然这些测试期间的许多环境变量由研究人员控制，但是通常有一些因素通常是不受控制的。 我们展示了使用果蝇黑素加拉斯勒和D.伪佛罗里达州的苍蝇，即饲养的温度，血密密度和血缘程度，都可以产生遗传等效苍蝇之间的交配倾向的差异。 这些交配倾向的这些差异反过来可以引起多项选择交配测试的统计上显着的结果，导致阳性隔离值和种群之间性孤立的艺术推理。 这一事实同意在果蝇的文献中发现的果蝇内交配选择的文献中发现了非严重的阳性测试。 因此，在文献中的果蝇中性孤立的真实病例尤其可以排除。

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