首页> 外文期刊>Proceedings of the National Academy of Sciences of the United States of America >Misexpression of the white (w) gene triggers male-male courtship in Drosophila.
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Misexpression of the white (w) gene triggers male-male courtship in Drosophila.

机译:白色(w)基因的错误表达会引发果蝇中的男女求偶。

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We report here that the general ectopic expression of a tryptophan/guanine transmembrane transporter gene, white (w), induces male-male courtship in Drosophila. Activation of a hsp-70/miniwhite (mini-w) transgene in mature males results in a marked change in their sexual behavior such that they begin to vigorously court other mature males. In transformant populations containing equal numbers of both sexes, most males participate, thus forming male-male courtship chains, circles, and lariats. Mutations that ablate the w transgene function also abolish this inducible behavior. Female sexual behavior does not appear to be altered by ectopic w expression. By contrast, when exposed to an active homosexual courtship environment, non-transformant males alter their behavior and actively participate in the male-male chaining. These findings demonstrate that, in Drosophila, both genetic and environmental factors play a role in male sexual behavior.
机译:我们在这里报告,色氨酸/鸟嘌呤跨膜转运蛋白基因,白色(w),一般异位表达诱导果蝇中的男性-男性求偶。 hsp-70 / miniwhite(mini-w)转基因的激活会导致成熟男性的性行为发生明显变化,从而开始强烈地向其他成熟男性求婚。在包含相等数目的性别的转化人群中,大多数男性都参与其中,从而形成了男性-男性求爱链条,圈子和套索。消除w转基因功能的突变也消除了这种可诱导的行为。女性性行为似乎不会因异位w表达而改变。相比之下,当处于活跃的同性恋求爱环境中时,未转化的男性会改变其行为,并积极参与男性与男性的关系。这些发现表明,在果蝇中,遗传因素和环境因素均在男性性行为中起作用。

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