Pre-copulatory reproductive behaviours are preserved in Drosophila melanogaster infected with bacteria.

Pre-copulatory reproductive behaviours are preserved in Drosophila melanogaster infected with bacteria.
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DOI:
10.1098/rspb.2022.0492
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发表时间:
2022-05-11
影响因子:
4.7
通讯作者:
Rezaval, Carolina
Rezaval, Carolina
中科院分区:
生物学1区
文献类型:
--
作者:
Rose, Saloni;Beckwith, Esteban J.;Burmester, Charlotte;May, Robin C.;Dionne, Marc S.;Rezaval, Carolina

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感染后免疫系统的激活对个体产生了巨大的能量需求,可能会减少其他重要过程(如繁殖)的可用资源。决定防御和生殖特征之间权衡的因素仍然知之甚少。在这里,我们利用果蝇的实验温顺性系统地评估免疫系统激活对交配前生殖行为的影响。与预期相反,我们发现经历免疫激活的雄性果蝇继续表现出高水平的求偶和交配成功率。同样,免疫力受到挑战的雌性果蝇仍然具有高度的性接受能力。通过结合行为模式,一个不同的面板的病原体和遗传策略,以诱导苍蝇免疫系统,我们表明,交配前的生殖行为被保存在受感染的苍蝇,尽管感染的显着的代谢成本。
The activation of the immune system upon infection exerts a huge energetic demand on an individual, likely decreasing available resources for other vital processes, like reproduction. The factors that determine the trade-off between defensive and reproductive traits remain poorly understood. Here, we exploit the experimental tractability of the fruit fly Drosophila melanogaster to systematically assess the impact of immune system activation on pre-copulatory reproductive behaviour. Contrary to expectations, we found that male flies undergoing an immune activation continue to display high levels of courtship and mating success. Similarly, immune-challenged female flies remain highly sexually receptive. By combining behavioural paradigms, a diverse panel of pathogens and genetic strategies to induce the fly immune system, we show that pre-copulatory reproductive behaviours are preserved in infected flies, despite the significant metabolic cost of infection.
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发表时间: 1994-11-29
影响因子: 6.3
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