饮食差异对新热带果蝇(双翅目;果蝇科)生活史特征和能量储存的影响

IF 1.4 3区 农林科学 Q2 ENTOMOLOGY Neotropical Entomology Pub Date : 2024-04-30 DOI:10.1007/s13744-024-01147-4
Camila Heloise dos Santos, Emanuele Cristina Gustani, Luciana Paes de Barros Machado, Rogério Pincela Mateus
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引用次数: 0

摘要

在自然选择的作用下,生物应对营养压力的能力可能是一种可塑性特征,会影响包括生活史和能量储存在内的若干特征。果蝇属(双翅目;果蝇科)在自然资源开发方面具有很高的可变性。然而,有关这一主题的大多数研究都是以黑腹果蝇(D. melanogaster Meigen, 1830)为模式种,而对新热带地区的果蝇知之甚少。在这里,我们评估了三种不同碳水化合物与蛋白质比例的食物对三种新热带果蝇的生活史(存活率和发育时间)和代谢池(甘油三酯、糖原和总可溶性蛋白质含量)的影响:D. maculifrons Duda,1927 年;D. ornatifrons Duda,1927 年(均属 Drosophila Sturtevant,1939 年),以及 D. willistoni Sturtevant,1916 年(属 Sophophora Sturtevant,1939 年)。我们的研究结果表明,只有D. willistoni在所有食物中都能存活,D. maculifrons在含糖食物中不能存活,而D. ornatifrons在含糖食物中几乎不能存活。含糖食物延长了 D. willistoni 和 D. ornatifrons 的发育时间,并增加了 D. willistoni 的糖原含量。因此,D. maculifrons 和 D. ornatifrons 的生存能力似乎取决于日粮中一定量的蛋白质和/或低浓度的碳水化合物。在D. ornatifrons中发现,日粮对甘油三酯和蛋白质池的影响更为明显,这可能与成虫对粪便和腐肉诱饵坑栅的吸引力有关,因为在自然界中测试过粪便和腐肉诱饵坑栅是食物资源。我们的研究结果表明,物种的进化历史和对自然宏量营养素资源的不同适应性对于确定物种在面对食物变化时的反应幅度非常重要。
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Dietary Variation Effect on Life History Traits and Energy Storage in Neotropical Species of Drosophila (Diptera; Drosophilidae)

The ability of an organism to respond to nutritional stress can be a plastic character under the action of natural selection, affecting several characteristics, including life history and energy storage. The genus Drosophila (Diptera; Drosophilidae) presents high variability regarding natural resource exploration. However, most works on this theme have studied the model species D. melanogaster Meigen, 1830 and little is known about Neotropical drosophilids. Here we evaluate the effects of three diets, with different carbohydrate-to-protein ratios, on life history (viability and development time) and metabolic pools (triglycerides, glycogen, and total soluble protein contents) of three Neotropical species of Drosophila: D. maculifrons Duda, 1927; D. ornatifrons Duda, 1927, both of the subgenus Drosophila Sturtevant, 1939, and D. willistoni Sturtevant, 1916 of the subgenus Sophophora Sturtevant, 1939. Our results showed that only D. willistoni was viable on all diets, D. maculifrons was not viable on the sugary diet, while D. ornatifrons was barely viable on this diet. The sugary diet increased the development time of D. willistoni and D. ornatifrons, and D. willistoni glycogen content. Thus, the viability of D. maculifrons and D. ornatifrons seems to depend on a certain amount of protein and/or a low concentration of carbohydrate in the diet. A more evident effect of the diets on triglyceride and protein pools was detected in D. ornatifrons, which could be related to the adult attraction to dung and carrion baited pitfall as food resource tested in nature. Our results demonstrated that the evolutionary history and differential adaptations to natural macronutrient resources are important to define the amplitude of response that a species can present when faced with dietary variation.

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来源期刊
Neotropical Entomology
Neotropical Entomology 生物-昆虫学
CiteScore
3.30
自引率
5.60%
发文量
69
审稿时长
6-12 weeks
期刊介绍: Neotropical Entomology is a bimonthly journal, edited by the Sociedade Entomológica do Brasil (Entomological Society of Brazil) that publishes original articles produced by Brazilian and international experts in several subspecialties of entomology. These include bionomics, systematics, morphology, physiology, behavior, ecology, biological control, crop protection and acarology.
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