同种和异种卵及幼虫如何驱动果蝇的产卵偏好

IF 2.8 4区 心理学 Q1 BEHAVIORAL SCIENCES Chemical Senses Pub Date : 2024-04-12 DOI:10.1093/chemse/bjae012
Rolando D Moreira-Soto, Mohammed A Khallaf, Bill S Hansson, Markus Knaden
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引用次数: 0

摘要

产卵地点对雌蝇来说是一个至关重要的决定,因为它影响着后代的成活率。雌蝇更喜欢在已经被幼虫占据和食用的食物上产卵,这有利于社会性喂养,但也可能导致物种间的有害互动。雌蝇是否能调节其对不同物种相关线索的吸引力尚不清楚。在这里,我们分析了16种果蝇卵和幼虫的化学特征,并测试了果蝇是否会被幼虫处理过的食物或含有6种不同果蝇卵的食物所吸引。化学分析显示,不同物种的幼虫特征有很大的重叠,而卵的特征则表现出明显的物种特异性。相应地,雌蝇更喜欢在它们检测到任何物种的幼虫线索的地方产卵,而我们发现只有某些物种的卵有明显的产卵偏好,而其他物种的卵则没有。我们的研究结果表明,存在于特定基质中的幼虫和卵线索都能驱动雌蝇的产卵偏好。
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How conspecific and allospecific eggs and larvae drive oviposition preference in Drosophila
Where to lay the eggs is a crucial decision for females as it influences the success of their offspring. Female flies prefer to lay eggs on food already occupied and consumed by larvae, which facilitates social feeding, but potentially could also lead to detrimental interactions between species. Whether females can modulate their attraction to cues associated with different species is unknown. Here, we analyzed the chemical profiles of eggs and larvae of 16 Drosophila species, and tested whether Drosophila flies would be attracted to larvae-treated food or food with eggs from 6 different Drosophila species. The chemical analyses revealed that larval profiles from different species are strongly overlapping, while egg profiles exhibit significant species specificity. Correspondingly, female flies preferred to lay eggs where they detected whatever species’ larval cues, while we found a significant oviposition preference only for eggs of some species but not others. Our findings suggest that both larval and egg cues present at a given substrate can drive oviposition preference in female flies.
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来源期刊
Chemical Senses
Chemical Senses 医学-行为科学
CiteScore
8.60
自引率
2.90%
发文量
25
审稿时长
1 months
期刊介绍: Chemical Senses publishes original research and review papers on all aspects of chemoreception in both humans and animals. An important part of the journal''s coverage is devoted to techniques and the development and application of new methods for investigating chemoreception and chemosensory structures.
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