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Updated: Jul 4, 2025

Analysis of Circadian Photoresponses in Drosophila Using Locomotor Activity

Analysis of Circadian Photoresponses in Drosophila Using Locomotor Activity

光污染扰乱了两个蚊子载体在冬季休眠期间的昼夜钟基因表达

Lydia R Fyie¹, Katie M Westby², Megan E Meuti³

¹Department of Entomology, The Ohio State University, 2021 Coffey Rd, Columbus, OH, 43210, USA. fyie.1@osu.edu.

Scientific reports

|January 29, 2024

概括

夜间的人工光 (ALAN) 通过改变成年雌性动物的昼夜钟基因表达来破坏蚊子的隔离. 这可能解释了光污染如何抑制医学上重要的蚊子如Culex pipiens和Aedes albopictus的过冬.

科学领域:

环境科学环境科学
时间生物学时间生物学
昆虫学昆虫学是一门学科.

背景情况:

夜间的人工光 (ALAN) 是一种日益严重的环境干扰,影响昆虫生理和表观.
像Culex pipiens和Aedes albopictus这样的蚊子依赖于光:黑暗周期进行隔离,这是一个过冬的休眠状态.
众所周知,ALAN可以抑制隔膜,但潜在的机制尚不清楚.

研究的目的:

为了研究ALAN对两个蚊子物种昼夜钟基因表达的影响.
为了确定ALAN是否会干扰隔离开始的昼夜调节.

主要方法:

这些蚊子 (Cx. 皮皮恩斯和艾埃. (Albopictus) 在短昼条件下养,模拟隔离期诱导.
对ALAN的暴露被应用,并分析了核心昼夜钟基因的每日表达.
检查了成年女性的时钟基因表达,对于Ae. 在成熟的卵细胞中. albopictus.

主要成果:

艾伦暴露改变了两个物种成年雌性蚊子中几个核心时钟基因的丰富性.
大多数时钟基因尽管暴露在ALAN中,但仍保持了它们的节奏性.
艾伦对AE的成熟卵细胞中的时钟基因丰富度的影响很小. 一个叫阿尔博皮克托斯的.

结论:

在Cx中,ALAN可能会抑制隔离开始. 皮皮恩斯和艾埃. 通过干扰昼夜时钟来控制白.
昼夜时钟是ALAN破坏蚊子过冬策略的潜在目标.
需要进一步的研究,以充分阐明昼夜干扰在ALAN诱导的隔离阻断中的作用.

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