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Author Spotlight: Examining Volatile Sex Pheromone Influence on Male C. elegans Behavior
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Pheromone-Binding Protein 1 Performs a Dual Function for Intra- and Intersexual Signaling in a Moth
Yidi Zhan1,2, Jiahui Zhang2, Mengxian Xu2
1State Key Laboratory of Wheat Improvement, Shandong Agricultural University, No. 61, Daizong Road, Taian 271018, China.
International Journal of Molecular Sciences
|December 17, 2024
Summary
Pheromone-binding protein 1 (PBP1) in the moth Agriphila aeneociliella recognizes both male and female pheromones. This dual function is crucial for moth communication and reproductive isolation.
Area of Science:
- Chemical Ecology
- Molecular Biology
- Entomology
Background:
- Moths rely on pheromones for communication, but roles in both intra- and intersexual recognition are understudied.
- Pheromone-binding proteins (PBPs) are key for male moths detecting female pheromones.
Purpose of the Study:
- Investigate the dual role of PBP1 from Agriphila aeneociliella (AaenPBP1) in intra- and intersexual pheromone recognition.
- Identify and analyze odorant-binding protein (OBP) gene expression in A. aeneociliella.
Main Methods:
- Transcriptional analysis of 20 OBP family genes in A. aeneociliella.
- Competitive fluorescence binding assays and molecular docking to assess AaenPBP1 binding affinities.
- Analysis of pheromone components and PBPs across Lepidoptera.
Main Results:
- AaenPBP1 showed high expression in the antennae.
- AaenPBP1 strongly bound to the female sex pheromone (Z)-9-Hexadecenyl acetate and the male pheromone 1-Nonanal.
- Hydrogen bonds between Ser56 and ligands were identified.
Conclusions:
- AaenPBP1 possesses a dual function in recognizing both male and female pheromones.
- Coevolved interactions between moth pheromones and PBPs are vital for reproductive isolation.
- Findings support PBP significance in invertebrates and pest management strategies.
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