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PBP1 plays key roles in sex pheromone reception of the fall armyworm

文献类型： 外文期刊

作者： Zhong, Yongzhi 1 ; Xie, Minghui 1 ; Di, Zhongjuan 2 ; Li, Fengqi 2 ; Chen, Jiaqi 3 ; Kong, Xiangxin 3 ; Lin, Lulu 1 ; Su, Weihua 1 ; Xu, Lina 1 ; Zhang, Feng 4 ; Tang, Rui 3 ; Chen, Haoliang 1 ;

作者机构： 1.Anhui Acad Agr Sci, Inst Plant Protect & Agroprod Safety, Anhui CABI Joint Lab Agr Pest Control, Hefei 230031, Anhui, Peoples R China

2.Beijing Acad Agr & Forestry Sci, Inst Plant & Environm Protect, Beijing 100097, Peoples R China

3.Guangdong Acad Sci, Inst Zool, Guangdong Key Lab Anim Conservat & Resource Utiliz, Guangdong Publ Lab Wild Anim Conservat & Utilizat, Guangzhou 510260, Peoples R China

4.Chinese Acad Agr Sci, Inst Plant Protect, CABI Joint Lab Biosafety, MARA, Beijing 100193, Peoples R China

5.CABI East & South East Asia, Beijing 100081, Peoples R China

关键词： Spodoptera frugiperda; Sex pheromone; Pheromone binding protein

期刊名称：INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES （ 影响因子：8.025； 五年影响因子：7.626 ）

ISSN： 0141-8130

年卷期： 2022 年 214 卷

页码：

收录情况： SCI

摘要： Spodoptera frugiperda among the China population employs a four-component sex pheromone blend to accelerate male-female allocation and mating behavior. The underlying molecular mechanism has been incompletely elucidated. In the current study, we showed that differences existed between genders toward the four sex pheromone components, including Z9-14:AC, Z7-12:AC, Z9-12:AC, and Z11-16:AC, in terms of electrophysiological responses and behavioral valences. Male adults were significantly more sensitive to all tested compounds than female adults. Furthermore, ecological outputs may be related to four pheromone-binding proteins, namely, SfruPBP1, SfruPBP2, SfruPBP3, and SfruPBP4. They formed four distinct clades within the lepidopteran phylogeny, and male adults expressed significantly higher levels of SfruPBP1 and SfruPBP2 than female adults. We observed the highest binding affinities of SfruPBP1 toward all four sex pheromone components. SfruPBP4 had moderate binding affinities for Z7-12:AC, Z11-16:AC, and Z9-12:AC, while SfruPBP2 showed binding toward Z9-14:AC. This observation suggests that SfruPBP1 plays a key role in sex pheromone discrimination and drives sexually biased behavioral decisions toward certain pheromone components. These findings will help to develop behavioral-mediating tools as part of integrated pest management approaches for this cross-border pest.

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