Hubei Insect Resources Utilization and Sustainable Pest Management Key Laboratory, College of Plant Science and Technology, Huazhong Agricultural University, Wuhan, Hubei 430070, People's Republic of China.
Hubei Provincial General Station of Plant Protection, Wuhan, Hubei 430070, People's Republic of China.
J Agric Food Chem. 2022 Sep 14;70(36):11367-11376. doi: 10.1021/acs.jafc.2c04189. Epub 2022 Sep 2.
(J. E. Smith) is a worldwide economically important crop pest. Although the individuals of that invaded China have been characterized as the corn strain, they also have the ability to damage other crops in China. The physiological and behavioral responses of to different host plants are poorly understood. In the present study, we investigated the host plant preference, fitness costs, and differences in detoxification gene expression and microbiome composition between two strains that fed on different crop plant diets. The results showed that larvae exhibited no obvious preference for corn or rice, but significant suppression of development was observed in the rice-fed strain. In addition, the corn-fed strain showed higher insecticide tolerance and detoxification enzyme activities than the rice-fed strain. Moreover, multiple detoxification genes were upregulated in the corn-fed strain, and microbiome composition variation was observed between the two strains. Together, the results suggest that population-specific plasticity is related to host plant diets in . These results provide a theoretical basis for the evolution of resistance differences in and are helpful for designing resistance management strategies for aimed at different crops.
（J. E. Smith）是一种对世界经济有重要影响的作物害虫。尽管入侵中国的个体已被确定为玉米品系，但它们也有能力损害中国的其他作物。人们对该物种个体对不同宿主植物的生理和行为反应知之甚少。在本研究中，我们调查了两种以不同作物植物为食的种群对不同宿主植物的偏好、适应成本以及解毒基因表达和微生物组组成的差异。结果表明，幼虫对玉米或水稻没有明显的偏好，但在以水稻为食的种群中，发育受到显著抑制。此外，以玉米为食的种群对杀虫剂的耐受性和解毒酶活性均高于以水稻为食的种群。此外，在以玉米为食的种群中，多个解毒基因上调，并且两个种群之间观察到微生物组组成的变化。综上所述，种群特有的可塑性与种群的宿主植物饮食有关。这些结果为研究提供了理论依据，有助于针对不同作物设计针对种群的抗性管理策略。
