Zhu Yuxi, Wang Xinyu, Wang Sibo, Song Zhangrong, Du Yuzhou
Department of Entomology, College of Plant Protection, Yangzhou University, Yangzhou 225009, China.
Entomology and Nematology Department, University of Florida, Gainesville, FL 32611, USA.
Insects. 2024 Oct 9;15(10):784. doi: 10.3390/insects15100784.
Heritable endosymbiont is prevalent among arthropods, serving multiple functions for their hosts. However, the role of in mediating thermal preference selection remains largely unexplored. In this study, we utilized a custom-built thermal gradient to evaluate the thermal preference (Tp) of 1367 individuals of the invasive leaf-miner with or without wLhui from Yunnan and Xinjiang populations. Under meticulously controlled conditions and with a vast sample size, we found no significant difference in the mean Tp between wLhui-infected and uninfected leaf miners from either population when host age and sex were not considered. Furthermore, generalized linear model (GLM) analysis revealed no significant correlation between average Tp and age, sex, or infection, nor interactions among these factors, except in the Xinjiang population, where Tp was strongly associated with host age. Finally, we discuss the ecological implications of these findings and propose future research directions on -mediated host Tp in the leaf miner. Overall, our findings do not provide evidence that significantly affects the thermal preference of . Further studies across different systems are needed to investigate the complex interactions between and insect thermal behavior.
可遗传内共生菌在节肢动物中普遍存在，为宿主发挥多种功能。然而，其在介导热偏好选择中的作用在很大程度上仍未得到探索。在本研究中，我们利用定制的热梯度装置评估了来自云南和新疆种群的1367只带有或不带有wLhui的入侵潜叶蝇个体的热偏好（Tp）。在精心控制的条件下且样本量巨大的情况下，当不考虑宿主年龄和性别时，我们发现来自这两个种群的感染wLhui和未感染wLhui的潜叶蝇之间的平均Tp没有显著差异。此外，广义线性模型（GLM）分析表明，平均Tp与年龄、性别或wLhui感染之间没有显著相关性，这些因素之间也没有相互作用，但在新疆种群中，Tp与宿主年龄密切相关。最后，我们讨论了这些发现的生态意义，并提出了未来关于潜叶蝇中wLhui介导宿主Tp的研究方向。总体而言，我们的研究结果没有提供证据表明wLhui会显著影响潜叶蝇的热偏好。需要在不同系统中进行进一步研究，以调查wLhui与昆虫热行为之间的复杂相互作用。
