Symbiont infection and psyllid haplotype influence phenotypic plasticity during host switching events

IF 2 3区 农林科学 Q2 ENTOMOLOGY Ecological Entomology Pub Date : 2024-05-13 DOI:10.1111/een.13342
Marco Gebiola, Kerry E. Mauck
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寄主转换过程中,共生体感染和木虱单倍型对表型可塑性的影响
许多食草昆虫物种在利用多种寄主时表现出表型可塑性,这有利于它们在不同的寄主环境中生存。生理上的寄主适应是其中重要的一部分,然而寄主适应对昆虫取食行为的影响却没有得到很好的研究,尤其是对植物病原体的昆虫媒介。我们研究了寄主适应性和植物病原共生体感染对鸡毛蝇(Bactericera cockerelli)取食行为的综合影响,鸡毛蝇是一种寡食性害虫,广泛分布于农作物和自然栖息地,主要以茄科植物为食,并传播一种具有重要经济价值的植物病原体--茄属自由杆菌(Candidatus Liberibacter solanacearum,CLso)。我们采用了因子设计和电渗透图技术来区分宿主适应性、CLso 感染和银环蛇单倍型在同种宿主和异种宿主转换过程中对银环蛇植物内取食行为的影响。这种方法通过量化CLso传播行为的频率和持续时间,将表型可塑性与鸡翅褐飞虱作为媒介的作用联系起来。我们发现,鸡翅褐飞虱摄食效率的多个指标都有明显下降,而感染CLso会加剧这种下降,从而导致病原体传播的减少。胞囊孢子虫的基因型也很重要;在异种宿主转换过程中,中部单倍型的取食效率变化不如西部单倍型剧烈。我们的研究表明,寄主适应和异种寄主转换直接改变了作为病原体传播基础的取食行为,而取食效率降低的程度取决于寄主基因型和感染状况。
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来源期刊
Ecological Entomology
Ecological Entomology 生物-昆虫学
CiteScore
4.90
自引率
4.50%
发文量
94
审稿时长
3 months
期刊介绍: Ecological Entomology publishes top-quality original research on the ecology of insects and related invertebrate taxa. Our aim is to publish papers that will be of considerable interest to the wide community of ecologists who are motivated by ecological or evolutionary theory. The suitability of a manuscript will usually be assessed within 5 days. We publish full-length Original Articles as well as Reviews, Short Communications, Methods and Natural History papers. In Original Articles, we greatly prefer papers that test specific hypotheses and which have a high degree of novelty. All categories aim for innovative contributions that advance the subject of ecological entomology.
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