抑制植物耐药性可能是适应性草食动物中常见的特征
Jéssica Teodoro-Paulo1,2,3, Carlos Fernandes1, Lin Dong2
1cE3c-Centre for Ecology Evolution and Environmental Changes & CHANGE-Global Change and Sustainability Institute, Faculty of Sciences University of Lisbon Lisbon Portugal.
Ecology and evolution
|July 15, 2025
概括
适应番茄植物的蜘蛛主要抑制宿主防御,与野生植物的防御不同. 这表明,通过自然选择,防御抑制在草食害虫中迅速成为常见.
科学领域:
- *生态学和进化生物学
- * 农业昆虫学 农业昆虫学
- * 植物与昆虫的相互作用
背景情况:
- * 草食动物采用各种策略,包括抵抗和防御抑制,以克服植物的防御.
- * 蜘蛛 (Tetranychus urticae) 是重要的农业害虫,对宿主植物表现出不同的反应.
- *以前对野生宿主进行的研究表明,防御诱导是常见的,而抑制和抵抗是罕见的.
研究的目的:
- * 调查适应番茄的Tetranychus urticae种群中的防御诱导和抑制特征.
- * 评估在田间采集的番茄植物虫种群中防御抑制的流行程度.
- *为了评估效应器84表达作为防御抑制的预测器.
主要方法:
- *从三个田地种植西红的地点收集了Tetranychus urticae种群.
- * 测量诱导植物防御,并与虫卵位数据相关联.
- * 评估了效应因子84的表达,以将其与防御抑制联系起来.
主要成果:
- *防御抑制是从番茄田中的虫种群中观察到的占主导地位的表型.
- *与预期相反,抑制比防御诱导更为普遍.
- * 效应器84表达被评估为潜在的抑制指标.
结论:
- * 防御抑制是宿主适应的西红上的蜘蛛种群中普遍存在的表型.
- *自然选择可能会在新宿主殖民后迅速支持防御抑制.
- * 抑制可能是许多适应特定宿主的食草害虫的共同特征.
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