Evidence for a possible fitness trade-off between insecticide resistance and the low temperature movement that is essential for survival of UK populations of Myzus persicae (Hemiptera: Aphididae)
Evidence for a possible fitness trade-off between insecticide resistance and the low temperature movement that is essential for survival of UK populations of Myzus persicae (Hemiptera: Aphididae)
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DOI：
10.1017/s0007485300038669
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发表时间：
1997-12-01
影响因子：
1.9
通讯作者：
Mugglestone, MA
中科院分区：
文献类型：
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作者：
Foster, SP;Harrington, R;Mugglestone, MA
无翅蚜虫需要从衰老的叶子转移到年轻的叶子上，以便在英国的冬天生存。这种行为在低温的田间和实验室试验中进行了研究，使用的是在英国种群中发现的具有酯酶抗性的所有五种已知类别的桃蚜（Sulzer）无性系。两项研究都表明，蚜虫从变质叶片中迁移的趋势与其对杀虫剂的抗性水平成反比。这种与更强的杀虫剂抗性相关的适应不良行为可能导致蚜虫在落叶后与植物分离的风险增加，并在不利的寒冷和潮湿条件下因饥饿而死亡。通过停止表达其扩增的酯酶基因而自发失去对杀虫剂极端抗性的反向克隆，往往表现出与保留其高抗性表型的蚜虫相似的行为。这意味着运动速率与酯酶的产生没有直接关系。
Apterous aphids need to move from ageing to younger leaves in order to survive UK winters. This behaviour was studied at low temperatures in field and laboratory trials using Myzus persicae (Sulzer) clones representing all five recognized categories of esterase-based insecticide resistance found in UK populations. Both studies showed that the tendency of aphids to move from deteriorating leaves was inversely related to their insecticide resistance level. This maladaptive behaviour associated with greater insecticide resistance could lead to increased risks of aphids becoming separated from plants after leaf fall, and subsequent death from starvation when adverse cold and wet conditions prevent return. Revertant clones, that had spontaneously lost extreme resistance to insecticides by ceasing to express their amplified esterase genes, tended to show similar behaviour to aphids that had retained their high resistance phenotypes. This implies that rates of movement were not related directly to esterase production.