Host plant affects the sexual attractiveness of the female white-spotted longicorn beetle, Anoplophora malasiaca.
Host plant affects the sexual attractiveness of the female white-spotted longicorn beetle, Anoplophora malasiaca.
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DOI：
10.1038/srep29526
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发表时间：
2016-07-14
影响因子：
4.6
通讯作者：
Fujiwara-Tsujii N
中科院分区：
文献类型：
--
作者：
Yasui H;Fujiwara-Tsujii N
马来星天牛（Anoplophora malasiaca）是日本的一种严重害虫，危害着日本的各种园林绿化和农作物。我们评估了三种不同A的搏动前反应。从柑橘橙子、杨柳和蓝莓树收集的malasiaca种群。大多数的男性接受来自同一宿主植物种群以及女性的杨柳和蓝莓种群内的配偶。然而，显著数量的男性从蓝莓和杨柳人口拒绝女性从普通橙子人口接触后，立即与他们的触角。由于所有三个雌性种群都在其鞘翅上产生接触性信息素，因此预测柑橘橙子种群的雌性具有排斥其他两个种群的雄性的额外化学物质。β-榄香烯被鉴定为仅在柑橘喂养的雌性中发现的关键成分，并且在柳树喂养的雄性中诱导排斥反应。我们的研究结果代表了第一个例子的女性获得的驱蚊剂对同种男性不同的宿主植物种群，表明宿主植物极大地影响了女性的性吸引力。
Anoplophora malasiaca (Coleoptera: Cerambycidae) is a serious pest that destroys various landscape and crop trees in Japan. We evaluated the precopulatory responses of three different A. malasiaca populations collected from mandarin orange, willow and blueberry trees. Most of the males accepted mates from within the same host plant population as well as females from the willow and blueberry populations. However, significant number of males from the blueberry and willow populations rejected females from the mandarin orange population immediately after touching them with their antennae. Because all three of the female populations produced contact sex pheromones on their elytra, the females of the mandarin orange population were predicted to possess extra chemicals that repelled the males of the other two populations. β-Elemene was identified as a key component that was only found in mandarin orange-fed females and induced a rejection response in willow-fed males. Our results represent the first example of a female-acquired repellent against conspecific males of different host plant populations, indicating that the host plant greatly affects the female’s sexual attractiveness.