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The Chinese Academy of Agricultural Sciences for nectar
Recently, the Institute of Plant Protection of the Chinese Academy of Agricultural Sciences (hereinafter referred to as the Plant Protection Institute) bio-pesticide creation and application innovation team systematically analyzed the function of the major agricultural pest cotton bellworm odor receptor gene family, revealing a new mechanism for scaly-winged insects to evolve in concert with quilt plants through smell. The study has deepened understanding of the co-evolution of insects and plants, targeting such key olfactory receptors to develop environmentally friendly green control techniques for pest behavior regulation. The findings are published online in Molecular Biology and Evolution.
species of scaly-winged insects, including tweezers and butterflies, are one of the most important biomes in the Earth's ecosystem. The larvae of the vast majority of scaly insects can harm all kinds of crops, and the insects eat more nectar to supplement their nutrition.Wang Guirong, a researcher at the
Plant Protection Institute, said that plants release complex plant volatiles during growth, and in the process of co-evolution with plants, scaly-winged insects have also formed a highly sensitive and specific olfactory system to identify various types of plant volatiles, so as to find the host plant and complete the act of feeding, spawning and so on. Little is known about the molecular process by which plant-eating insects identify host volatiles.
The study systematically studied the function of the odor-like gene family of cotton bellworms, a major agricultural pest, mapped the functional map of the cotton bellworm odor-like family-coded host plant volatiles, revealed that cotton bellworm odor-like subjects identified complex host volatiles by combining coding, and answered the question of why scaly-winged pests have only a few dozen odor-like subjects that can encode thousands of odor molecules. On this basis, it was further found that the subjects that identified the smell of flowers in the host plant were highly conservative among the scaly fin insects. The appearance of the receptor is accompanied by the production of a tyche of scaly fin insects, consistent with the outbreak time of the bee plant.
research was supported by projects such as the National Natural Science Foundation of China and the Science and Technology Innovation Project of the Chinese Academy of Agricultural Sciences. (Source: Zhang Qingdan, China Science Daily, Ouyang Canbin)
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