一种烟粉虱类果胶甲酯酶、BtPME1基因、dsRNA及其在防治烟粉虱中的应用

By using the BtPME1 gene and dsRNA of the whitefly pectin methyl esterase, the expression of the whitefly was interfered with, which solved the problem of increased pesticide resistance in the whitefly and achieved green control of the whitefly, reducing its survival rate and egg production on host plants.

CN121653098BActive Publication Date: 2026-07-17INSTITUTE OF VEGETABLES & FLOWERS CHINESE ACADEMY OF AGRICULTURAL SCIENCES
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
INSTITUTE OF VEGETABLES & FLOWERS CHINESE ACADEMY OF AGRICULTURAL SCIENCES
Filing Date
2025-12-10
Publication Date
2026-07-17

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Abstract

本发明涉及基因工程技术领域，特别是涉及一种烟粉虱类果胶甲酯酶、BtPME1基因、dsRNA及其在防治烟粉虱中的应用。本发明提供的烟粉虱类果胶甲酯酶的氨基酸序列如SEQ ID NO.2所示。本发明基于实验室前期烟粉虱基因组数据，分析烟粉虱水平转移基因，发现烟粉虱中存在一个植物源的水平转移的类果胶甲酯酶编码基因BtPME1，其表达的类果胶甲酯酶的氨基酸序列如SEQ ID NO.2所示。本发明通过沉默BtPME1基因后，可以有效降低烟粉虱在寄主植株上的存活率和产卵量。本发明为基于RNA干扰导向的烟粉虱绿色防治技术提供新的靶标，并为提升作物抗虫性状开辟了新途径。
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