The invention discloses a phosphoacetylglucosamine mutase gene fragment of white-backed planthopper and its application. Phosphoacetylglucosamine mutase gene fragment 1 was obtained by analyzing the transcriptome database of the white-backed planthopper. Its nucleotide sequence was shown in the sequence table SEQ ID NO:1. Sequence 2 of phosphoacetylglucosamine mutase gene SEQ ID NO:4 was selected and used to synthesize dsRNA of the gene. The dsRNA was transported to the white-backed planthopper by microinjection. It was found that the target gene could be specifically silenced. During the growth and development of white-backed planthopper, abnormal phenotypes of dysecdysis or eclosion were produced, which eventually led to death and interfered with 5. The mortality rate was 37% after the first day. The invention provides candidate genes for future pest control strategies mediated by RNA interference of white-backed planthopper, and provides theoretical basis for developing new pesticides.
【技术实现步骤摘要】
白背飞虱磷乙酰氨基葡萄糖变位酶基因片段及其应用
本专利技术涉及昆虫基因工程
,具体涉及一种白背飞虱磷乙酰氨基葡萄糖变位酶基因片段及其dsRNA在害虫防治中的应用。
技术介绍
白背飞虱Sogatallafurcifera(Horváth)隶属于半翅目Hemiptera飞虱科Delphacidae,是亚太地区水稻生产上的一种重要害虫。其主要通过成虫、若虫直接刺吸稻株汁液,造成水稻生长缓慢,分蘖延迟,瘪粒增加,受害严重时可引起稻株枯死;此外,白背飞虱还是南方水稻黑条矮缩病病毒(southernriceblack-streakeddwarfvirus,SRBSDV)的主要传播媒介,造成的危害更是毁灭性的。当下白背飞虱的防控仍然主要依赖于化学杀虫剂,而化学杀虫剂的大量不合理使用,对生态环境和人类的健康构成了严重的威胁,同时也使得白背飞虱对多种杀虫剂产生了不同程度的抗性,因此,亟待发展一种新型的环境友好型的防治白背飞虱的策略。RNA干扰(RNAinterference,RNAi)是近年来发现的一种重要基因沉默手段,是通过体外合成一段与靶基因同源的双链RNA(double ...
【技术保护点】
1.白背飞虱磷乙酰氨基葡萄糖变位酶基因片段,其特征在于:包括基因片段一,基因片段一的核苷酸序列如SEQ ID NO:1所示。
【技术特征摘要】
1.白背飞虱磷乙酰氨基葡萄糖变位酶基因片段,其特征在于:包括基因片段一,基因片段一的核苷酸序列如SEQIDNO:1所示。2.根据权利要求1所述白背飞虱磷乙酰氨基葡萄糖变位酶基因片段,其特征在于:还包括基因片段二,基因片段二的核苷酸序列如SEQIDNO:4所示。3.根据权利要求2所述白背飞虱磷乙酰氨基葡萄糖变位酶基因片段,其特征在于,基因片段二的获取方法包括如下步骤:基于基因片段一,设计特异性的上游引物SEQIDNO:2和下游引物SEQIDNO:3,通过PCR扩增...
【专利技术属性】
技术研发人员:王召,朱环,王翔,金道超,杨洪,
申请(专利权)人:凯里学院,
类型:发明
国别省市:贵州,52
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