Downregulation of Chilo suppressalis alkaline phosphatase genes associated with resistance to three transgenic Bacillus thuringiensis rice lines

Downregulation of Chilo suppressalis alkaline phosphatase genes associated with resistance to three transgenic Bacillus thuringiensis rice lines
复制标题

二化螟碱性磷酸酶基因的下调与三种转基因苏云金芽孢杆菌水稻品系的抗性相关

DOI:
10.1111/imb.12349
复制
发表时间:
2018-02
影响因子:
2.6
通讯作者:
Ma W
Ma W
中科院分区:
农林科学2区
文献类型:
--
作者:
Qiu L;Wang P;Wu T;Li B;Wang X;Lei C;Lin Y;Zhao J;Ma W

文献摘要

参考文献

被引文献

相似文献

由细菌苏云金芽孢杆菌(Bacillus thuringiensis)产生的杀虫晶体(Cry)蛋白对鳞翅目害虫具有高毒性。已经开发出了表达cry基因的转基因水稻品系,其对水稻害虫具有抗性。了解Cry毒素在水稻害虫中的作用方式将提高我们有效使用它们作为杀虫剂的能力。本研究以二化螟(Chilo suppressalis)为研究对象,探讨了碱性磷酸酶(ALP)参与水稻Cry 1A、Cry 2Aa和Cry 1Ca杀虫活性的可能性。我们首先克隆了三个新的C。suppressalis alps(Csalps)的幼虫中肠中分离出一条带。suppressalis. RNA干扰敲除6个不同的Csalp基因(Csalp 1、Csalp 2、Csalp 3、Csalp 4、Csalp 5和Csalp 6)显示,敲低这些基因中的三个,Csalp 1、Csalp 2和Csalp 4,降低了表达Cry 1Ab和Cry 1Ac融合蛋白的转基因水稻品系TT 51的幼虫死亡率,而抑制Csalp 1、Csalp 2、Csalp 3、Csalp 4和Csalp 6,Csalp 4和Csalp 6转录物降低了幼虫对表达cry 2Aa的转基因水稻T2 A-1的易感性。此外,Csalp 1、Csalp 2、Csalp 3、Csalp 4和Csalp 5转录物的下调赋予了对表达cry 1Ca的转基因水稻品系T1 C-19的显著耐受性。这些结果表明,这些碱性磷酸酶在Cry 1A,Cry 2A和Cry 1C对C的毒性中起关键作用。suppressalis.
Insecticidal crystal (Cry) proteins produced by the bacterium Bacillus thuringiensis are highly toxic to lepidopteran pests. Strains of transgenic rice expressing cry genes have been developed that are resistant to rice pests. Understanding the mode of action of Cry toxins in rice pests will improve our ability to use them effectively as insecticides. In this study, we tested the hypothesis that alkaline phosphatases (ALPs) are involved in Cry1A, Cry2Aa and Cry1Ca toxicity in Chilo suppressalis, an important insect pest of rice crops in China. We first cloned three novel C. suppressalis alps (Csalps) from the larval midgut of C. suppressalis. RNA interference knockdown of six different Csalp genes (Csalp1, Csalp2, Csalp3, Csalp4, Csalp5 and Csalp6) showed that knockdown of three of these, Csalp1, Csalp2 and Csalp4, reduced larval mortality to the transgenic rice strain TT51, which expresses a fusion protein of Cry1Ab and Cry1Ac, whereas suppression of Csalp1, Csalp2, Csalp3, Csalp4 and Csalp6 transcripts decreased the susceptibility of larvae to the transgenic rice strain T2A‐1, which expresses cry2Aa. Moreover, downregulation of Csalp1, Csalp2, Csalp3, Csalp4 and Csalp5 transcripts conferred significant tolerance to the transgenic rice strain T1C‐19, which expresses cry1Ca. These results suggest that these ALPs play a key role in the toxicity of Cry1A, Cry2A and Cry1C to C. suppressalis.
DOI: 10.1111/j.1744-7917.2010.01333.x
发表时间: 2010-10-01
期刊: INSECT SCIENCE
影响因子: 4
作者:
Yu, Hong-Kun;Chen, Hao;Guo, Yu-Yuan
通讯作者: Guo, Yu-Yuan
DOI: 10.1038/srep28697
发表时间: 2016-06-29
期刊: Scientific reports
影响因子: 4.6
作者:
Zhu J;Dong YC;Li P;Niu CY
通讯作者: Niu CY
DOI: --
发表时间: 2006
期刊: --
影响因子: --
作者:
C. James
通讯作者: C. James
DOI: 10.1303/aez.2001.323
发表时间: 2001-08
影响因子: 1.3
作者:
M. Goto;Yi-ping Li;T. Honma
通讯作者: M. Goto;Yi-ping Li;T. Honma
DOI: 10.1016/j.bbrc.2013.12.045
发表时间: 2014-01
影响因子: 3.1
作者:
Baoju Wang;M. Shahzad;Zan Zhang;Haina Sun;Ping Han;Fei Li;Zhaojun Han
通讯作者: Baoju Wang;M. Shahzad;Zan Zhang;Haina Sun;Ping Han;Fei Li;Zhaojun Han