Journal
JOURNAL OF INVERTEBRATE PATHOLOGY
Volume 145, Issue -, Pages 9-12Publisher
ACADEMIC PRESS INC ELSEVIER SCIENCE
DOI: 10.1016/j.jip.2017.03.001
Keywords
Bacillus thuringiensis; Cry toxin; Aminopeptidase N; Chilo suppressalis; Bt receptor; RNA interference
Categories
Funding
- Ministry of Agriculture of China [2016ZX08001001]
- National Natural Science Foundation of China [31672020]
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Transgenic rice expressing Bacillus thuringiensis (Bt) Cry toxins are resistant to lepidopteran pests, such as Chilo suppressalis, a major insect pest of rice in Asia. Understanding how these toxins interact with their hosts is crucial to understanding their insecticidal action. In this study, knockdown of two aminopeptidase N genes (APN1 and APN2) by RNA interference resulted in decreased susceptibility of C. suppressalis larvae to the Bt rice varieties TT51 (Cry1Ab and Cry1Ac fusion genes) and T1C-19 (Cry1Ca), but not T2A-1 (Cry2Aa). This suggests that APN1 and APN2 are receptors for Cry1A and Cry1C toxins in C suppressalis. (C) 2017 Elsevier Inc. All rights reserved.
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