Transcriptome Analysis of Sogatella furcifera (Homoptera: Delphacidae) in Response to Sulfoxaflor and Functional Verification of Resistance-Related P450 Genes
The white-back planthopper (WBPH), , is a major rice pest in China and in some other rice-growing countries of Asia. The extensive use of pesticides has resulted in severe resistance of to variety of chemical insecticides. Sulfoxaflor is a new diamide insecticide that acts on nicotinic acetylcholine...
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Published in | International journal of molecular sciences Vol. 20; no. 18; p. 4573 |
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Main Authors | , , , , , , |
Format | Journal Article |
Language | English |
Published |
Switzerland
MDPI AG
15.09.2019
MDPI |
Subjects | |
Online Access | Get full text |
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Summary: | The white-back planthopper (WBPH),
, is a major rice pest in China and in some other rice-growing countries of Asia. The extensive use of pesticides has resulted in severe resistance of
to variety of chemical insecticides. Sulfoxaflor is a new diamide insecticide that acts on nicotinic acetylcholine receptors (nAChRs) in insects. The aim of this study was to explore the key genes related to the development of resistance to sulfoxaflor in
and to verify their functions. Transcriptomes were compared between white-back planthoppers from a susceptible laboratory strain (Sus-Lab) and Sus-Lab screened with the sublethal LC
dose of sulfoxaflor for six generations (SF-Sel). Two P450 genes (
and
) and three transcription factors (
,
and
) with upregulated expression verified by qRT-PCR were detected in the Sus-Lab and SF-Sel strains. The functions of
and
were analyzed by RNA interference, and the relative normalized expressions of
and
in the SF-Sel population were lower than under dsGFP treatment after dsRNA injection. Moreover, the mortality rates of SF-Sel population treated with the LC
concentration of sulfoxaflor after the injecting of dsRNA targeting
and
were significantly higher than in the dsGFP group from 72 h to 96 h (
< 0.05), and mortality in the
knockdown group was clearly higher than that of the
knockdown group. The interaction between the tertiary structures of
and
and sulfoxaflor was also predicted, and
showed a stronger metabolic ability to process sulfoxaflor. Therefore, overexpression of
and
may be one of the primary factors in the development of sulfoxaflor resistance in
. |
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Bibliography: | ObjectType-Article-1 SourceType-Scholarly Journals-1 ObjectType-Feature-2 content type line 23 These authors equally contributed to this work. |
ISSN: | 1422-0067 1661-6596 1422-0067 |
DOI: | 10.3390/ijms20184573 |