Evaluation of a cuticle protein gene as a potential RNAi target in aphids.

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ID: 27906
2019
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Abstract
RNAi has potential as a pest insect control technique. One possible RNAi target is the cuticle protein, which is important in insect molting and development. As an example, here we evaluated the possibility of designing dsRNA effective for silencing the cuticle protein 19 gene (CP19) in aphids but harmless to non-target predator insects.The sequences of CP19s were similar (86.6-94.4%) among the tested aphid species (Aphis citricidus, Acyrthosiphon pisum, and Myzus persicae) but different in the predator Propylaea japonica. Ingestion of species-specific dsRNAs of CP19 by the three aphids produced 39.3-64.2% gene silencing and 45.8-55.8% mortality. Ingestion of non-species-specific dsRNA (dsAcCP19) by Ac. pisum and M. persicae gave gene silencing levels ranging from 40.4% to 50.3% and 43.3-50.8% mortality. The dsApCP19 did not affect PjCP19 expression or developmental duration in P. japonica.The results demonstrate that CP19 is a promising RNAi target for aphid control via one dsRNA design. The targeting of genes that are conserved in insect pests but not present in beneficial insects is a useful RNAi-based pest control strategy. This article is protected by copyright. All rights reserved.
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shang2019evaluationpest Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors Shang, Feng;Ding, Bi-Yue;Ye, Chao;Yang, Li;Chang, Teng-Yu;Xie, Jiaqin;Tang, Liang-De;Niu, Jinzhi;Wang, Jin-Jun;
Journal Pest management science
Year 2019
DOI
10.1002/ps.5599
URL
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