Luo, J. and Liang, S. and Li, J. and Xu, Z. and Li, L. and Zhu, B. and Li, Z. and Lei, C. and Lindsey, K. and Chen, L. and Jin, S. and Zhang, X. (2017) 'A transgenic strategy for controlling plant bugs (Adelphocoris suturalis) through expression of double-stranded RNA homologous to fatty acyl-coenzyme A reductase in cotton.', New phytologist., 215 (3). pp. 1173-1185.
Plant bugs (Miridae species), which are sap-sucking insects, have emerged as major pests of cotton in China. Most Miridae species are not sensitive to commercial Bacillus thuringiensis (Bt) cotton, resulting in significant economic losses and an increased application of insecticide, which eventually may compromise the future of Bt cotton. We demonstrate that FATTY ACYL-COA REDUCTASE (AsFAR) plays an essential role in the reproduction of the bug Adelphocoris suturalis. Down-regulation of AsFAR expression by injection of double-stranded RNA suppresses ovarian development and female fertility, resulting in females producing few viable offspring. To determine the viability of an RNA interference approach to limit FAR expression and reproductive ability in A. suturalis, a dsRNA targeting the AsFAR gene (dsAsFAR) of A. suturalis was expressed in transgenic cotton plants. AsFAR transcription levels were significantly downregulated in A. suturalis feeding on the transgenic plants. In contained field trials, the transgenic cotton lines significantly suppressed the development of A. suturalis populations and were resistant to damage caused by plant bug infestation. These results suggest a new strategy for the management of plant bug pests of cotton.
|Full text:||(AM) Accepted Manuscript|
Download PDF (10834Kb)
|Publisher Web site:||https://doi.org/10.1111/nph.14636|
|Publisher statement:||This is the accepted version of the following article: Luo, J., Liang, S., Li, J., Xu, Z., Li, L., Zhu, B., Li, Z., Lei, C., Lindsey, K., Chen, L., Jin, S. & Zhang, X. (2017). A transgenic strategy for controlling plant bugs (Adelphocoris suturalis) through expression of double-stranded RNA homologous to fatty acyl-coenzyme A reductase in cotton. New Phytologist, which has been published in final form at https://doi.org/10.1111/nph.14636. This article may be used for non-commercial purposes in accordance With Wiley Terms and Conditions for self-archiving.|
|Date accepted:||02 May 2017|
|Date deposited:||08 May 2017|
|Date of first online publication:||13 June 2017|
|Date first made open access:||13 June 2018|
Save or Share this output
|Look up in GoogleScholar|