Transcriptomic and proteomic responses to brown plant hopper (Nilaparvata lugens) in cultivated and Bt-transgenic rice (Oryza sativa) and wild rice (O. rufipogon).

Journal of Proteomics
Yongbo LiuJunsheng Li

Abstract

Strategies are still employed to reduce insect damage in crop production, including conventional breeding with wild germplasm resources and transgenic technology with foreign genes' insertion. Cultivated and Bt-transgenic rice (Oryza sativa) and two ecotypes of wild rice (O. rufipogon) were treated by a 72 h feeding of brown plant hopper (Nilaparvata lugens). Under the feeding of N. lugens, compared with the cultivated rice (568 and 4), more differentially expressed genes (DEGs) and differentially accumulated proteins (DAPs) were identified in transgenic rice (2098 and 11) and two wild ecotypes (1990, 39 and 1932, 25, respectively). The iTRAQ analysis showed 79 DAPs and confirmed the results of RNA-seq, which showed the least GO terms and KEGG pathways responding to herbivory in the cultivated rice. DAPs significantly enriched two GO terms that are related with Bph14 and Bph33 genes in rice. Most of DEGs and DAPs were related to plant biological processes of plant-pathogen interaction and plant hormone signal transduction, and hormone signaling and transcription factors regulate the immune response of rice to BPH. Our results demonstrated the similarity in the wild rice and Bt-transgenic rice for their transcriptomic and proteo...Continue Reading

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Citations

Jun 19, 2021·Frontiers in Microbiology·Lu LiuJin He

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