The genome- and transcriptome-wide analysis of innate immunity in the brown planthopper, Nilaparvata lugens

作者：Yan‐Yuan Bao, Lv-Yu Qu, Dong Zhao, Libo Chen, Hong-Yuan Jin, Liang-Min Xu, Jiaan Cheng, Chuan‐Xi Zhang · 发表于：BMC Genomics · 年份：2013 · DOI：10.1186/1471-2164-14-160 · 被引用次数：119 · 研究领域：Invertebrate Immune Response Mechanisms、Insect symbiosis and bacterial influences、Neurobiology and Insect Physiology Research

BACKGROUND: The brown planthopper (Nilaparvata lugens) is one of the most serious rice plant pests in Asia. N. lugens causes extensive rice damage by sucking rice phloem sap, which results in stunted plant growth and the transmission of plant viruses. Despite the importance of this insect pest, little is known about the immunological mechanisms occurring in this hemimetabolous insect species. RESULTS: In this study, we performed a genome- and transcriptome-wide analysis aiming at the immune-related genes. The transcriptome datasets include the N. lugens intestine, the developmental stage, wing formation, and sex-specific expression information that provided useful gene expression sequence data for the genome-wide analysis. As a result, we identified a large number of genes encoding N. lugens pattern recognition proteins, modulation proteins in the prophenoloxidase (proPO) activating cascade, immune effectors, and the signal transduction molecules involved in the immune pathways, including the Toll, Immune deficiency (Imd) and Janus kinase signal transducers and activators of transcription (JAK-STAT) pathways. The genome scale analysis revealed detailed information of the gene structure, distribution and transcription orientations in scaffolds. A comparison of the genome-available hemimetabolous and metabolous insect species indicate the differences in the immune-related gene constitution. We investigated the gene expression profiles with regards to how they responded to bacte...