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Single-Cell RNA sequencing of leaf sheath cells reveals the mechanism of rice resistance to brown planthopper (Nilaparvata lugens)

文献类型： 外文期刊

作者： Zha, Wenjun 1 ; Li, Changyan 1 ; Wu, Yan 1 ; Chen, Junxiao 1 ; Li, Sanhe 1 ; Sun, Minshan 3 ; Wu, Bian 1 ; Shi, Shaojie 1 ; Liu, Kai 1 ; Xu, Huashan 1 ; Li, Peide 1 ; Liu, Kai 1 ; Yang, Guocai 1 ; Chen, Zhijun 1 ; Xu, Deze 1 ; Zhou, Lei 1 ; You, Aiqing 1 ;

作者机构： 1.Hubei Acad Agr Sci, Food Crops Inst, Key Lab Crop Mol Breeding, Hubei Key Lab Food Crop Germplasm & Genet Improvem, Wuhan, Peoples R China

2.Hubei Hongshan Lab, Wuhan, Peoples R China

3.Henan Assist Res Biotechnol Co Ltd, Zhengzhou, Peoples R China

关键词： single-cell; RNA-seq; leaf sheath cells; resistant; Nilaparvata lugens; rice

期刊名称：FRONTIERS IN PLANT SCIENCE （ 影响因子：5.6； 五年影响因子：6.8 ）

ISSN： 1664-462X

年卷期： 2023 年 14 卷

页码：

收录情况： SCI

摘要： The brown planthopper (BPH) (Nilaparvata lugens) sucks rice sap causing leaves to turn yellow and wither, often leading to reduced or zero yields. Rice co-evolved to resist damage by BPH. However, the molecular mechanisms, including the cells and tissues, involved in the resistance are still rarely reported. Single-cell sequencing technology allows us to analyze different cell types involved in BPH resistance. Here, using single-cell sequencing technology, we compared the response offered by the leaf sheaths of the susceptible (TN1) and resistant (YHY15) rice varieties to BPH (48 hours after infestation). We found that the 14,699 and 16,237 cells (identified via transcriptomics) in TN1 and YHY15 could be annotated using cell-specific marker genes into nine cell-type clusters. The two rice varieties showed significant differences in cell types (such as mestome sheath cells, guard cells, mesophyll cells, xylem cells, bulliform cells, and phloem cells) in the rice resistance mechanism to BPH. Further analysis revealed that although mesophyll, xylem, and phloem cells are involved in the BPH resistance response, the molecular mechanism used by each cell type is different. Mesophyll cell may regulate the expression of genes related to vanillin, capsaicin, and ROS production, phloem cell may regulate the cell wall extension related genes, and xylem cell may be involved in BPH resistance response by controlling the expression of chitin and pectin related genes. Thus, rice resistance to BPH is a complicated process involving multiple insect resistance factors. The results presented here will significantly promote the investigation of the molecular mechanisms underlying the resistance of rice to insects and accelerate the breeding of insect-resistant rice varieties.

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