Gapless Genome Assembly of ZH8015 and Preliminary Multi-Omics Analysis to Investigate ZH8015's Responses Against Brown Planthopper Infestation

文献类型： 外文期刊

第一作者： Li, Dian

作者： Li, Dian;Duan, Wenjing;Liu, Qun'en;Wu, Weixun;Zhan, Xiaodeng;Sun, Lianping;Zhang, Yingxin;Cheng, Shihua

作者机构：

关键词： Key words: brown planthopper; gapless genome; genome assembly; multi-omics; Nilaparvata lugens; rice

期刊名称：RICE SCIENCE （ 影响因子：5.6； 五年影响因子：5.1 ）

ISSN： 1672-6308

年卷期： 2024 年 31 卷 3 期

页码：

收录情况： SCI

摘要： Accurate genomic information is essential for advancing genetic breeding research in specific rice varieties. This study presented a gapless genome assembly of the indica rice cultivar Zhonghui 8015 (ZH8015) using PacBio HiFi, Hi-C, and ONT (Oxford Nanopore Technologies) ultra-long sequencing technologies, annotating 43 037 gene structures. Subsequently, utilizing this genome along with transcriptomic and metabolomic techniques, we explored ZH8015's response to brown planthopper (BPH) infestation. Continuous transcriptomic sampling indicated significant changes in gene expression levels around 48 h after BPH feeding. Enrichment analysis revealed particularly significant alterations in genes related to reactive oxygen species scavenging and cell wall formation. Metabolomic results demonstrated marked increases in levels of several monosaccharides, which are components of the cell wall and dramatic changes in flavonoid contents. Omics association analysis identified differentially expressed genes associated with key metabolites, shedding light on ZH8015's response to BPH infestation. In summary, this study constructed a reliable genome sequence resource for ZH8015, and the preliminary multi-omics results will guide future insect-resistant breeding research.

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