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Transcriptome and Metabolome Analysis of Rice Cultivar CBB23 after Inoculation by Xanthomonas oryzae pv. oryzae Strains AH28 and PXO99A

文献类型： 外文期刊

作者： Chen, Pingli 1 ; Wang, Junjie 2 ; Liu, Qing 1 ; Liu, Junjie 1 ; Mo, Qiaoping 2 ; Sun, Bingrui 1 ; Mao, Xingxue 1 ; Jiang, Liqun 1 ; Zhang, Jing 1 ; Lv, Shuwei 1 ; Yu, Hang 1 ; Chen, Weixiong 2 ; Liu, Wei 1 ; Li, Chen 1 ;

作者机构： 1.Guangdong Acad Agr Sci, Minist Agr & Rural Affairs, Guangdong Key Lab New Technol Rice Breeding, Key Lab Genet & Breeding High Qual Rice Southern C, Guangzhou 510640, Peoples R China

2.Guangzhou Acad Agr Sci, Guangzhou 510335, Peoples R China

关键词： Xanthomonas oryzae; Xa23; AH28; RNA-seq; metabolome

期刊名称：PLANTS-BASEL （ 影响因子：4.5； 五年影响因子：4.8 ）

ISSN： 2223-7747

年卷期： 2024 年 13 卷 10 期

页码：

收录情况： SCI

摘要： Bacterial leaf blight (BLB), among the most serious diseases in rice production, is caused by Xanthomonas oryzae pv. oryzae (Xoo). Xa23, the broadest resistance gene against BLB in rice, is widely used in rice breeding. In this study, the rice variety CBB23 carrying the Xa23 resistance gene was inoculated with AH28 and PXO99(A) to identify differentially expressed genes (DEGs) associated with the resistance. Transcriptome sequencing of the infected leaves showed 7997 DEGs between the two strains at different time points, most of which were up-regulated, including cloned rice anti-blight, peroxidase, pathology-related, protein kinase, glucosidase, and other coding genes, as well as genes related to lignin synthesis, salicylic acid, jasmonic acid, and secondary metabolites. Additionally, the DEGs included 40 cloned, five NBS-LRR, nine SWEET family, and seven phenylalanine aminolyase genes, and 431 transcription factors were differentially expressed, the majority of which belonged to the WRKY, NAC, AP2/ERF, bHLH, and MYB families. Metabolomics analysis showed that a large amount of alkaloid and terpenoid metabolite content decreased significantly after inoculation with AH28 compared with inoculation with PXO99(A), while the content of amino acids and their derivatives significantly increased. This study is helpful in further discovering the pathogenic mechanism of AH28 and PXO99(A) in CBB23 rice and provides a theoretical basis for cloning and molecular mechanism research related to BLB resistance in rice.

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