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Liu W, Wang X, Song L, Yao W, Guo M, Cheng G, Guo J, Bai S, Gao Y, Li J, Kang Z. Comparative Transcriptome and Widely Targeted Metabolome Analysis Reveals the Molecular Mechanism of Powdery Mildew Resistance in Tomato. Int J Mol Sci 2023; 24:ijms24098236. [PMID: 37175940 PMCID: PMC10178879 DOI: 10.3390/ijms24098236] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2023] [Revised: 04/27/2023] [Accepted: 05/02/2023] [Indexed: 05/15/2023] Open
Abstract
Powdery mildew is a serious problem in tomato production; therefore, the PM-resistant tomato inbred line, '63187', and the susceptible tomato variety, 'Moneymaker (MM)', were used as experimental materials for the combined analysis of transcriptome and widely targeted metabolome on tomato leaves at 0 h post inoculation (hpi), 12 hpi, and 48 hpi. The results indicated that 276 genes were expressed in all treatments, and the K-means cluster analysis showed that these genes were divided into eight classes in '63187' and ten classes in 'MM'. KEGG enrichment showed that amino acid metabolism, signal transduction, energy metabolism, and other secondary metabolites biosynthesis pathways were significantly enriched. Interestingly, the analysis of WRKY family transcription factors (TFs) showed that the expression of four TFs in '63187' increased with no obvious change in 'MM'; and the expression of one TF in 'MM' increased with no obvious change in '63187'. The combined analysis revealed that both phenylpropanoid biosynthesis and flavonoid biosynthesis pathways were enriched in '63187' and 'MM'. In '63187', six metabolites involved in this pathway were downregulated, and four genes were highly expressed, while in 'MM', three metabolites were upregulated, four metabolites were downregulated, and ten genes were highly expressed. These metabolites and genes might be candidates for PM resistance or susceptibility in subsequent studies. These results provide favorable molecular information for the study of the different resistances of tomatoes to PM, and they provide a basis for the breeding of tomato varieties resistant to PM.
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Affiliation(s)
- Wenjuan Liu
- College of Enology and Horticulture, Ningxia University, Yinchuan 750021, China
| | - Xiaomin Wang
- College of Enology and Horticulture, Ningxia University, Yinchuan 750021, China
- Ningxia Modern Facility Horticulture Engineering Technology Research Center, Yinchuan 750021, China
- Key Laboratory of Modern Molecular Breeding for Dominant and Special Crops in Ningxia, Yinchuan 750021, China
| | - Lina Song
- College of Enology and Horticulture, Ningxia University, Yinchuan 750021, China
| | - Wenkong Yao
- College of Enology and Horticulture, Ningxia University, Yinchuan 750021, China
- Ningxia Modern Facility Horticulture Engineering Technology Research Center, Yinchuan 750021, China
- Key Laboratory of Modern Molecular Breeding for Dominant and Special Crops in Ningxia, Yinchuan 750021, China
| | - Meng Guo
- College of Enology and Horticulture, Ningxia University, Yinchuan 750021, China
- Ningxia Modern Facility Horticulture Engineering Technology Research Center, Yinchuan 750021, China
- Key Laboratory of Modern Molecular Breeding for Dominant and Special Crops in Ningxia, Yinchuan 750021, China
| | - Guoxin Cheng
- College of Enology and Horticulture, Ningxia University, Yinchuan 750021, China
- Ningxia Modern Facility Horticulture Engineering Technology Research Center, Yinchuan 750021, China
- Key Laboratory of Modern Molecular Breeding for Dominant and Special Crops in Ningxia, Yinchuan 750021, China
| | - Jia Guo
- State Key Laboratory of Crop Stress Biology for Arid Areas, College of Plant Protection, Northwest A&F University, Yangling 712100, China
| | - Shengyi Bai
- College of Enology and Horticulture, Ningxia University, Yinchuan 750021, China
| | - Yanming Gao
- College of Enology and Horticulture, Ningxia University, Yinchuan 750021, China
- Ningxia Modern Facility Horticulture Engineering Technology Research Center, Yinchuan 750021, China
- Key Laboratory of Modern Molecular Breeding for Dominant and Special Crops in Ningxia, Yinchuan 750021, China
| | - Jianshe Li
- College of Enology and Horticulture, Ningxia University, Yinchuan 750021, China
- Ningxia Modern Facility Horticulture Engineering Technology Research Center, Yinchuan 750021, China
- Key Laboratory of Modern Molecular Breeding for Dominant and Special Crops in Ningxia, Yinchuan 750021, China
| | - Zhensheng Kang
- State Key Laboratory of Crop Stress Biology for Arid Areas, College of Plant Protection, Northwest A&F University, Yangling 712100, China
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