Acta Agriculturae Zhejiangensis ›› 2023, Vol. 35 ›› Issue (5): 1097-1107.DOI: 10.3969/j.issn.1004-1524.2023.05.13

• Plant Protection • Previous Articles     Next Articles

Transcriptomic analysis of Fusarium solani infecting sweetpotato

LUO Qinchuan(), TANG Wei, MA Jukui, CHEN Jingwei, YANG Dongjing, GAO Fangyuan, SUN Houjun, XIE Yiping, ZHANG Chengling()   

  1. Key laboratory of Biology and Genetic Improvement of Sweetpotato, Ministry of Agriculture and Rural Affairs, Xuzhou Institute of Agricultural Sciences in Jiangsu Xuhuai Area, Sweet Potato Research Institute of Chinese Academy of Agricultural Sciences Xuzhou 221131, Jiangsu,China
  • Received:2022-10-08 Online:2023-05-25 Published:2023-06-01

Abstract:

Fusarium solani is an important pathogen that causes root rot and canker disease of sweetpotato. To determine the change trend of F. solani genes during different infection stage, the high-throughput sequencing platform, Illumina Hiseq 4000 was used. The results showed that, a total of 1 068 861 644 clean reads were obtained. Total 1 056, 995, 737 and 935 differentially expressed genes were screened out at 6 h, 24 h, 3 d and 5 d after infection respectively, including 587, 679, 430 and 551 up-regulated genes and 469, 316, 307 and 384 down-regulated genes, respectively. These genes mainly belong to molecular function and cell component by GO enrichment analysis, and metabolic and genetic information processes by KEGG pathway analysis. The top 20 genes of expression level in the genes whose differential expression fold more than two times were selected to carry out further analysis. Among them, 15 genes were related to metabolism, involving carbohydrate metabolism, energy metabolism, nucleotide metabolism and amino acid metabolism, 3 genes were related to translation, protein processing and modification, and 2 genes were related to autophagy. Nine genes were randomly selected to verify the expression trend by quantitative real-time fluorescence PCR. The qRT-PCR results showed that the expression trend was consistent with the results of transcriptome data. In this study we found that the genes related to the metabolism of F. solani expressed differentially with significance during the pathogen infecting sweetpotato. The possible reason is that the pathogen needs a lot of nutrients, and then convert them to energy and intermediate, to break out the host defense and colonize in sweetpotato at last.

Key words: Fusarium solani, sweetpotato, RNA-seq

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