小桶
生物
索拉尼镰刀菌
转录组
基因
苯丙素
植物抗病性
植物对草食的防御
镰刀菌
溃疡
防御机制
RNA序列
植物
遗传学
基因表达
生物合成
作者
Chengling Zhang,Qinchuan Luo,Wei Tang,Junxian Ma,Dawei Yang,Jingwei Chen,Fangyuan Gao,Hui Sun,Yan Xie
出处
期刊:Genes
[MDPI AG]
日期:2023-04-25
卷期号:14 (5): 969-969
标识
DOI:10.3390/genes14050969
摘要
Sweetpotato (Ipomoea batatas) is an important root crop that is infected by Fusarium solani in both seedling and root stages, causing irregular black or brown disease spots and root rot and canker. This study aims to use RNA sequencing technology to investigate the dynamic changes in root transcriptome profiles between control check and roots at 6 h, 24 h, 3 days, and 5 days post-inoculation (hpi/dpi) with F. solani. The results showed that the defense reaction of sweetpotato could be divided into an early step (6 and 24 hpi) without symptoms and a late step to respond to F. solani infection (3 and 5 dpi). The differentially expressed genes (DEGs) in response to F. solani infection were enriched in the cellular component, biological process, and molecular function, with more DEGs in the biological process and molecular function than in the cellular component. Kyoto Encyclopedia of Genes and Genomes (KEGG) pathway analysis showed that the main pathways were metabolic pathways, the biosynthesis of secondary metabolites, and carbon metabolism. More downregulated genes were identified than upregulated genes in the plant-pathogen interaction and transcription factors, which might be related to the degree of host resistance to F. solani. The findings of this study provide an important basis to further characterize the complex mechanisms of sweetpotato resistance against biotic stress and identify new candidate genes for increasing the resistance of sweetpotato.
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