Comparative Transcriptome Profiling Reveals Compatible And Incompatible Patterns Of Potato Toward Phytophthora Infestans
文献类型: 外文期刊
作者: Duan, YF; Duan, SG; Armstrong, MR; Xu, JF; Zheng, JY; Hu, J; Chen, XW; Hein, I; Li, GC; Jin, LP
作者机构:
关键词: Potato; Late Blight; Phytophthora Infestans; Rnaseq; Drenseq
期刊名称: G3-GENES GENOMES GENETICS
ISSN: 2160-1836
年卷期: 2020 年 10 卷 2 期
页码:
收录情况: JCR(2021版)
摘要: Late blight, caused by Phytophthora infestans (P. infestans), is a devastating disease in potato worldwide. Our previous study revealed that the Solanum andigena genotype 03112-233 is resistant to P. infestans isolate 90128, but susceptible to the super race isolate, CN152. In this study, we confirmed by diagnostic resistance gene enrichment sequencing (dRenSeq) that the resistance of 03112-233 toward 90128 is most likely based on a distinct new R gene(s). To gain an insight into the mechanism that governs resistance or susceptibility in 03112-223, comparative transcriptomic profiling analysis based on RNAseq was initiated. Changes in transcription at two time points (24 h and 72 h) after inoculation with isolates 90128 or CN152 were analyzed. A total of 8,881 and 7,209 genes were differentially expressed in response to 90128 and CN152, respectively, and 1,083 differentially expressed genes (DEGs) were common to both time points and isolates. A substantial number of genes were differentially expressed in an isolate-specific manner with 3,837 genes showing induction or suppression following infection with 90128 and 2,165 genes induced or suppressed after colonization by CN152. Hierarchical clustering analysis suggested that isolates with different virulence profiles can induce different defense responses at different time points. Further analysis revealed that the compatible interaction caused higher induction of susceptibility genes such as SWEET compared with the incompatible interaction. The salicylic acid, jasmonic acid, and abscisic acid mediated signaling pathways were involved in the response against both isolates, while ethylene and brassinosteroids mediated defense pathways were suppressed. Our results provide a valuable resource for understanding the interactions between P. infestans and potato.
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