Differences in gene expression profiles at the early stage of Solanum lycopersicum infection with mild and severe variants of potato spindle tuber viroid.

Differences in gene expression profiles at the early stage of Solanum lycopersicum infection with mild and severe variants of potato spindle tuber viroid. Virus Res. 2020 Jul 04;:198090 Authors: Więsyk A, Lirski M, Fogtman A, Zagórski-Ostoja W, Góra-Sochacka A Abstract Viroids with small, non-coding circular RNA genome can induce diseases in many plant species. The extend of infection symptoms depends on environmental conditions, viroid strain, and host plant species and cultivar. Pathogen recognition leads to massive transcriptional reprogramming to favor defense responses over normal cellular functions. To better understand the interaction between plant host and potato spindle tuber viroid (PSTVd) variants that differ in their virulence, comparative transcriptomic analysis was performed by an RNA-seq approach. The changes of gene expression were analyzed at the time point when subtle symptoms became visible in plants infected with the severe PSTVd-S23 variant, while those infected with the mild PSTVd-M variant looked like non-infected healthy plants. Over 3000 differentially expressed genes (DEGs) were recognized in both infections, but the majority of them were specific for infection with the severe variant. In both infections recognized DEGs were mainly related to biotic stress, hormone metabolism and signaling, transcription regulation, protein degradation, and transport. The DEGs related to cell cycle and microtubule were un...
Source: Virus Research - Category: Virology Authors: Tags: Virus Res Source Type: research