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Volume 15
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10.3390/plants15010026
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Article

Time-Series Comparative Transcriptome Analyses of Two Potato Cultivars with Different Verticillium Wilt Resistance

by
Guoquan Fan
1,2,†,
Zhiguo Ren
3,†,
Yanling Gao
1,2,
Guili Di
1,2,
Peng Wang
1,2,
Shu Zhang
1,2,
Wei Zhang
1,2,
Min Tu
4,*,
Yin Li
5 and
Shuxin Han
1,2,*
1
Institute of Industrial Crops, Heilongjiang Academy of Agricultural Sciences, Harbin 150086, China
2
Heilongjiang Provincial Key Laboratory for Potato Biology and Quality Improvement, Harbin 150086, China
3
College of Plant Protection, Northeast Agricultural University, Harbin 150030, China
4
Hubei Key Laboratory of Agricultural Waste Resource Utilization, School of Chemical and Environmental Engineering, Wuhan Polytechnic University, Wuhan 430023, China
5
The International Science and Technology Cooperation Base (Genetic Engineering), The Key Laboratory of Molecular Biophysics of Chinese Ministry of Education, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan 430074, China
*
Authors to whom correspondence should be addressed.
†
These authors contributed equally to this work.
Plants 2026, 15(1), 26; https://doi.org/10.3390/plants15010026 (registering DOI)
Submission received: 27 October 2025 / Revised: 17 December 2025 / Accepted: 19 December 2025 / Published: 21 December 2025
(This article belongs to the Special Issue Solanaceae Plants Genetics)
Review Reports Versions Notes

Abstract

Comparative omics analysis offers one of the most direct and effective approaches to gain novel insights into crop traits, facilitating candidate gene identification and crop improvement. Verticillium dahliae causes one of the most globally devastating crop diseases, the Verticillium wilt (VW). However, comparative transcriptome resources regarding VW resistance remain scarce in a major host species potato. To address this knowledge gap, we provide a comprehensive comparative RNA-seq analysis of VW resistance between a VW-resistant and -susceptible potato cultivar (LS8 and SP, respectively). VW inoculation induced dramatic transcriptomic changes, resulting in 14,310 differentially expressed genes (DEGs) in LS8 and 21,739 DEGs in SP. With the time-series analysis, we disentangled the VW-associated transcriptomic responses from those reflected LS8-SP cultivar differences. Particularly, LS8 featured a rapid response of phytohormone salicylic acid and defense-related specialized metabolites at 1 day post inoculation (dpi), followed by large-scale metabolic reprogramming, including carbohydrate and choline metabolism and enhanced biosynthesis of secondary cell wall components (e.g., hemicellulose, xylan, cuticle, suberin, and wax). Furthermore, we identified highly expressed VW-responsive potato phenylalanine ammonia-lyase genes (StPALs) and revealed the higher PAL activities in LS8 associated with VW resistance. Overall, our results provide the first transcriptomic insights into VW resistance in potato and new candidate genes regarding VW resistance.
Keywords: comparative transcriptome; potato; verticillium dahliae; transcriptomics; phenylalanine ammonia-lyase comparative transcriptome; potato; verticillium dahliae; transcriptomics; phenylalanine ammonia-lyase

Share and Cite

MDPI and ACS Style

Fan, G.; Ren, Z.; Gao, Y.; Di, G.; Wang, P.; Zhang, S.; Zhang, W.; Tu, M.; Li, Y.; Han, S. Time-Series Comparative Transcriptome Analyses of Two Potato Cultivars with Different Verticillium Wilt Resistance. Plants 2026, 15, 26. https://doi.org/10.3390/plants15010026

AMA Style

Fan G, Ren Z, Gao Y, Di G, Wang P, Zhang S, Zhang W, Tu M, Li Y, Han S. Time-Series Comparative Transcriptome Analyses of Two Potato Cultivars with Different Verticillium Wilt Resistance. Plants. 2026; 15(1):26. https://doi.org/10.3390/plants15010026

Chicago/Turabian Style

Fan, Guoquan, Zhiguo Ren, Yanling Gao, Guili Di, Peng Wang, Shu Zhang, Wei Zhang, Min Tu, Yin Li, and Shuxin Han. 2026. "Time-Series Comparative Transcriptome Analyses of Two Potato Cultivars with Different Verticillium Wilt Resistance" Plants 15, no. 1: 26. https://doi.org/10.3390/plants15010026

APA Style

Fan, G., Ren, Z., Gao, Y., Di, G., Wang, P., Zhang, S., Zhang, W., Tu, M., Li, Y., & Han, S. (2026). Time-Series Comparative Transcriptome Analyses of Two Potato Cultivars with Different Verticillium Wilt Resistance. Plants, 15(1), 26. https://doi.org/10.3390/plants15010026

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