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- Title
Transcriptome Analysis of the Fruit of Two Strawberry Cultivars "Sunnyberry" and "Kingsberry" That Show Different Susceptibility to Botrytis cinerea after Harvest.
- Authors
Lee, Kyuweon; Lee, Jeong Gu; Min, Kyeonglim; Choi, Jeong Hee; Lim, Sooyeon; Lee, Eun Jin; Tran, Lam-Son Phan
- Abstract
Gray mold (Botrytis cinerea) is a fungal plant pathogen causing postharvest decay in strawberry fruit. Here, we conducted a comparative transcriptome analysis to identify differences in gene expression between the immature-green (IG) and mature-red (MR) stages of the "Sunnyberry" (gray mold-resistant) and "Kingsberry" (gray mold susceptible) strawberry cultivars. Most of the genes involved in lignin and alkane-type wax biosynthesis were relatively upregulated in "Sunnyberry". However, pathogenesis-related proteins encoding R- and antioxidant-related genes were comparatively upregulated in "Kingsberry". Analysis of gene expression and physiological traits in the presence and absence of B. cinerea inoculation revealed that the defense response patterns significantly differed between IG and MR rather than the cultivars. "Kingsberry" showed higher antioxidant induction at IG and upregulated hemicellulose-strengthening and R genes at MR. Hence, "Sunnyberry" and "Kingsberry" differed mainly in terms of the expression levels of the genes forming cuticle, wax, and lignin and controlling the defense responses. These discrepancies might explain the relative difference between these strawberry cultivars in terms of their postharvest responses to B. cinerea.
- Subjects
STRAWBERRIES; BOTRYTIS cinerea; CULTIVARS; FRUIT; GENES; GENE expression; POSTHARVEST losses of crops
- Publication
International Journal of Molecular Sciences, 2021, Vol 22, Issue 4, p1518
- ISSN
1661-6596
- Publication type
Article
- DOI
10.3390/ijms22041518