Transcriptome Analysis and Metabolic Profiling Reveal the Key Regulatory Pathways in Drought Stress Responses and Recovery in Tomato

• DOI: 10.20944/preprints202310.0078.v1
• Publication Date: 2023-10-03T05:04:21Z
• Authors: Jinshuai Shu; Lili Zhang; Guiming Liu; Xiaoxuan Wang; Fuzhong Liu; Ying Zhang; Yuhui Chen
• Keywords: Drought Tolerance; Metabolic pathway

Drought stress is a major abiotic factor affecting tomato production and fruit quality. However, the genes metabolites associated with responses to water deficiency rehydration are poorly characterized. To identify functional key metabolic pathways underlying drought recovery, drought-susceptible drought-tolerant inbred lines underwent transcriptomic metabolomic analyses. A total of 332 drought-responsive 491 rehydration-responsive core were robustly differentially expressed in both genotypes. The mainly related photosynthesis–antenna proteins, nitrogen metabolism, plant–pathogen interactions, MAPK signaling pathway. Various transcription factors, including homeobox-leucine zipper protein ATHB-12, NAC 29, heat A-6b-like, may be vital for status. Moreover, 24,30-dihydroxy-12(13)-enolupinol, caffeoyl hawthorn acid, adenosine 5′-monophosphate, guanosine identified genotypes under recovery conditions. combined analysis highlighted importance 38 involved pathways, biosynthesis secondary metabolites, amino acids, ABC transporters stress. Our results provide valuable clues regarding molecular basis tolerance rehydration. data presented herein relevant genetically improving enhance tolerance.