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Su Y, Jiao M, Guan H, Zhao Y, Deji C, Chen G. Comparative transcriptome analysis of Saposhnikovia divaricata to reveal drought and rehydration adaption strategies. Mol Biol Rep 2023; 50:3493-3502. [PMID: 36781610 DOI: 10.1007/s11033-023-08305-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2022] [Accepted: 01/26/2023] [Indexed: 02/15/2023]
Abstract
BACKGROUND Water scarcity has become one of the most prevalent environmental factors adversely affecting plant growth and development. Different species have developed multiple ways of drought resistance. Saposhnikovia divaricata is a commonly used traditional herb in East Asia. However, limited information is available on the drought response of this herb and further clarification of underlying molecular mechanism remains a challenge. METHODS AND RESULTS In this study, a comparative transcriptome analysis was firstly conducted to identify the major pathways and candidate genes involved in the drought adaptive response of S. divaricata. The seedlings of S. divaricata were subjected to progressive drought by withholding water for 16 days followed by 8 days of rehydration. Transcriptome analysis identified a total of 89,784 annotated unigenes. The number of differentially expressed genes (DEGs) gradually increased with the deepening of drought and decreased after rehydration. Gene Ontology enrichment analysis and Kyoto Encyclopedia of Genes and Genomes pathway analysis suggested genes related to oxidoreductase activity, carbohydrate metabolism, plant hormone signaling pathway and secondary metabolism were important in drought response of S. divaricata. Specific genes involved in reactive oxygen species scavenging system (POD, Cu/Zn-SOD, APX), abscisic acid and jasmonic acid signaling pathway (PYL4, PP2Cs, JAR1, JAZ) and phenylpropanoid biosynthesis (4CL, CCR, CAD) underwent dynamic alterations under drought and rehydration. Finally, the expression pattern of 12 selected DEGs from the transcriptomic profiling was validated by real-time quantitative PCR. CONCLUSION Our study laid a foundation for understanding the stress response of S. divaricata and other Apiaceae family plant at molecular level.
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Affiliation(s)
- Youla Su
- Key Laboratory of Herbage & Endemic Crop Biology, Ministry of Education, Inner Mongolia University, Hohhot, 010020, China.,School of Life Sciences, Inner Mongolia University, Hohhot, 010020, China.,The Good Agriculture Practice Engineering Technology Research Center of Chinese and Mongolian Medicine in Inner Mongolia, Hohhot, 010020, China
| | - Miaomiao Jiao
- Key Laboratory of Herbage & Endemic Crop Biology, Ministry of Education, Inner Mongolia University, Hohhot, 010020, China.,School of Life Sciences, Inner Mongolia University, Hohhot, 010020, China.,The Good Agriculture Practice Engineering Technology Research Center of Chinese and Mongolian Medicine in Inner Mongolia, Hohhot, 010020, China
| | - Huan Guan
- Key Laboratory of Herbage & Endemic Crop Biology, Ministry of Education, Inner Mongolia University, Hohhot, 010020, China.,School of Life Sciences, Inner Mongolia University, Hohhot, 010020, China.,The Good Agriculture Practice Engineering Technology Research Center of Chinese and Mongolian Medicine in Inner Mongolia, Hohhot, 010020, China
| | - Yuhuan Zhao
- Key Laboratory of Herbage & Endemic Crop Biology, Ministry of Education, Inner Mongolia University, Hohhot, 010020, China.,School of Life Sciences, Inner Mongolia University, Hohhot, 010020, China.,The Good Agriculture Practice Engineering Technology Research Center of Chinese and Mongolian Medicine in Inner Mongolia, Hohhot, 010020, China
| | - Cuomu Deji
- Key Laboratory of Herbage & Endemic Crop Biology, Ministry of Education, Inner Mongolia University, Hohhot, 010020, China.,School of Life Sciences, Inner Mongolia University, Hohhot, 010020, China
| | - Guilin Chen
- Key Laboratory of Herbage & Endemic Crop Biology, Ministry of Education, Inner Mongolia University, Hohhot, 010020, China. .,School of Life Sciences, Inner Mongolia University, Hohhot, 010020, China. .,The Good Agriculture Practice Engineering Technology Research Center of Chinese and Mongolian Medicine in Inner Mongolia, Hohhot, 010020, China.
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