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- Title
Comparative Physiological and Metabolomic Analyses Reveal the Different Biological Characteristics between Two Tea Cultivars.
- Authors
Jiang, L.; Li, D. J.; Yuan, M. A.; Hu, X. R.; Zhao, D. X.; Kong, X. J.; Weng, X. X.; Chen, B.; Fu, H. W.; Zheng, Z. S.
- Abstract
Camellia sinensis (L.) Kuntze, as an economical woody plant, had been cultivated for tea production for a long history. However, the seeds of tea tree were usually discarded after harvest because of low quality and yield of seed oil. In the present study, we found a new kind of tea tree 'Jincha1' cultivar had higher quality and yield of seed oil compared to 'Wuniuzao' cultivar which was a traditional cultivar in agricultural production. To explore the differential metabolic process between two cultivars, comparative physiological and metabolomics analyses of the tea leaf and fruit were conducted between 'Jincha1' and 'Wuniuzao'. We found the tea leaves and seed oil yield of 'Jincha1' were both higher than those of 'Wuniuzao'. Totally, 179 metabolites were identified in tea fruits, among them, 123 metabolites were identified as significantly differential metabolites between'Jincha1' and 'Wuniuzao'. In addition, the levels of indole 3-acetic acid (IAA) and fatty acids in 'Jincha1' fruit were higher than those in 'Wuniuzao'. These results indicate that as an important auxin, IAA may regulate the growth of tea fruit and fatty acid biosynthesis in 'Jincha1' might be more active than 'Wuniuzao'. The results have enhanced understanding of metabolic process, especially for fatty acid biosynthesis in 'Jincha1' fruit, which would be meaningful for improve tea tree breeding.
- Subjects
METABOLOMICS; TEA growing; TREE breeding; AGRICULTURAL productivity; TEA; SEED yield
- Publication
Russian Journal of Plant Physiology, 2022, Vol 69, Issue 1, p1
- ISSN
1021-4437
- Publication type
Article
- DOI
10.1134/S1021443722010071