| Title: | Volatile secondary metabolome and transcriptome analysis reveals distinct regulation mechanism of aroma biosynthesis in Syringa oblata and S. vulgaris |
| Author(s): | Yang Z; Zhu Y; Zhang X; Zhang H; Zhang X; Liu G; Zhao Q; Bao Z; Ma F; |
| Address: | "Weifang Academy of Agricultural Sciences, Weifang, 261071, Shandong, China. State Key Laboratory of Crop Biology, College of Horticulture Science and Engineering, Shandong Agricultural University, Tai-An, 271018, Shandong, China. Weifang Academy of Agricultural Sciences, Weifang, 261071, Shandong, China. Electronic address: zhaoqingzhu11@126.com. State Key Laboratory of Crop Biology, College of Horticulture Science and Engineering, Shandong Agricultural University, Tai-An, 271018, Shandong, China. Electronic address: zbao@sdau.edu.cn. State Key Laboratory of Crop Biology, College of Horticulture Science and Engineering, Shandong Agricultural University, Tai-An, 271018, Shandong, China. Electronic address: fma@sdau.edu.cn" |
| DOI: | 10.1016/j.plaphy.2023.03.003 |
| ISSN/ISBN: | 1873-2690 (Electronic) 0981-9428 (Linking) |
| Abstract: | "Lilacs have high ornamental value due to their strong aroma. However, the molecular regulatory mechanisms of aroma biosynthesis and metabolism in lilac were largely unclear. In this study, two varieties with distinct aroma, Syringa oblata 'Zi Kui' (faint aroma) and Syringa vulgaris 'Li Fei' (strong aroma), were used for exploring the regulation mechanism of aroma difference. Via GC-MS analysis, a total of 43 volatile components were identified. Terpene volatiles was the most abundant volatiles constituting the aroma of two varieties. Notably, 3 volatile secondary metabolites were unique in 'Zi Kui' and 30 volatile secondary metabolites were unique in 'Li Fei'. Then, a transcriptome analysis was performed to clarify the regulation mechanism of aroma metabolism difference between these two varieties, and identified 6411 differentially expressed genes (DEGs). Interestingly, ubiquinone and other terpenoid-quinone biosynthesis genes were significantly enriched in DEGs. We further conducted a correlation analysis between the volatile metabolome and transcriptome and found that TPS, GGPPS, and HMGS genes might be the key contributors to the differences in floral fragrance composition between the two lilac varieties. Our study improves the understanding in the regulation mechanism of Lilac aroma and would help improve the aroma of ornamental crops by metabolic engineering" |
| Keywords: | *Syringa/genetics/metabolism Odorants Gene Expression Profiling Metabolome Transcriptome/genetics Terpenes/metabolism Aroma Lilac Transcriptome Volatile metabolome; |
| Notes: | "MedlineYang, Zhiying Zhu, Yuanyuan Zhang, Xu Zhang, Hailiang Zhang, Xiaoyu Liu, Genzhong Zhao, Qingzhu Bao, Zhilong Ma, Fangfang eng France 2023/03/09 Plant Physiol Biochem. 2023 Mar; 196:965-973. doi: 10.1016/j.plaphy.2023.03.003. Epub 2023 Mar 2" |
