The genome of Dioscorea zingiberensis sheds light on the biosynthesis, origin and evolution of the medicinally important diosgenin saponins | |
Li, Yi; Tan, Chao; Li, Zihao; Guo, Jingzhe; Li, Song; Chen, Xin; Wang, Chen; Dai, Xiaokang; Yang, Huan; Song, Wei | |
刊名 | HORTICULTURE RESEARCH |
2022 | |
卷号 | 9 |
ISSN号 | 2662-6810 |
DOI | 10.1093/hr/uhac165 |
文献子类 | Article |
英文摘要 | Diosgenin saponins isolated from Dioscorea species such as D. zingiberensis exhibit a broad spectrum of pharmacological activities. Diosgenin, the aglycone of diosgenin saponins, is an important starting material for the production of steroidal drugs. However, how plants produce diosgenin saponins and the origin and evolution of the diosgenin saponin biosynthetic pathway remain a mystery. Here we report a high-quality, 629-Mb genome of D. zingiberensis anchored on 10 chromosomes with 30322 protein-coding genes. We reveal that diosgenin is synthesized in leaves ('source'), then converted into diosgenin saponins, and finally transported to rhizomes ('sink') for storage in plants. By evaluating the distribution and evolutionary patterns of diosgenin saponins in Dioscorea species, we find that diosgenin saponin-containing may be an ancestral trait in Dioscorea and is selectively retained. The results of comparative genomic analysis indicate that tandem duplication coupled with a whole-genome duplication event provided key evolutionary resources for the diosgenin saponin biosynthetic pathway in the D. zingiberensis genome. Furthermore, comparative transcriptome and metabolite analysis among 13 Dioscorea species suggests that specific gene expression patterns of pathway genes promote the differential evolution of the diosgenin saponin biosynthetic pathway in Dioscorea species. Our study provides important insights and valuable resources for further understanding the biosynthesis, evolution, and utilization of plant specialized metabolites such as diosgenin saponins. |
学科主题 | Plant Sciences ; Genetics & Heredity ; Horticulture |
电子版国际标准刊号 | 2052-7276 |
出版地 | CARY |
WOS关键词 | STEROIDAL SAPONINS ; PHYLOGENETIC ANALYSIS ; PROVIDES INSIGHTS ; TOOL ; IDENTIFICATION ; PLANTS ; DIVERSITY ; SEQUENCE |
WOS研究方向 | Science Citation Index Expanded (SCI-EXPANDED) |
语种 | 英语 |
出版者 | OXFORD UNIV PRESS INC |
WOS记录号 | WOS:000922866000015 |
资助机构 | National Natural Science Foundation of China [30370152, 31270345, 31470388] ; USDA National Institute of Food and Agriculture [227700] |
内容类型 | 期刊论文 |
源URL | [http://ir.ibcas.ac.cn/handle/2S10CLM1/28838] |
专题 | 中科院植物分子生理学重点实验室 |
作者单位 | 1.Chinese Acad Sci, Inst Bot, Key Lab Plant Mol Physiol, Beijing 100093, Peoples R China 2.Shaoguan Univ, Henry Fok Coll Biol & Agr, Shaoguan 512005, Peoples R China 3.CAS Ctr Excellence Mol Plant Sci, CAS Key Lab Trop Plant Resources & Sustainable Us, Xishuangbanna Trop Bot Garden, Kunming 650223, Yunnan, Peoples R China 4.Chinese Acad Sci, Ctr Integrat Conservat, Xishuangbanna Trop Bot Garden, Menglun 666303, Peoples R China 5.Grand Biosci, Beijing 102200, Peoples R China 6.Guangxi Univ, Coll Life Sci & Technol, Nanning 530004, Peoples R China 7.Huazhong Agr Univ, Coll Informat, Hubei Key Lab Agr Bioinformat, Wuhan 430070, Peoples R China 8.Wuhan Univ, Coll Life Sci, State Key Lab Hybrid Rice, Wuhan 430072, Peoples R China 9.Smithsonian Inst, Dept Bot, Natl Museum Nat Hist, Washington, DC 20013 USA 10.Gang, David R.] Washington State Univ, Inst Biol Chem, Pullman, WA 99164 USA |
推荐引用方式 GB/T 7714 | Li, Yi,Tan, Chao,Li, Zihao,et al. The genome of Dioscorea zingiberensis sheds light on the biosynthesis, origin and evolution of the medicinally important diosgenin saponins[J]. HORTICULTURE RESEARCH,2022,9. |
APA | Li, Yi.,Tan, Chao.,Li, Zihao.,Guo, Jingzhe.,Li, Song.,...&Li, Jiaru.(2022).The genome of Dioscorea zingiberensis sheds light on the biosynthesis, origin and evolution of the medicinally important diosgenin saponins.HORTICULTURE RESEARCH,9. |
MLA | Li, Yi,et al."The genome of Dioscorea zingiberensis sheds light on the biosynthesis, origin and evolution of the medicinally important diosgenin saponins".HORTICULTURE RESEARCH 9(2022). |
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