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Analysis of the Rehmannia chingii geneome identifies RcCYP72H7 as an epoxidase in iridoid glycoside biosynthesis

Nature Communications. 2025-07; 
Fengqing Wang, Zhennan Jiang, Junge Gao, Chunyan Miao, Ci Song, Yahe Yang, Ning Ding, Yajing Li, Hongzheng Sun, Caixia Xie, Bao Zhang, Pengyu Zhang, Li Gu, Qiuwen Hao, Zhongyi Zhang, Luqi Huang, Yuan Yuan College of Agronomy, Henan Agricultural University, Zhengzhou, China. fqwang@henau.edu.cn
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Protein Electrophoresis and Western The mixture was centrifuged at 25,400 × g at 4 °C for 10 min, and the supernatant was collected and denatured in SDS sample buffer (GenScript, cat# M00676) at 99 °C for 5 min. Get A Quote

摘要

Rehmannia chingii (2n = 2x = 28) is an important folk medicinal plant with high therapeutic value, particularly due to its richness in iridoid glycosides. However, research on its evolution and gene functional identification has been hindered by the lack of a high-quality genome. Here, we present the 1.169 Gb telomere-to-telomere (T2T) genome sequence of R. chingii. Phylogenetic analysis confirms that Rehmannia belongs to the Orobanchaceae family. We find that structural genes of the 2-C-methyl-d-erythritol-4-phosphate (MEP) pathway and the iridoid pathway are predominantly expressed in R. chingii leaves. Further analyses reveal a cytochrome P450 gene cluster localized on chromosome 8, and identify RcCYP72H7 wi... More

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