期刊
NATURE COMMUNICATIONS
卷 12, 期 1, 页码 -出版社
NATURE PORTFOLIO
DOI: 10.1038/s41467-021-23611-0
关键词
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资金
- National Key Research & Development Program of China [2019YFC1711100, 2017YFC1700700, 2017YFC1701000]
- National Natural Science Foundation of China [31870198, 81973429, 31961133007, 82011530137]
- Central Government Guides Local Science and Technology Development Fund in Hubei Province [2019ZYYD063]
- Hubei Science Foundation for Distinguished Young Scholars [2019CFA097]
- Technological Innovation Project of Hubei Province [2018ACA125]
Chinese goldthread (Coptis chinensis) is an early-diverging eudicot plant with diverse medicinal applications. The high-quality genome assembly and annotation of C. chinensis revealed a single ancient whole-genome duplication event shared by the Ranunculaceae family. The study also highlighted the functional importance of CYP719 gene in diversifying protoberberine-type alkaloids.
Chinese goldthread (Coptis chinensis Franch.), a member of the Ranunculales, represents an important early-diverging eudicot lineage with diverse medicinal applications. Here, we present a high-quality chromosome-scale genome assembly and annotation of C. chinensis. Phylogenetic and comparative genomic analyses reveal the phylogenetic placement of this species and identify a single round of ancient whole-genome duplication (WGD) shared by the Ranunculaceae. We characterize genes involved in the biosynthesis of protoberberine-type alkaloids in C. chinensis. In particular, local genomic tandem duplications contribute to member amplification of a Ranunculales clade-specific gene family of the cytochrome P450 (CYP) 719. The functional versatility of a key CYP719 gene that encodes the (S)-canadine synthase enzyme involved in the berberine biosynthesis pathway may play critical roles in the diversification of other berberine-related alkaloids in C. chinensis. Our study provides insights into the genomic landscape of early-diverging eudicots and provides a valuable model genome for genetic and applied studies of Ranunculales.Coptis chinensis represents an early-diverging eudicot lineage with diverse medicinal applications. Here, the authors report its chromosome-scale genome assembly, infer a single ancient whole-genome duplication, and characterize the function of CYP719 in diversification of protoberberine-type alkaloids.
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