首页|Insights into the Superrosids phylogeny and flavonoid synthesis from the telomere-to-telomere gap-free genome assembly of Penthorum chinense Pursh

Insights into the Superrosids phylogeny and flavonoid synthesis from the telomere-to-telomere gap-free genome assembly of Penthorum chinense Pursh

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The completion of the first telomere-to-telomere(T2T)genome assembly of Penthorum chinense Pursh(PC),a prominent medicinal plant in China,represents a significant achievement.This assembly spans a length of 257.5 Mb and consists of nine chromosomes.PC's notably smaller genome size in Saxifragales,compared to that of Paeonia ostii,can be attributed to the low abundance of transposable elements.By utilizing single-copy genes from 30 species,including 28 other Superrosids species,we successfully resolved a previously debated Superrosids phylogeny.Our findings unveiled Saxifragales as the sister group to the core rosids,with both being the sister group to Vitales.Utilizing previously characterized cytochrome P450(CYP)genes,we predicted the compound classes that most CYP genes of PC are involved in synthesizing,providing insight into PC's potential metabolic diversity.Metabolomic and transcriptomic data revealed that the richest sources of the three most noteworthy medicinal components in PC are young leaves and flowers.We also observed higher activity of upstream genes in the flavonoid synthesis pathway in these plant parts.Additionally,through weighted gene co-expression network analysis,we identified gene regulatory networks associated with the three medicinal components.Overall,these findings deepen our understanding of PC,opening new avenues for further research and exploration.

Zhoutao Wang、Junmei Zhou、Junjie Pan、Wei Cheng、Jie Fang、Qundan Lv、Xiaodan Lin、Wenliang Cheng、Liangsheng Zhang、Kejun Cheng

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Genomics and Genetic Engineering Laboratory of Ornamental Plants,College of Agriculture and Biotechnology,Zhejiang University,Hangzhou 311300,China

Chemical Biology Center,Lishui Institute of Agriculture and Forestry Sciences,Lishui 323000,China

Postdoctoral Research Enter,Zhejiang Kangning Pharmaceutical Co.,Ltd,Lishui 323000,China

Product Development Department,Zhejiang Shaowei Yuanzhi Science and Technology Development Co.,Ltd,Lishui 323000,China

Zhejiang Provincial Key Laboratory of Resources Protection and Innovation of Traditional Chinese Medicine,Zhejiang A&F University,Hangzhou,311300,China

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the'Pioneer'and'Leading Goose'Research and Development Program of Zhejiang Province中国博士后科学基金Zhejiang Province Selected Funding for Postdoctoral Research Projects

2023C040202023M743080ZJ2023166

2024

10.1093/hr/uhad274

园艺研究(英文)

园艺研究(英文)

CSTPCD
ISSN：
年,卷(期)：2024.11(2)
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