数字农科院2.0

Evolution of the biosynthetic pathways of terpene scent compounds in roses

文献类型： 外文期刊

作者： Junzhong Shang;Dedang Feng;Heng Liu;Lintao Niu;Runhui Li;Yajun Li;Mengxi Chen;Ao Li;Zhenhua Liu;Yanhong He;Xiang Gao;Hongying Jian;Changquan Wang;Kaixue Tang;Manzhu Bao;Jihua Wang;Shuhua Yang;Huijun Yan;Guogui Ning

作者机构：

关键词： citronellol biosynthetic pathway;comparative genomics;evolution;terpenoid compounds

期刊名称： Current Biology

ISSN： 0960-9822

年卷期： 2024 年 34 卷 15 期

页码：

收录情况： SCIE（2024版）

摘要： It is unknown why roses are terpene-rich, what the terpene biosynthetic pathways in roses are, and why only a few rose species produce the major components of rose essential oil. Here, we assembled two high-quality chromosome-level genomes for Rosa rugosa and Rosa multiflora. We also re-sequenced 132 individuals from the F1 progeny of Rosa chinensis and Rosa wichuraiana and 36 of their related species. Comparative genomics revealed that expansions of the 3-hydroxy-3-methylglutaryl-coenzyme A reductase (HMGR) and terpene synthases (TPSs) gene families led to the enrichment of terpenes in rose scent components. We constructed a terpene biosynthesis network and discovered a TPS-independent citronellol biosynthetic pathway in roses through gene functional identification, genome-wide association studies (GWASs), and multi-omic analysis. Heterologous co-expression of rose citronellol biosynthetic genes in Nicotiana benthamiana led to citronellol production. Our genomic and metabolomic analyses suggested that the copy number of NUDX1-1a determines the citronellol content in different rose species. Our findings not only provide additional genome and gene resources and reveal the evolution of the terpene biosynthetic pathways but also present a nearly complete scenario for terpenoid metabolism that will facilitate the breeding of fragrant roses and the production of rose oil.

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