文献类型： 外文期刊

作者： Wen, Xiaohui ¹ ; Liang, Yuwei ¹ ; Shan, Hongyan ³ ; Chang, Xiaojun ¹ ; Song, Xiaoming ⁴ ; Shen, Shaoqin ⁴ ; Fu, Yanhong ⁴ ; Chen, Dan ⁵ ; Chen, Fei ⁶ ; Li, Yueqing ⁷ ; Guan, Qian ⁷ ; Gao, Qiang ¹ ; Wang, Qi ¹ ; Li, Yonglin ⁹ ; Wang, Zhengjia ¹⁰ ; Kong, Hongzhi ³ ; Liu, Huan ¹¹ ; Gao, Xiang ⁷ ; Zhou, Xiaofan ⁹ ; Thorogood, Chris ¹² ; Zhang, Liangsheng ¹ ;

作者机构： 1.Zhejiang Univ, Coll Agr & Biotechnol, Zhejiang Key Lab Hort Crop Qual Improvement, Hangzhou, Peoples R China

2.Zhejiang Acad Agr Sci, Zhejiang Inst Landscape Plants & Flowers, Hangzhou, Peoples R China

3.Chinese Acad Sci, Inst Bot, State Key Lab Plant Divers & Specialty Crops, Key Lab Systemat & Evolutionary Bot, Beijing, Peoples R China

4.North China Univ Sci & Technol, Coll Life Sci, Tangshan 063210, Hebei, Peoples R China

5.Zhejiang Univ, Hainan Inst, Sanya, Peoples R China

6.Hainan Univ, Coll Trop Crops, Hainan Key Lab Sustainable Utilizat Trop Bioresour, Haikou, Peoples R China

7.Northeast Normal Univ, Key Lab Mol Epigenet MOE, Changchun, Peoples R China

8.Northeast Normal Univ, Inst Genet & Cytol, Changchun, Peoples R China

9.South China Agr Univ, Integrat Microbiol Res Ctr, Guangdong Lab Lingnan Modern Agr, Guangdong Prov Key Lab Microbial Signals & Dis Con, Guangzhou, Peoples R China

10.Zhejiang A&F Univ, Natl Key Lab Dev & Utilizat Forest Food Resources, Hangzhou, Zhejiang, Peoples R China

11.Minist Agr, Key Lab Genom, BGI Res, Shenzhen, Peoples R China

12.Univ Oxford, Dept Biol, Oxford OX1 3SZ, England

13.Univ Oxford, Bot Garden & Arboretum, Oxford OX1 4AZ, England

14.Yazhouwan Natl Lab, Sanya, Peoples R China

关键词： waterlily genomes; early angiosperms; leaf gigantism; stamen innovation; floral scent biosynthesis

期刊名称：PLANT COMMUNICATIONS （ 影响因子：11.6； 五年影响因子：11.8 ）

ISSN： 2590-3462

年卷期： 2025 年 6 卷 6 期

页码：

收录情况： SCI

摘要： As some of the earliest evolving flowering plants, waterlilies offer unique insights into angiosperm evolution. Giant Amazonian waterlilies (genus Victoria) are of particular interest due to their production of the world's largest floating leaves and gigantic flowers that entrap pollinating beetles. Here, we report chromosome-level genome assemblies of Victoria cruziana and three related waterlilies: Euryale ferox, Nymphaea mexicana, and Brasenia schreberi. We found an ancient whole-genome duplication event specific to the Nymphaeales. We reveal major gene duplication and loss events throughout the evolution of angiosperms, with substantial implications for flower development and the biosynthesis of floral volatile organic compounds (FVOCs) in waterlilies. Importantly, we report a unique division of labor in the stamen function of V. cruziana linked to beetle attraction by FVOCs. This is related to the ultra-high expression of VicSABATHa along with Vicchitinase, possibly linked to protection from damage by trapped beetles. Overexpression of VicSABATHa in tobacco leaves reveals a capacity to produce volatile fatty acids, confirming its role in their catalytic synthesis. Overall, these findings provide novel insights into the evolution and adaptations of waterlilies and flowering plants in general.