文献类型： 外文期刊
作者： Shen, Fei 1 ; Qin, Yajuan 1 ; Wang, Rui 2 ; Huang, Xin 1 ; Wang, Ying 1 ; Gao, Tiangang 4 ; He, Junna 2 ; Zhou, Yue 3 ; Jiao, Yuannian 4 ; Wei, Jianhua 1 ; Li, Lei 3 ; Yang, Xiaozeng 1 ;
作者机构： 1.Beijing Acad Agr & Forestry Sci, Inst Biotechnol, Beijing Key Lab Agr Genet Resources & Biotechnol, Beijing 100097, Peoples R China
2.China Agr Univ, Beijing Key Lab Dev & Qual Control Ornamental Cro, Coll Hort, Beijing 100193, Peoples R China
3.Peking Univ, Sch Adv Agr Sci, State Key Lab Prot & Plant Gene Res, Beijing 100871, Peoples R China
4.Chinese Acad Sci, Inst Bot, State Key Lab Evolutionary & Syst Bot, Beijing 100093, Peoples R China
期刊名称：NATURE COMMUNICATIONS （ 影响因子：16.6； 五年影响因子：17.0 ）
ISSN：
年卷期： 2023 年 14 卷 1 期
页码：
收录情况： SCI
摘要： The Asteraceae (daisy family) is one of the largest families of plants. The genetic basis for its high biodiversity and excellent adaptability has not been elucidated. Here, we compare the genomes of 29 terrestrial plant species, including two de novo chromosome-scale genome assemblies for stem lettuce, a member of Asteraceae, and Scaevola taccada, a member of Goodeniaceae that is one of the closest outgroups of Asteraceae. We show that Asteraceae originated similar to 80 million years ago and experienced repeated paleopolyploidization. PII, the universal regulator of nitrogen-carbon (N-C) assimilation present in almost all domains of life, has conspicuously lost across Asteraceae. Meanwhile, Asteraceae has stepwise upgraded the N-C balance system via paleopolyploidization and tandem duplications of key metabolic genes, resulting in enhanced nitrogen uptake and fatty acid biosynthesis. In addition to suggesting a molecular basis for their ecological success, the unique N-C balance system reported for Asteraceae offers a potential crop improvement strategy.
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