A dominant role of transcriptional regulation during the evolution of C4 photosynthesis in Flaveria species
文献类型： 外文期刊
作者： Lyu, Ming-Ju Amy 1 ; Du, Huilong 2 ; Yao, Hongyan 4 ; Zhang, Zhiguo 5 ; Chen, Genyun 1 ; Huang, Yuhui 1 ; Ni, Xiaoxiang 1 ; Chen, Faming 1 ; Zhao, Yong-Yao 1 ; Tang, Qiming 1 ; Miao, Fenfen 1 ; Wang, Yanjie 1 ; Zhao, Yuhui 2 ; Lu, Hongwei 2 ; Fang, Lu 2 ; Gao, Qiang 2 ; Qi, Yiying 7 ; Zhang, Qing 7 ; Zhang, Jisen 7 ; Yang, Tao 8 ; Cui, Xuean 5 ; Liang, Chengzhi 2 ; Lu, Tiegang 5 ; Zhu, Xin-Guang 1 ;
作者机构： 1.Chinese Acad Sci, Ctr Excellence Mol Plant Sci, State Key Lab Plant Mol Genet, Shanghai 200032, Peoples R China
2.Chinese Acad Sci, Inst Genet & Dev Biol, Innovat Acad Seed Design, State Key Lab Plant Genom, Beijing, Peoples R China
3.Hebei Univ, Inst Life Sci & Green Dev, Sch Life Sci, Baoding, Peoples R China
4.Fudan Univ, Sch Life Sci, State Key Lab Genet Engn, Shanghai 200438, Peoples R China
5.Chinese Acad Agr Sci, Biotechnol Res Inst Natl Key Facil Gene Resources, Beijing 100081, Peoples R China
6.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
7.Fujian Agr & Forestry Univ, Coll Life Sci,Key Lab Sugarcane Biol & Genet Breed, Natl Engn Res Ctr Sugarcane, Ctr Genom & Biotechnol,Fujian Prov Key Lab Haixia, Fuzhou, Peoples R China
8.China Natl GeneBank, Shenzhen 518120, Peoples R China
期刊名称：NATURE COMMUNICATIONS （ 影响因子：15.7； 五年影响因子：17.2 ）
ISSN：
年卷期： 2025 年 16 卷 1 期
页码：
收录情况： SCI
摘要： C4 photosynthesis exemplifies convergent evolution of complex traits. Herein, we construct chromosome-scale genome assemblies and perform multi-omics analysis for five Flaveria species, which represent evolutionary stages from C3 to C4 photosynthesis. Chromosome-scale genome sequence analyses reveal a gradual increase in genome size during the evolution of C4 photosynthesis attributed to the expansion of transposable elements. Systematic annotation of genes encoding C4 enzymes and transporters identify additional copies of three C4 enzyme genes through retrotranspositions in C4 species. C4 genes exhibit elevated mRNA and protein abundances, reduced protein-to-RNA ratios, and comparable translation efficiencies in C4 species, highlighting a critical role of transcriptional regulation in C4 evolution. Furthermore, we observe an increased abundance of ethylene response factor (ERF) transcription factors and cognate cis-regulatory elements associated with C4 genes regulation. Altogether, our study provides valuable genomic resources for the Flaveria genus and sheds lights on evolutionary and regulatory mechanisms underlying C4 photosynthesis.
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