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Transcriptomic and metabolomic landscape of quinoa during seed germination

文献类型： 外文期刊

作者： Hao, Yuqiong 1 ; Hong, Yechun 2 ; Guo, Huimin 3 ; Qin, Peiyou 1 ; Huang, Ancheng 2 ; Yang, Xiushi 4 ; Ren, Guixing 1 ;

作者机构： 1.Chinese Acad Agr Sci, Inst Crop Sci, 80 South Xueyuan Rd, Beijing 100081, Peoples R China

2.Southern Univ Sci & Technol, Key Lab Mol Design Plant Cell Factory Guangdong H, Dept Biol, SUSTech PKU Inst Plant & Food Sci, Shenzhen 518055, Guangdong, Peoples R China

3.Shanghai Acad Agr Sci, Biotechnol Res Inst, Shanghai 201106, Peoples R China

4.Chinese Acad Agr Sci, Inst Bast Fiber Crops, Changsha 410205, Peoples R China

5.Chengdu Univ, Coll Pharm & Biol Engn, 1 Shilling Rd,Chenglo Ave, Chengdu 610106, Peoples R China

关键词： Chenopodium quinoa; Seed germination; Transcriptome and metabolome; Phytohormone; Starch and sucrose metabolism

期刊名称：BMC PLANT BIOLOGY （ 影响因子：5.26； 五年影响因子：5.761 ）

ISSN： 1471-2229

年卷期： 2022 年 22 卷 1 期

页码：

收录情况： SCI

摘要： Background Quinoa (Chenopodium quinoa), a dicotyledonous species native to Andean region, is an emerging crop worldwide nowadays due to its high nutritional value and resistance to extreme abiotic stresses. Although it is well known that seed germination is an important and multiple physiological process, the network regulation of quinoa seed germination is largely unknown. Results Here, we performed transcriptomic study in five stages during transition from quinoa dry seed to seedling. Together with the GC-MS based metabolome analysis, we found that seed metabolism is reprogrammed with significant alteration of multiple phytohormones (especially abscisic acid) and other nutrients during the elongation of radicels. Cell-wall remodeling is another main active process happening in the early period of quinoa seed germination. Photosynthesis was fully activated at the final stage, promoting the biosynthesis of amino acids and protein to allow seedling growth. The multi-omics analysis revealed global changes in metabolic pathways and phenotype during quinoa seed germination. Conclusion The transcriptomic and metabolomic landscape depicted here pave ways for further gene function elucidation and quinoa development in the future.

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[1]Transcriptomic and metabolomic landscape of quinoa during seed germination. Hao, Yuqiong,Qin, Peiyou,Ren, Guixing,Hao, Yuqiong,Hong, Yechun,Huang, Ancheng,Guo, Huimin,Yang, Xiushi,Ren, Guixing. 2022

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