Multi-layer molecular analysis reveals distinctive metabolomic and transcriptomic profiles of different sweet corn varieties
文献类型： 外文期刊
作者： Li, Kun 1 ; Zeng, Jigang 1 ; Zhang, Nan 1 ; Yu, Yongtao 1 ; Zhu, Wenguang 1 ; Li, Gaoke 1 ; Hu, Jianguang 1 ;
作者机构： 1.Guangdong Acad Agr Sci, Crop Res Inst, Guangdong Prov Key Lab Crop Genet Improvement, Guangzhou 510640, Peoples R China
2.Huazhong Agr Univ, Coll Plant Sci & Technol, Wuhan, Hubei, Peoples R China
关键词： sweet corn; sugar; transcriptome; metabolome; eGWAS
期刊名称：FRONTIERS IN PLANT SCIENCE （ 影响因子：4.8； 五年影响因子：5.7 ）
ISSN： 1664-462X
年卷期： 2024 年 15 卷
页码：
收录情况： SCI
摘要： In plants, sugar metabolism involves a complex interplay of genetic, molecular and environmental factors. To better understand the molecular mechanisms underlying these processes, we utilized a multi-layered approach that integrated transcriptomic and metabolomic datasets generated from multiple different varieties of sweet corn. Through this analysis, we found 2533 genes that were differentially expressed in the immature kernel tissues of sweet corn, including genes involved in transcriptional regulation, sugar metabolism, primary metabolism, and other processes associated with adaptability of sweet corn. We also detected 31 differential metabolites among the three types of sweet corn. Utilizing an integrated approach encompassing transcriptomics and eGWAS, we elucidated the transcriptional regulatory patterns governing these differential metabolites. Specifically, we delved into the transcriptional modulation of malate- and ubiquitin-associated genes across a range of sweet corn varieties, shedding new light on the molecular mechanisms underlying their regulation. This study provides a framework for future research aimed at improving the current understanding of sugar metabolism and regulatory gene networks in sweet corn, which could ultimately lead to the development of novel strategies for crop improvement.
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