哪有情可长
(2022-12-31 16:21):
#paper MicroTom Metabolic Network: Rewiring Tomato Metabolic Regulatory Network throughout the Growth Cycle,Molecular Plant , August 2020 ,https://doi.org/10.1016/j.molp.2020.06.005. 作者对整个番茄生命周期的根、茎、叶、花、果实进行取样进行转录组和代谢中测序,构建了番茄生长时期的代谢图谱和番茄发育过程的时间天空网络。除了验证前人已经发表过的重要代谢物的调控网络,也鉴定到一个一个转录因子可以调节重要的次级代谢物的合成,黄酮类的代谢物。该文章的模式跟该课题组发水稻的代谢调控网络类似,包括处理方法都是类似(Rice metabolic regulatory network spanning the entire life cycle)。作为植物中进行代谢组和转录组数据联合分析的入门可以精读下。但是内在的代谢物的作用,还是需要一篇篇文献积累。
MicroTom Metabolic Network: Rewiring Tomato Metabolic Regulatory Network throughout the Growth Cycle
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Abstract:
Tomato (Solanum lycopersicum) is a major horticultural crop worldwide and has emerged as a preeminent model for metabolic research. Although many research efforts have focused on the analysis of metabolite differences between varieties and species, the dynamics of metabolic changes during the tomato growth cycle and the regulatory networks that underlie these changes are poorly understood. In this study, we integrated high-resolution spatio-temporal metabolome and transcriptome data to systematically explore the metabolic landscape across 20 major tomato tissues and growth stages. In the resulting MicroTom Metabolic Network, the 540 detected metabolites and their co-expressed genes could be divided into 10 distinct clusters based on their biological functions. Using this dataset, we constructed a global map of the major metabolic changes that occur throughout the tomato growth cycle and dissected the underlying regulatory network. In addition to verifying previously well-established regulatory networks for important metabolites, we identified novel transcription factors that regulate the biosynthesis of important secondary metabolites such as steroidal glycoalkaloids and flavonoids. Our findings provide insights into spatio-temporal changes in tomato metabolism and generate a valuable resource for the study of metabolic regulatory processes in model plants.
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