Effects of histone methylation modification on low temperature seed germination and growth of maize
文献类型： 外文期刊
作者： Qi, Xin 1 ; Wan, Chang 2 ; Zhang, Xing 1 ; Sun, Weifeng 1 ; Liu, Rui 1 ; Wang, Zhennan 1 ; Wang, Zhenhui 1 ; Ling, Fenglou 1 ;
作者机构： 1.Jilin Agr Univ, Fac Agron, Changchun, Jilin, Peoples R China
2.Jilin Acad Agr Sci, Inst Grassland & Ecol, Changchun, Jilin, Peoples R China
期刊名称：SCIENTIFIC REPORTS （ 影响因子：4.6； 五年影响因子：4.9 ）
ISSN： 2045-2322
年卷期： 2023 年 13 卷 1 期
页码：
收录情况： SCI
摘要： Low temperature is a limiting factor of seed germination and plant growth. Although there is a lot information on the response of maize to low temperatures, there is still poorly description of how histone methylation affects maize germination and growth development at low temperatures. In this study, the germination rate and physiological indexes of wild-type maize inbred lines B73 (WT), SDG102 silencing lines (AS), SDG102 overexpressed lines (OE) at germination stage and seedling stage were measured under low temperature stress (4 celcius), and transcriptome sequencing was applied to analyze the differences of gene expression in panicle leaves among different materials. The results showed that the germination rate of WT and OE maize seeds at 4 celcius was significantly lower than 25 celcius. The content of MDA, SOD and POD of 4 celcius seeding leaves higher than contrast. Transcriptome sequencing results showed that there were 409 different expression genes (DEGs) between WT and AS, and the DEGs were mainly up-regulated expression in starch and sucrose metabolism and phenylpropanoid biosynthesis. There were 887 DEGs between WT and OE, which were mainly up-regulated in the pathways of plant hormone signal transduction, porphyrin and chlorophyll metabolism. This result could provide a theoretical basis for analyzing the growth and development of maize from the perspective of histone methylation modification.
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