Comprehensive dynamic transcriptome analysis at two seed germination stages in maize (Zea mays L.)
文献类型： 外文期刊
作者： Han, Zanping 1 ; Wang, Bin 1 ; Tian, Lei 2 ; Wang, Shunxi 2 ; Zhang, Jun 4 ; Guo, ShuLei 4 ; Zhang, Hengchao 1 ; Xu, Leng 1 ;
作者机构： 1.Henan Univ Sci & Technol, Coll Agron, Luoyang 471003, Peoples R China
2.Henan Agr Univ, Coll Agron, Synerget Innovat Ctr Henan Grain Crops, Zhengzhou 450002, Peoples R China
3.Henan Agr Univ, Natl Key Lab Wheat & Maize Crop Sci, Zhengzhou 450002, Peoples R China
4.Henan Acad Agr Sci, Cereal Inst, Henan Prov Key Lab Maize Biol, Zhengzhou 450002, Peoples R China
期刊名称：PHYSIOLOGIA PLANTARUM （ 影响因子：4.5； 五年影响因子：4.576 ）
ISSN： 0031-9317
年卷期： 2020 年 168 卷 1 期
页码：
收录情况： SCI
摘要： Seed germination, as an integral stage of crop production, directly affects Zea mays (maize) yield and grain quality. However, the molecular mechanisms of seed germination remain unclear in maize. We performed comparative transcriptome analysis of two maize inbred lines, Yu82 and Yu537A, at two stages of seed germination. Expression profile analysis during seed germination revealed that a total of 3381 and 4560 differentially expressed genes (DEGs) were identified in Yu82 and Yu537A at the two stages. Transcription factors were detected from several families, such as the bZIP, ERF, WRKY, MYB and bHLH families, which indicated that these transcription factor families might be involved in driving seed germination in maize. Prominent DEGs were submitted for KEGG enrichment analysis, which included plant hormones, amino acid mechanism, nutrient reservoir, metabolic pathways and ribosome. Of these pathways, genes associated with plant hormones, especially gibberellins, abscisic acid and auxin may be important for early germination in Yu82. In addition, DEGs involved in amino acid mechanism showed significantly higher expression levels in Yu82 than in Yu537A, which indicated that energy supply from soluble sugars and amino acid metabolism may contribute to early germination in Yu82. This results provide novel insights into transcriptional changes and gene interactions in maize during seed germination.
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