Identification of the related genes on the asymmetric root growth of Oryza sativa induced by ethylene through transcriptome sequencing, GO and KEGG analysis
文献类型： 外文期刊
作者： Cai, Zeping 1 ; Huang, Zhen 1 ; Wang, Zixuan 1 ; Tao, Yu 1 ; Wu, Fanhua 3 ; Yu, Xudong 1 ; Luo, Jiajia 2 ;
作者机构： 1.Hainan Univ, Coll Forestry, Key Lab Genet & Germplasm Innovat Trop Special Fo, Minist Educ, Haikou 570228, Hainan, Peoples R China
2.Chinese Acad Trop Agr Sci, Trop Crops Genet Resources Inst, Haikou 571101, Hainan, Peoples R China
3.Hainan Univ, Sch Life & Pharmaceut Sci, Haikou 570228, Hainan, Peoples R China
关键词： Ethylene; Asymmetric root growth; Transcriptome sequencing; Oryza sativa
期刊名称：ACTA PHYSIOLOGIAE PLANTARUM （ 影响因子：2.354； 五年影响因子：2.711 ）
ISSN： 0137-5881
年卷期： 2021 年 43 卷 7 期
页码：
收录情况： SCI
摘要： Ethylene (ETH) can induce asymmetric root growth (ARG) in plants to form waves and coiling, which can be eliminated by the ETH perception antagonist silver thiosulfate (STS), indicating that this process depends on the ETH signal transduction. Nevertheless, the related genes have not been reported. In this study, different concentrations of ethephon (ETP) or 1-aminocyclopropane-1-carboxylic acid (ACC) were applied to explore the optimal concentration for inducing the ARG of Oryza sativa. On this basis, five treatments (Water, ETP, ETP + STS, ACC, ACC + STS) were set up. Then, transcriptome sequencing, GO and KEGG analysis were used to identify the genes related to ETH-induced ARG. Finally, 1533 DEGs were screened. Among them, 43 were involved in phytohormone signaling transduction and 26 were phytohormone synthase genes. Meanwhile, 13 DEGs could regulate the polar auxin transport (PAT) and affect the tropism of roots, including the auxin influx carrier gene OsAUX2; five ATP-binding cassette (ABC) transporter family genes OsABCB4, OsABCB8, OsABCB15, OsABCB17, OsABCB21; 2 histidine kinase genes OsHK3, OsHK5; 4 flavonoid biosynthesis genes OsCHI/OsTT5, OsFLS, OsHCT1, OsCYP75B3; and the E3 ubiquitin-protein ligase gene OsWAV3. These 13 DEGs were all up-regulated by ETH. Besides, the receptor-like kinase (RLK) gene Oryza sativa Root Meander Curling (OsRMC), a negative regulator of jasmonic acid-induced ARG, was also up-regulated in ETH. The results obtained here provide a first step toward understanding the molecular mechanisms of ETH-induced ARG.
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