Transcriptomics analyses reveal that OsMIOX improves rice drought tolerance by regulating the expression of plant hormone and sugar related genes
文献类型： 外文期刊
作者： Shi, Fachao 1 ; Dong, Yijie 2 ; Wang, Min 3 ; Qiu, Dewen 2 ;
作者机构： 1.Guangdong Engn Res Ctr Pesticide & Fertilizer, Guangdong Prov Bioengn Inst, Guangzhou Sugarcane Ind Res Inst, Guangzhou 510316, Peoples R China
2.Chinese Acad Agr Sci, Inst Plant Protect, Key Lab Biol Control, Minist Agr, Beijing 100081, Peoples R China
3.Guangdong Acad Agr Sci, Vegetable Res Inst, Guangzhou 510640, Peoples R China
关键词： Overexpression; OsMIOX; Rice; Drought resistance; RNA-seq
期刊名称：PLANT BIOTECHNOLOGY REPORTS （ 影响因子：2.01； 五年影响因子：1.907 ）
ISSN： 1863-5466
年卷期：
页码：
收录情况： SCI
摘要： Drought stress, as a key negative factor, could result in the reduction of yield and quality in rice. Myo-inositol oxygenase (MIOX), a unique monooxygenase, exerts an essential role in plant drought resistance. To investigate the function of the OsMIOX gene in drought process, a transcriptomic profile between OsMIOX-overexpressing (OE) plants and wild-type (WT) was performed by RNA-sequencing in rice. Under drought stress, a total of 23 million high-quality reads, assembled into 28,552 unigenes, were generated and 743 genes (534 up-regulated and 209 down-regulated) were significantly differentially expressed between OE plants and WT. These detected genes were mainly associated with plant hormones transduction and sugar metabolism. Interestingly, several transcription factors (TFs) were prominently identified in OE lines. A significant positive correlation between RNA-Seq data and qRT-PCR results was identified. In all, our results could partially provide relatively valuable clues in identifying candidate genes involved in drought-stress resistance and elucidating basis theory underlying the role of OsMIOX in drought resistance.
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