Biotechnology Bulletin ›› 2018, Vol. 34 ›› Issue (6): 1-10.doi: 10.13560/j.cnki.biotech.bull.1985.2017-1093

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Research Progress on Plant miR390

XIE Jie1 ,WANG Ming1 ,LI Qing1 ,PAN Fei4 ,XIONG Xing-yao3 ,QIN Yu-zhi1,2   

  1. 1. College of Horticulture and Landscape,Hunan Agricultural University,Changsha 410128;
    2. Southern Regional Collaborative Innovation Center for Grain and Oil Crops in China,Changsha 410128;
    3. Institute of Vegetables and Flowers,Chinese Academy of Agricultural Sciences,Beijing 100081;
    4. Jiangkou County Agriculture and Animal Husbandry Science and Technology Bureau of Guizhou Province,Guizhou 554400
  • Received:2017-12-20 Online:2018-06-26 Published:2018-07-03

Abstract: MicroRNAs(miRNAs),a group of highly conserved non-coding RNAs in eukaryotes,regulate target gene expression via multiple approaches of slicing target mRNA and inhibiting translation of target mRNA,i.e.,regulations of target genes are achieved at post-transcriptional level. Therefore,they play important roles in plant organ morphogenesis,growth and development,signal transduction and abiotic stress response. One of the vital miRNA family is miR390,which is an ancient and highly conserved miRNA family;its target gene,AGO7,is the basic component of RNA-induced silencing complex(RISC)that extensively is involved in cutting target mRNAs,and plays important role in plant growth,lateral organ polarity morphogenesis,floral organ morphogenesis,and stress response. The previous studies on miR390 mostly were focused on plant growth and development,while the function to abiotic stress has been little reported. This review summarizes the discovery and the types of miR390,the formation process of miR390 family,the role of miR390 family in plant growth and development,and the plant responses to abiotic stresses,such as heavy metals,drought,salt,low temperature stresses,etc.. Meanwhile,the article prospects the approaches for studying miRNAs,which is useful for comprehensively understanding the research progress of miR390 and its function in abiotic stresses in plants.

Key words: MicroRNA390, target, growth and development, abiotic stress