Biotechnology Bulletin ›› 2018, Vol. 34 ›› Issue (8): 17-26.doi: 10.13560/j.cnki.biotech.bull.1985.2018-0002

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Research Progress on microRNA in Landscape Plants

LUO Xiao-ning, ZHAI Li-juan, LI Xiang, SHI Qian-qian, ZHANG Yan-long   

  1. College of Landscape Architecture and Arts,Northwest Agriculture and Forestry University,Yangling 712100
  • Received:2017-12-31 Online:2018-08-26 Published:2018-09-04

Abstract: MicroRNA(miRNA)is one of the main type of non-coding small RNA with 19-24 nucleotides(nt). miRNA can negatively regulate target gene expression levels at post-transcription levels through three patterns of cutting,translation inhibition and DNA methylation. They are widely existing in organisms and playing important regulatory roles in plant growth and development,as well as responses to environmental stimuli. Few studies on the miRNA in landscape plants have been carried out,but some achievements have been made. Previous studies show that miRNAs can not only participate in the embryonic development,leaf development,branch development,flower development,fruit development and developmental timing change of landscape plants,but also regulate their secondary metabolisms and signal transductions. In addition,many miRNAs in landscape plants play key roles in the sense and adaptation to biotic and abiotic stresses. This paper reviews the biosynthesis and function mechanism of miRNA in plants,focusing on the biological functions of miRNA in development,secondary metabolism and signal transduction,stress in landscape plants. This is aimed to provide the reference for the further research of miRNA in landscape plants.

Key words: miRNA, landscape plants, development, secondary metabolism, stress