Biotechnology Bulletin ›› 2019, Vol. 35 ›› Issue (11): 141-149.doi: 10.13560/j.cnki.biotech.bull.1985.2019-0526

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Research Progress of microRNA in Plant Development

HUANG Jun-jun, LIU Wen-wen, GUO Ya-ru, JIANG Tian-hui, REN Qing, WANG Hua-hua, LIANG Wei-hong   

  1. College of Life Science,Henan Normal University,Xinxiang 453007
  • Received:2019-06-17 Online:2019-11-26 Published:2019-11-19

Abstract: microRNA(miRNA)is a type of endogenous non-coding small RNA that is widely present in plants and is about 20-25 nucleotides long. By degrading the target gene mRNA and inhibiting its translation,the expression of the targeted gene is controlled at the post-transcriptional level and thus a variety of biological functions,including plant growth and development,reproduction and stress response,were regulated. Previous studies have shown that miRNA and its target genes are not only a key regulator in plant timing transformation,but also play an important regulatory role in shoot tip development,leaf morphogenesis,floral organ development and flowering time. This review focuses on the latest research progress of miRNAs in regulating plant growth and development and developmental plasticity,and explores and prospects the need-to-be clarified issues in the studies of plant miRNAs,aiming to provide a reference for deeply analyzing miRNAs in regulating plant tissues and organ patterns,and the role of them in plant morphological diversity and molecular regulatory networks.

Key words: plant, miRNA, regulation, growth and development