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Expression analysis of phytohormone‐regulated microRNAs in rice, implying their regulation roles in plant hormone signaling
Author(s) -
Liu Qing,
Zhang Yu-Chan,
Wang Cong-Ying,
Luo Yu-Chun,
Huang Qiao-Juan,
Chen Shao-Yu,
Zhou Hui,
Qu Liang-Hu,
Chen Yue-Qin
Publication year - 2009
Publication title -
febs letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.593
H-Index - 257
eISSN - 1873-3468
pISSN - 0014-5793
DOI - 10.1016/j.febslet.2009.01.020
Subject(s) - microrna , oryza sativa , plant hormone , biology , gene , microbiology and biotechnology , computational biology , gene expression , regulation of gene expression , signal transduction , genetics
Twenty‐two conserved miRNAs were chosen to investigate the expression pattern in response to phytohormone treatments, in which the effects of five classic plant hormone stresses were surveyed in Oryza sativa . The results showed that 11 miRNAs were found to be dysregulated by one or more phytohormone treatments. The target genes of these miRNAs were validated in vivo and their expression profiling were revealed. We also analyzed the promoter regions of the 22 conserved miRNAs for phytohormone‐responsive elements and the existence of the elements provided further evidences supporting our results. These findings enable us to further investigate the role of miRNAs in phytohormone signaling.