Cleavage of a non-conserved target by a specific miR156 isoform in root apexes of Medicago truncatula. - Archive ouverte HAL Access content directly
Journal Articles Plant Signaling and Behavior Year : 2010

Cleavage of a non-conserved target by a specific miR156 isoform in root apexes of Medicago truncatula.

Loreto Naya
  • Function : Author
Ghazantar Abbas Khan
  • Function : Author
Céline Sorin
  • Function : Author
Caroline Hartmann
  • Function : Author
  • PersonId : 1202639
Martin Crespi
Christine Lelandais-Brière
  • Function : Author
  • PersonId : 1355839
  • IdRef : 073427055

Abstract

Micro RNAs (miRNAs) have emerged as an important class of gene expression regulators controlling development, growth and metabolism. These short RNA molecules are 20-24 nucleotides in length and act post-transcriptionally to regulate the cleavage or translation of specific mRNA targets. In the model legume Medicago truncatula, we have recently reported identification of 100 novel and 27 conserved miRNAs in root apexes and nodules. Statistical analysis on sequencing results revealed specific miRNA isoforms for the same family (up to 3 mismatches) showing contrasting expression patterns between these tissues. Here, we report the cleavage of a non-conserved target of miR156 in root apexes complementary to a differentially expressed miR156 isoform. This suggests that changes in the abundance of miRNA isoforms may have functional consequences on the post-transcriptional regulation of new mRNA targets in different organs.

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Vegetal Biology
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Dates and versions

hal-00856232 , version 1 (30-08-2013)

Identifiers

  • HAL Id : hal-00856232 , version 1
  • PUBMED : 20200496

Cite

Loreto Naya, Ghazantar Abbas Khan, Céline Sorin, Caroline Hartmann, Martin Crespi, et al.. Cleavage of a non-conserved target by a specific miR156 isoform in root apexes of Medicago truncatula.. Plant Signaling and Behavior, 2010, 5 (3), pp.328-31. ⟨hal-00856232⟩
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