Poretti, Manuel and Praz, Coraline Rosalie and Meile, Lucas and Kälin, Carol and Schaefer, Luisa Katharina and Schäfli, Michael and Widrig, Victoria and Sanchez-Vallet, Andrea and Wicker, Thomas and Bourras, Salim
(2020).
Domestication of high-copy transposons underlays the wheat small RNA response to an obligate pathogen.
Molecular Biology and Evolution. 37
, 839–848
[Research article]
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Abstract
Plant genomes have evolved several evolutionary mechanisms to tolerate and make use of transposable elements (TEs).
Of these, transposon domestication into cis-regulatory and microRNA (miRNA) sequences is proposed to contribute to
abiotic/biotic stress adaptation in plants. The wheat genome is derived at 85% from TEs, and contains thousands of
miniature inverted-repeat transposable elements (MITEs), whose sequences are particularly prone for domestication into
miRNA precursors. In this study, we investigate the contribution of TEs to the wheat small RNA immune response to the
lineage-specific, obligate powdery mildew pathogen. We show that MITEs of the Mariner superfamily contribute the
largest diversity of miRNAs to the wheat immune response. In particular, MITE precursors of miRNAs are wide-spread
over the wheat genome, and highly conserved copies are found in the Lr34 and QPm.tut-4A mildew resistance loci. Our
work suggests that transposon domestication is an important evolutionary force driving miRNA functional innovation in
wheat immunity.
| Authors/Creators: | Poretti, Manuel and Praz, Coraline Rosalie and Meile, Lucas and Kälin, Carol and Schaefer, Luisa Katharina and Schäfli, Michael and Widrig, Victoria and Sanchez-Vallet, Andrea and Wicker, Thomas and Bourras, Salim | ||||
|---|---|---|---|---|---|
| Title: | Domestication of high-copy transposons underlays the wheat small RNA response to an obligate pathogen | ||||
| Series Name/Journal: | Molecular Biology and Evolution | ||||
| Year of publishing : | 2020 | ||||
| Volume: | 37 | ||||
| Page range: | 839–848 | ||||
| Number of Pages: | 10 | ||||
| Publisher: | Oxford University Press | ||||
| ISSN: | 0737-4038 | ||||
| Language: | English | ||||
| Publication Type: | Research article | ||||
| Article category: | Scientific peer reviewed | ||||
| Version: | Published version | ||||
| Copyright: | Creative Commons: Attribution-Noncommercial 4.0 | ||||
| Full Text Status: | Public | ||||
| Subjects: | (A) Swedish standard research categories 2011 > 1 Natural sciences > 106 Biological Sciences (Medical to be 3 and Agricultural to be 4) > Genetics (medical genetics to be 30107 and agricultural genetics to be 40402) (A) Swedish standard research categories 2011 > 1 Natural sciences > 106 Biological Sciences (Medical to be 3 and Agricultural to be 4) > Evolutionary Biology | ||||
| Keywords: | wheat, transposable elements, small RNAs, powdery mildew | ||||
| URN:NBN: | urn:nbn:se:slu:epsilon-p-103117 | ||||
| Permanent URL: | http://urn.kb.se/resolve?urn=urn:nbn:se:slu:epsilon-p-103117 | ||||
| Additional ID: |
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| ID Code: | 16766 | ||||
| Faculty: | NJ - Fakulteten för naturresurser och jordbruksvetenskap | ||||
| Department: | (NL, NJ) > Dept. of Forest Mycology and Plant Pathology (S) > Dept. of Forest Mycology and Plant Pathology | ||||
| Deposited By: | SLUpub Connector | ||||
| Deposited On: | 18 May 2020 11:51 | ||||
| Metadata Last Modified: | 18 May 2020 11:51 |
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