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The microRNA156 and microRNA172 gene regulation cascades at post-germinative stages in Arabidopsis
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Martin, Ruth C., Asahina, Masashi, Liu, Po-Pu, Kristof, Jessica R., Coppersmith, Jennifer L., Pluskota, Wioletta E., Bassel, George, Goloviznina, Natalya A., Nguyen, Theresa T., Martínez-Andújar, Cristina, Arun Kumar, M.B., Pupel, Piotr and Nonogaki, Hiroyuki (2010) The microRNA156 and microRNA172 gene regulation cascades at post-germinative stages in Arabidopsis. Seed Science Research, 20 (2). pp. 79-87. doi:10.1017/S0960258510000085 ISSN 0960-2585.
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Official URL: http://dx.doi.org/10.1017/S0960258510000085
Abstract
MicroRNAs (miRNAs) are involved in developmental programmes of plants, including seed germination and post-germination. Here, we provide evidence that two different miRNA pathways, miR156 and miR172, interact during the post-germination stages in Arabidopsis. Mutant seedlings expressing miR156-resistant SQUAMOSA PROMOTER-BINDING PROTEIN-LIKE13 (mSPL13), which has silent mutations in the miR156 complementary sequence, over-accumulated SPL13 mRNA and exhibited a delay in seedling development. Microarray analysis indicated that SCHNARCHZAPFEN (SNZ), an AP2-like gene targeted by miR172, was down-regulated in these mutants. Quantitative reverse transcription-polymerase chain reaction (RT-PCR) and miRNA gel blot analyses showed that the MIR172 genes were up-regulated in mSPL13 mutants. These results suggest that the miRNA regulation cascades (miR156⊣SPL13 → miR172⊣SNZ) play a critical role during the post-germination developmental stages in Arabidopsis.
Item Type: | Journal Article | ||||
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Divisions: | Faculty of Science, Engineering and Medicine > Science > Life Sciences (2010- ) | ||||
Journal or Publication Title: | Seed Science Research | ||||
Publisher: | Cambridge University Press | ||||
ISSN: | 0960-2585 | ||||
Official Date: | 2010 | ||||
Dates: |
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Volume: | 20 | ||||
Number: | 2 | ||||
Page Range: | pp. 79-87 | ||||
DOI: | 10.1017/S0960258510000085 | ||||
Status: | Peer Reviewed | ||||
Publication Status: | Published | ||||
Access rights to Published version: | Restricted or Subscription Access |
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