TY - JOUR
T1 - The microRNA156 and microRNA172 gene regulation cascades at post-germinative stages in Arabidopsis
AU - Martin, R.C.
AU - Asahina, M.
AU - Liu, P.-P.
AU - Kristof, J.R.
AU - Coppersmith, J.L.
AU - Pluskota, W.E.
AU - Bassel, G.W.
AU - Goloviznina, N.A.
AU - Nguyen, T.T.
AU - Martínez-Andújar, C.
AU - Arun Kumar, M.B.
AU - Pupel, P.
AU - Nonogaki, H.
N1 - Copyright 2010 Elsevier B.V., All rights reserved.
PY - 2010/6/1
Y1 - 2010/6/1
N2 - 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 (miR156SPL13miR172SNZ) play a critical role during the post-germination developmental stages in Arabidopsis.
AB - 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 (miR156SPL13miR172SNZ) play a critical role during the post-germination developmental stages in Arabidopsis.
UR - http://www.scopus.com/inward/record.url?partnerID=yv4JPVwI&eid=2-s2.0-77952486402&md5=2e63633f4549faf1a7806ec3dcaf89fd
U2 - 10.1017/S0960258510000085
DO - 10.1017/S0960258510000085
M3 - Article
AN - SCOPUS:77952486402
SN - 0960-2585
VL - 20
SP - 79
EP - 87
JO - Seed Science Research
JF - Seed Science Research
IS - 2
ER -