Validation and characterization of <it>Citrus sinensis</it> microRNAs and their target genes

<p>Abstract</p> <p>Background</p> <p>MicroRNAs play vital role in plant growth and development by changeable expression of their target genes with most plant microRNAs having perfect or near-perfect complementarities with their target genes but miRNAs in <it>Citru...

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Main Authors: Song Changnian, Yu Mingliang, Han Jian, Wang Chen, Liu Hong, Zhang Yanping, Fang Jinggui
Format: Article
Language:English
Published: BMC 2012-05-01
Series:BMC Research Notes
Online Access:http://www.biomedcentral.com/1756-0500/5/235
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author Song Changnian
Yu Mingliang
Han Jian
Wang Chen
Liu Hong
Zhang Yanping
Fang Jinggui
author_facet Song Changnian
Yu Mingliang
Han Jian
Wang Chen
Liu Hong
Zhang Yanping
Fang Jinggui
author_sort Song Changnian
collection DOAJ
description <p>Abstract</p> <p>Background</p> <p>MicroRNAs play vital role in plant growth and development by changeable expression of their target genes with most plant microRNAs having perfect or near-perfect complementarities with their target genes but miRNAs in <it>Citrus sinensis</it> (csi-miRNAs) and their function have not been widely studied.</p> <p>Findings</p> <p>In this study, 15 potential microRNAs in <it>Citrus sinensis</it> (csi-miRNAs) were identified and bioinformatically validated using miR-RACE, a newly developed method for determination of miRNAs prediction computationally. The expression of these fifteen <it>C. sinensis</it> miRNAs can be detected in leaves, stems, flowers and fruits of <it>C. sinensis</it> by QRT-PCR with some of them showed tissue-specific expression. Six potential target genes were identified for six csi-miRNAs and also experimentally verified by Poly (A) polymerase -mediated 3′ rapid amplification of cDNA ends (PPM-RACE) and RNA ligase-mediated 5′ rapid amplification of cDNA ends (RLM-RACE) which mapped the cleavage site of target mRNAs and detected expression patterns of cleaved fragments that indicate the regulatory function of the miRNAs on their target genes.</p> <p>Conclusions</p> <p>Our results confirm that small RNA-mediated regulation whereby all csi-miRNAs regulate their target genes by degradation.</p>
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spelling doaj.art-c9ea9d37903c4b2d85783f87988f3e512022-12-21T20:55:53ZengBMCBMC Research Notes1756-05002012-05-015123510.1186/1756-0500-5-235Validation and characterization of <it>Citrus sinensis</it> microRNAs and their target genesSong ChangnianYu MingliangHan JianWang ChenLiu HongZhang YanpingFang Jinggui<p>Abstract</p> <p>Background</p> <p>MicroRNAs play vital role in plant growth and development by changeable expression of their target genes with most plant microRNAs having perfect or near-perfect complementarities with their target genes but miRNAs in <it>Citrus sinensis</it> (csi-miRNAs) and their function have not been widely studied.</p> <p>Findings</p> <p>In this study, 15 potential microRNAs in <it>Citrus sinensis</it> (csi-miRNAs) were identified and bioinformatically validated using miR-RACE, a newly developed method for determination of miRNAs prediction computationally. The expression of these fifteen <it>C. sinensis</it> miRNAs can be detected in leaves, stems, flowers and fruits of <it>C. sinensis</it> by QRT-PCR with some of them showed tissue-specific expression. Six potential target genes were identified for six csi-miRNAs and also experimentally verified by Poly (A) polymerase -mediated 3′ rapid amplification of cDNA ends (PPM-RACE) and RNA ligase-mediated 5′ rapid amplification of cDNA ends (RLM-RACE) which mapped the cleavage site of target mRNAs and detected expression patterns of cleaved fragments that indicate the regulatory function of the miRNAs on their target genes.</p> <p>Conclusions</p> <p>Our results confirm that small RNA-mediated regulation whereby all csi-miRNAs regulate their target genes by degradation.</p>http://www.biomedcentral.com/1756-0500/5/235
spellingShingle Song Changnian
Yu Mingliang
Han Jian
Wang Chen
Liu Hong
Zhang Yanping
Fang Jinggui
Validation and characterization of <it>Citrus sinensis</it> microRNAs and their target genes
BMC Research Notes
title Validation and characterization of <it>Citrus sinensis</it> microRNAs and their target genes
title_full Validation and characterization of <it>Citrus sinensis</it> microRNAs and their target genes
title_fullStr Validation and characterization of <it>Citrus sinensis</it> microRNAs and their target genes
title_full_unstemmed Validation and characterization of <it>Citrus sinensis</it> microRNAs and their target genes
title_short Validation and characterization of <it>Citrus sinensis</it> microRNAs and their target genes
title_sort validation and characterization of it citrus sinensis it micrornas and their target genes
url http://www.biomedcentral.com/1756-0500/5/235
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AT wangchen validationandcharacterizationofitcitrussinensisitmicrornasandtheirtargetgenes
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