Validation and characterization of Citrus sinensis microRNAs and their target genes.

BMC Research Notes
Changnian SongJinggui Fang

Abstract

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 Citrus sinensis (csi-miRNAs) and their function have not been widely studied. In this study, 15 potential microRNAs in Citrus sinensis (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 C. sinensis miRNAs can be detected in leaves, stems, flowers and fruits of C. sinensis 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. Our results confirm that small RNA-mediated regulation whereby all csi-miRNAs regulate their target genes by degradation.

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Citations

Feb 25, 2018·Applied Biochemistry and Biotechnology·Swati SrivastavaAshok Sharma
Nov 4, 2016·G3 : Genes - Genomes - Genetics·Daniel Gonzalez-IbeasJill L Wegrzyn
Apr 30, 2020·Functional Plant Biology : FPB·Qiuwei LuJing Cang
Mar 20, 2021·Frontiers in Plant Science·Neeti Sanan-MishraSunil K Mukherjee
May 19, 2021·Biotechnology and Bioengineering·Hui ZhouBu-Jun Shi

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Methods Mentioned

BETA
PCR

Software Mentioned

LinRegPCR
Illumina
Gene
Harvest Blast Search
Blast
Rotor
BLASTn
BLASTx
Citrus Harvest

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