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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 발행연도
- 2016.1
- 수록면
- 377 - 387 (11page)
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MicroRNAs (miRNAs) are non-coding singlestranded RNAs of appropriately 21 nucleotides in length that negatively regulate post-transcriptional processes in plants and animals. In recent years, while an increasing number of miRNAs has been identified in various species, little is known regarding the specific transcriptional regulation of miRNAs in Populus. In this investigation, 368 miRNAs belonging to 37 miRNA families in Populus were analyzed to identify promoter regions and predict the distribution patterns of core promoter elements [TATA boxes and transcription start sites (TSSs)], as well as main cisacting elements through a bioinformatics approach. A total of 368 precursor miRNA (pre-miRNA) gene loci belonging to 213 unique miRNAs were detected. We identified 229 promoters and further predicted 121 TSSs and TATA boxes for 139 pre-miRNAs. The conserved motifs, base composition and the average free energy profiles in the neighboring regions of TSSs were further analyzed. In addition, 101 types of cis-acting elements, such as anaerobic induction elements, abscisic acid-response elements, and MYB binding sites, were predicted in the predicted promoter regions of the pre-miRNAs. The data obtained in our investigation may aid in the analysis of specific upstream sequences of pre-miRNAs for differential expression and further our understanding of the molecular biology of miRNAs in Populus.
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참고문헌 (50)
참고문헌 신청
Allawi HT / 1997 / Thermodynamics and NMR of internal G.T mismatches in DNA / Biochemistry 36:10581~10594
Alonso-Peral MM / 2010 / The microRNA159-regulated GAMYB-like genes inhibit growth and promote programmed cell death in Arabidopsis / Plant Physiol 154:757~771
Bartel DP / 2004 / MicroRNAs: genomics, biogenesis, mechanism, and function / Cell 116:281~297
Brodersen P / 2008 / Widespread translational inhibition by plant miRNAs and siRNAs / Science 320:1185~1190
Chen L / 2012 / Genome-wide identification and expression analysis of heatresponsive and novel microRNAs in Populus tomentosa / Gene 504:160~165
Alonso-Peral MM / 2010 / The microRNA159-regulated GAMYB-like genes inhibit growth and promote programmed cell death in Arabidopsis / Plant Physiol 154:757~771
Bartel DP / 2004 / MicroRNAs: genomics, biogenesis, mechanism, and function / Cell 116:281~297
Brodersen P / 2008 / Widespread translational inhibition by plant miRNAs and siRNAs / Science 320:1185~1190
Chen L / 2012 / Genome-wide identification and expression analysis of heatresponsive and novel microRNAs in Populus tomentosa / Gene 504:160~165
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