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Related Concept Videos

MicroRNAs01:22

MicroRNAs

MicroRNA (miRNA) are short, regulatory RNA transcribed from introns—non-coding regions of a gene—or intergenic regions—stretches of DNA present between genes. Several processing steps are required to form biologically active, mature miRNA. The initial transcript, called primary miRNA (pri-mRNA), base-pairs with itself forming a stem-loop structure. Within the nucleus, an endonuclease enzyme, called Drosha, shortens the stem-loop structure into hairpin-shaped pre-miRNA. After the pre-miRNA ends...
MicroRNAs01:22

MicroRNAs

MicroRNA (miRNA) are short, regulatory RNA transcribed from introns (non-coding regions of a gene) or intergenic regions (stretches of DNA present between genes). Several processing steps are required to form biologically active, mature miRNA. The initial transcript, called primary miRNA (pri-mRNA), base-pairs with itself, forming a stem-loop structure. Within the nucleus, an endonuclease enzyme, called Drosha, shortens the stem-loop structure into hairpin-shaped pre-miRNA. After the pre-miRNA...
MicroRNAs01:22

MicroRNAs

MicroRNA (miRNA) are short, regulatory RNA transcribed from introns—non-coding regions of a gene—or intergenic regions—stretches of DNA present between genes. Several processing steps are required to form biologically active, mature miRNA. The initial transcript, called primary miRNA (pri-mRNA), base-pairs with itself forming a stem-loop structure. Within the nucleus, an endonuclease enzyme, called Drosha, shortens the stem-loop structure into hairpin-shaped pre-miRNA. After the pre-miRNA ends...

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MicroRNA Amplification and Recognition through Locked-nucleic-acid In situ Hybridization as a Novel Detection and Quantification Method
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MicroRNA Amplification and Recognition through Locked-nucleic-acid In situ Hybridization as a Novel Detection and Quantification Method

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Microarray-based identification of conserved microRNAs from Pinellia ternata.

Tao Xu1, Bo Wang, Xuefeng Liu

  • 1College of Life Sciences, Zhejiang Sci-Tech University, Hangzhou 310018, China.

Gene
|December 15, 2011
PubMed
Summary
This summary is machine-generated.

This study identifies 54 microRNAs (miRNAs) in the medicinal plant Pinellia ternata using microarray and PCR methods. These findings provide a foundation for understanding miRNA functions in P. ternata development.

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Area of Science:

  • Plant molecular biology
  • Genomics
  • Biotechnology

Background:

  • MicroRNAs (miRNAs) are crucial regulators of plant development.
  • Pinellia ternata, a plant with significant medicinal value, has a poorly understood miRNA profile.
  • Limited research exists on miRNAs in P. ternata.

Purpose of the Study:

  • To identify and characterize microRNAs (miRNAs) in Pinellia ternata.
  • To establish a foundational understanding of miRNA expression in P. ternata tissues.
  • To enable future research into the functional roles of miRNAs in this species.

Main Methods:

  • Custom in situ synthesized plant miRNA microarray for high-throughput detection.
  • Reverse transcription polymerase chain reaction (RT-PCR) for miRNA presence verification.
  • Quantitative RT-PCR (qRT-PCR) for analyzing miRNA expression levels across different tissues.

Main Results:

  • Identification of 54 unique microRNAs (miRNAs) belonging to 23 distinct miRNA families.
  • Validation of microarray results for eight selected miRNAs using RT-PCR.
  • Differential expression of eleven miRNAs detected across P. ternata tissues, with notable high expression of miRNA319 in tubers.

Conclusions:

  • This study presents the first comprehensive report on miRNAs in Pinellia ternata.
  • The identified miRNAs and their expression patterns offer valuable insights into P. ternata biology.
  • This foundational work paves the way for investigating miRNA-mediated regulatory mechanisms in P. ternata development and its medicinal properties.