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lncRNA - Long Non-coding RNAs02:39

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In humans, more than 80% of the genome gets transcribed. However, only around 2% of the genome codes for proteins. The remaining part produces non-coding RNAs which includes ribosomal RNAs, transfer RNAs, telomerase RNAs, and regulatory RNAs, among other types. A large number of regulatory non-coding RNAs have been classified into two groups depending upon their length – small non-coding RNAs, such as microRNA, which are less than 200 nucleotides in length, and long non-coding RNA...
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Determination of DNA Methylation of Imprinted Genes in Arabidopsis Endosperm
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Noncoding RNAs and DNA Methylation in Plants.

Yuanyuan Zhao1, Xuemei Chen2

  • 1Department of Botany and Plant Sciences, Institute of Integrative Genome Biology, University of California, Riverside, CA 92521.

National Science Review
|January 31, 2015
PubMed
Summary
This summary is machine-generated.

Cytosine DNA methylation, an epigenetic process, is vital for genome stability and gene regulation in eukaryotes. Recent research reveals complex plant DNA methylation pathways involving proteins and non-coding RNAs.

Keywords:
DNA methylationPol IVPol Vargonautenon-coding RNAsiRNA

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Area of Science:

  • Epigenetics
  • Molecular Biology
  • Plant Science

Background:

  • Cytosine DNA methylation is a crucial epigenetic mechanism in eukaryotes.
  • It plays a key role in maintaining genome integrity and regulating gene expression.
  • Plant DNA methylation patterns are notably complex, with both shared and unique regulatory pathways compared to animals.

Purpose of the Study:

  • To summarize recent advancements in understanding DNA methylation in plants.
  • To highlight the complex regulatory mechanisms governing DNA methylation in plants.
  • To underscore the roles of various proteins and non-coding RNAs in this process.

Main Methods:

  • Genetic approaches
  • Molecular biology techniques
  • Biochemical assays
  • Genomic analyses

Main Results:

  • Significant expansion of knowledge regarding plant DNA methylation.
  • Identification of numerous proteins involved in DNA methylation regulation.
  • Uncovering the roles of non-coding RNAs in plant DNA methylation.

Conclusions:

  • Plant DNA methylation is a complex epigenetic process with unique regulatory features.
  • Proteins and non-coding RNAs are key players in plant DNA methylation.
  • Ongoing research continues to elucidate these intricate mechanisms.