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Related Experiment Videos

Antisense transcripts with rice full-length cDNAs.

Naoki Osato1, Hitomi Yamada, Kouji Satoh

  • 1Laboratory for Genome Exploration Research Group, RIKEN Genomic Science Center (GSC), RIKEN Yokohama Institute, Tsurumi-ku, Yokohama, Kanagawa, Japan 230-0045.

Genome Biology
|January 8, 2004
PubMed
Summary

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Researchers discovered 687 bidirectional transcript pairs in rice, indicating gene regulation by natural antisense transcripts is common in plants. Further studies are needed to explore the function of these plant antisense transcripts.

Area of Science:

  • Plant molecular biology
  • Genomics
  • Gene regulation

Background:

  • Natural antisense transcripts regulate gene expression via post-transcriptional gene silencing.
  • While common in animals, plant antisense transcript pairs are less studied.
  • Large-scale sequencing projects provide new opportunities to identify plant sense-antisense transcript pairs.

Purpose of the Study:

  • To computationally identify and characterize sense-antisense transcript pairs in rice.
  • To investigate the prevalence and potential functions of these pairs in plants.

Main Methods:

  • Utilized full-length rice cDNA sequences and public mRNA data.
  • Aligned cDNA sequences with rice genome sequences to identify transcript pairs.
  • Performed homology searches and microarray analysis to assess expression and coding potential.

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Main Results:

  • Identified 687 bidirectional transcript pairs in rice, including sense-antisense pairs.
  • Over 50% of pairs showed homology to other expressed sequence tags.
  • A significant portion of identified pairs exhibited high expression levels and coding potential.

Conclusions:

  • The substantial number of rice sense-antisense transcript pairs suggests widespread gene regulation by antisense transcripts in plants.
  • These findings highlight the importance of exploring the functional roles of plant antisense transcripts.