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Alleles are different forms of the same gene. Humans and other diploid organisms inherit two alleles of every gene, one from each parent.
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A Reverse Genetic Approach to Test Functional Redundancy During Embryogenesis
06:59

A Reverse Genetic Approach to Test Functional Redundancy During Embryogenesis

Published on: August 11, 2010

TEs or not TEs? That is the evolutionary question.

Keren Vaknin1, Amir Goren, Gil Ast

  • 1Department of Human Molecular Genetics and Biochemistry, Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv 69987, Israel. uakninke@post.tau.ac.il

Journal of Biology
|October 30, 2009
PubMed
Summary
This summary is machine-generated.

Transposable elements (TEs) can generate new transcripts by inserting upstream of retrocopies. These insertions play a role in tissue-specific gene regulation after transcription.

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Area of Science:

  • Genomics
  • Molecular Biology
  • Gene Regulation

Background:

  • Transposable elements (TEs) are mobile DNA sequences that can alter host genomes.
  • TEs have historically contributed functional sequences to genomes.
  • Understanding the regulatory roles of TEs is crucial for genome evolution studies.

Purpose of the Study:

  • To investigate the role of transposable element insertions in generating new transcripts.
  • To explore the involvement of TE insertions in post-transcriptional regulation.
  • To analyze the tissue-specific nature of TE-mediated gene regulation.

Main Methods:

  • Analysis of genomic data to identify TE insertions upstream of retrocopies.
  • Transcriptomic analysis to detect novel transcripts originating from TE insertions.
  • Comparative analysis to assess tissue-specific expression patterns.

Main Results:

  • Demonstrated that transposable element insertions upstream of retrocopies can create novel transcripts.
  • Identified specific instances where these TE-driven transcripts are subject to tissue-specific post-transcriptional regulation.
  • Provided evidence for TEs contributing to regulatory complexity in host genomes.

Conclusions:

  • Transposable elements are a source of novel transcripts and regulatory elements.
  • TE insertions can lead to sophisticated tissue-specific gene regulation.
  • This mechanism highlights the dynamic and adaptive nature of genomes shaped by TEs.