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Twenty years of transposable element analysis in the Arabidopsis thaliana genome | JoVE Visualize

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Twenty years of transposable element analysis in the Arabidopsis thaliana genome

Hadi Quesneville¹

¹Université Paris-Saclay, INRAE, URGI, 78026 Versailles, France.

Mobile DNA|August 4, 2020

View abstract on PubMed

Summary

Transposable elements (TEs) are mobile DNA sequences driving genome evolution. Studying the Arabidopsis genome over 20 years reveals TE families, their activity, and impact on gene expression, offering insights into plant genome dynamics.

Area of Science:

Genomics
Molecular Biology
Evolutionary Biology

Background:

Transposable elements (TEs) are mobile DNA sequences crucial for genome evolution.
Arabidopsis thaliana was the first plant genome sequenced, making it a model for TE research.

Purpose of the Study:

To review 20 years of accumulated knowledge on transposable elements in the Arabidopsis genome.
To summarize known TE families, their abundance, distribution, activity, and evolutionary dynamics.
To illustrate the role of TEs in generating new genes and influencing gene expression.

Main Methods:

Genomic analysis of Arabidopsis thaliana.
Review of accumulated data on transposable elements over two decades.

Main Results:

Comprehensive catalog of Arabidopsis TE families, their relative abundance, and genomic distribution.
Detailed insights into the activity, mobility, and evolutionary dynamics of various TE families.
Demonstration of TEs contributing to new gene formation and affecting gene expression.

Conclusions:

The Arabidopsis genome provides a rich model for understanding transposable element impact on genome evolution.
Transposable elements play significant roles in shaping plant genomes, including gene creation and regulation.
Future research directions for transposable element studies in Arabidopsis are promising.

Twenty Years Of Transposable Element Analysis In The Arabidopsis Thaliana Genome