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Related Concept Videos

Overview of Transposition and Recombination02:13

Overview of Transposition and Recombination

Transposons make up a significant part of genomes of various organisms. Therefore, it is believed that transposition played a major evolutionary role in speciation by changing genome sizes and modifying gene expression patterns. For example, in bacteria, transposition can lead to conferring antibiotic resistance. Movement of transposable elements within the genetic pool of pathogenic bacteria can aid in transfer of antibiotic-resistant genetic elements. In eukaryotes, transposons can carry out...
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Transposons, or "jumping genes," are small mobile genetic elements (MGEs) that range from 700 to 40,000 base pairs in length. They are found in all organisms and can move within the same chromosome or transfer to different chromosomes. In some cases, transposons can also jump between different host DNA molecules, such as plasmids or viruses, contributing to genetic variability.Barbara McClintock first discovered these mobile genetic elements in the 1940s while studying maize genetics, and she...
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Genetic Mapping of Thermotolerance Differences Between Species of Saccharomyces Yeast via Genome-Wide Reciprocal Hemizygosity Analysis
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Transposable elements in yeasts.

Claudine Bleykasten-Grosshans1, Cécile Neuvéglise

  • 1CNRS UMR 7156, Laboratoire Génétique Moléculaire Génomique Microbiologie, Université de Strasbourg, 28 rue Goethe, 67083 Strasbourg cedex, France. bleykasten@unistra.fr

Comptes Rendus Biologies
|August 9, 2011
PubMed
Summary
This summary is machine-generated.

Transposable elements (TEs) are key drivers of yeast genome evolution, influencing gene expression and stability. This review explores their diversity, abundance, and impact across various yeast species.

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Area of Science:

  • Genomics
  • Molecular Biology
  • Evolutionary Biology

Background:

  • Recent advancements in sequencing technologies have enabled comprehensive analysis of yeast genomes.
  • Transposable elements (TEs) are mobile genetic sequences found in most eukaryotes, including yeasts.
  • While TEs constitute a small fraction of yeast genomes, they play a significant role in genome dynamics.

Purpose of the Study:

  • To review and assess the transposable element (TE) content in yeast genomes.
  • To analyze the diversity and abundance of TEs within and between yeast species.
  • To examine the impact of TEs on gene expression, genome stability, and TE-host interactions.

Main Methods:

  • Literature review of studies investigating yeast genome sequences and TE content.
  • Comparative analysis of TE diversity and abundance across different yeast species.
  • Synthesis of findings on the functional consequences of TE activity.

Main Results:

  • Yeast genomes harbor diverse and abundant transposable elements.
  • TEs exhibit significant variation in distribution and copy number at both inter- and intraspecific levels.
  • Transposable elements influence gene expression patterns and contribute to genome instability.

Conclusions:

  • Transposable elements are crucial for shaping yeast genome structure and evolution.
  • Understanding TE-host interactions provides insights into genome plasticity and adaptation.
  • Further research on TEs in yeast is essential for a complete picture of eukaryotic genome evolution.