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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...
DNA-only Transposons02:57

DNA-only Transposons

DNA-only transposons are called autonomous transposons since they code for the enzyme transposase that is required for the transposition mechanism. Insertion of transposons can alter gene functions in multiple ways. They can mutate the gene, alter gene expression by introducing a novel promoter or insulator sequence, introduce new splice sites, and change the mRNA transcripts produced, or remodel chromatin structure.
The donor site from where the transposon is excised is either degraded or...
Transposons01:24

Transposons

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...
Non-LTR Retrotransposons03:18

Non-LTR Retrotransposons

As the name suggests, non-LTR retrotransposons lack the long terminal repeats characteristic of the LTR retrotransposons. Additionally, both LTR and non-LTR retrotransposons use distinct mechanisms of mobilization. Non-LTR retrotransposons are further divided into two classes - Long interspersed nuclear elements (LINEs) and short interspersed nuclear elements (SINEs), both of which occur abundantly in most mammals, including humans. Some of the active non-LTR retrotransposons in humans are L1...
LTR Retrotransposons03:08

LTR Retrotransposons

LTR retrotransposons are class I transposable elements with long terminal repeats flanking an internal coding region. These elements are less abundant in mammals compared to other class I transposable elements. About 8 percent of human genomic DNA comprises LTR retrotransposons. Some of the common examples of LTR retrotransposons are Ty elements in yeast and Copia elements in Drosophila.
The internal coding region of LTR retrotransposons and their mechanism of transposition closely resembles a...
Epistasis Analysis01:09

Epistasis Analysis

Although Mendel chose seven unrelated traits in peas to study gene segregation, most traits involve multiple gene interactions that create a spectrum of phenotypes. When the interaction of various genes or alleles at different locations influences a phenotype, this is called epistasis. Epistasis often involves one gene masking or interfering with the expression of another (antagonistic epistasis). Epistasis often occurs when different genes are part of the same biochemical pathway. The...

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Related Experiment Video

Updated: Jun 2, 2026

Real-Time Quantification of the Effects of IS200/IS605 Family-Associated TnpB on Transposon Activity
04:04

Real-Time Quantification of the Effects of IS200/IS605 Family-Associated TnpB on Transposon Activity

Published on: January 20, 2023

Transposable element analysis in OMICS data.

Braulio Valdebenito-Maturana1

  • 1Department of Epidemiology and Biostatistics, Computational Oncology Service, Memorial Sloan Kettering Cancer Center, New York, NY, United States.

Advances in Genetics
|June 1, 2026
PubMed
Summary
This summary is machine-generated.

Transposable Elements (TEs) are mobile DNA sequences found in all eukaryotic genomes. This chapter provides a framework for analyzing TEs using OMICS data, aiding research into their biological roles.

Keywords:
Gene regulationGenome evolutionOMICSSequencingTransposable elements

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Area of Science:

  • Genomics
  • Molecular Biology
  • Bioinformatics

Background:

  • Transposable Elements (TEs) are ubiquitous in eukaryotic genomes, influencing population diversity and gene regulation.
  • OMICS technologies offer genome-wide insights into TE biology.
  • The repetitive nature of TEs complicates their routine analysis.

Purpose of the Study:

  • To provide a theoretical framework for understanding Transposable Elements (TEs).
  • To offer an overview of TE analysis methods across various OMICS data types.
  • To equip researchers with the background needed to study TE contributions in health and disease.

Main Methods:

  • Review of theoretical concepts for TE analysis.
  • Overview of established bioinformatics pipelines for OMICS data.
  • Discussion of advantages and disadvantages of different TE analysis approaches.

Main Results:

  • A foundational understanding of Transposable Elements (TEs) and their biological significance.
  • A comprehensive overview of current methodologies for analyzing TEs in OMICS datasets.
  • Identification of challenges and benefits associated with different analytical strategies.

Conclusions:

  • Researchers can gain insights into TE biology without drastically altering existing analysis pipelines.
  • This work facilitates further exploration of the multifaceted roles of TEs in eukaryotic organisms.
  • Understanding TEs is crucial for advancing research in both healthy and diseased states.