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Related Concept Videos

Gene Conversion02:08

Gene Conversion

Other than maintaining genome stability via DNA repair, homologous recombination plays an important role in diversifying the genome. In fact, the recombination of sequences forms the molecular basis of genomic evolution. Random and non-random permutations of genomic sequences create a library of new amalgamated sequences. These newly formed genomes can determine the fitness and survival of cells. In bacteria, homologous and non-homologous types of recombination lead to the evolution of new...
Gene Conversion02:08

Gene Conversion

Other than maintaining genome stability via DNA repair, homologous recombination plays an important role in diversifying the genome. In fact, the recombination of sequences forms the molecular basis of genomic evolution. Random and non-random permutations of genomic sequences create a library of new amalgamated sequences. These newly formed genomes can determine the fitness and survival of cells. In bacteria, homologous and non-homologous types of recombination lead to the evolution of new...
Exon Recombination02:32

Exon Recombination

The evolution of new genes is critical for speciation. Exon recombination, also known as exon shuffling or domain shuffling, is an important means of new gene formation. It is observed across vertebrates, invertebrates, and in some plants such as potatoes and sunflowers. During exon recombination, exons from the same or different genes recombine and produce new exon-intron combinations, which might evolve into new genes. 
Exon shuffling follows “splice frame rules.” Each exon has three reading...
Gene Duplication and Divergence02:37

Gene Duplication and Divergence

The seminal work of Ohno in 1970 popularized the idea of gene duplication and divergence. DNA sequence comparison studies reveal that a large portion of the genes in bacteria, archaebacteria, and eukaryotes was  generated by gene duplication and divergence, indicating its critical role in evolution.
The duplicated copies of the gene are called Paralogs. Paralogs with similar sequences and functions form a gene family. Across several species, a large number of gene families are characterized.
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...
Mutation, Gene Flow, and Genetic Drift01:09

Mutation, Gene Flow, and Genetic Drift

In a population that is not at Hardy-Weinberg equilibrium, the frequency of alleles changes over time. Therefore, any deviations from the five conditions of Hardy-Weinberg equilibrium can alter the genetic variation of a given population. Conditions that change the genetic variability of a population include mutations, natural selection, non-random mating, gene flow, and genetic drift (small population size).Mechanisms of Genetic VariationThe original sources of genetic variation are mutations,...

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Related Experiment Video

Updated: Jun 16, 2026

Analysis of LINE-1 Retrotransposition at the Single Nucleus Level
11:52

Analysis of LINE-1 Retrotransposition at the Single Nucleus Level

Published on: April 23, 2016

A pattern analysis of gene conversion literature.

Mark J Lawson1, Jian Jiao, Weiguo Fan

  • 1Department of Computer Science, Virginia Tech, Blacksburg, VA 24061, USA.

Comparative and Functional Genomics
|February 12, 2010
PubMed
Summary
This summary is machine-generated.

Gene conversion, the transfer of genetic information between genes, significantly impacts organisms. Analyzing over 3,000 abstracts reveals key trends and highlights the necessity of ongoing gene conversion research.

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Area of Science:

  • Molecular Biology
  • Genetics
  • Bioinformatics

Background:

  • Gene conversion is a fundamental biological mechanism.
  • It facilitates the transfer of genetic (sequence) information between genes.
  • This process can lead to diverse short-term and long-term effects, both beneficial and harmful, within an organism.

Purpose of the Study:

  • To better understand the biological process of gene conversion.
  • To identify and analyze trends in gene conversion research.
  • To underscore the significance of gene conversion in genetic research.

Main Methods:

  • Systematic literature review of over 3,000 abstracts on gene conversion.
  • Data extraction and tagging of key information from research abstracts.
  • Trend analysis of extracted data to gain insights into gene conversion research.

Main Results:

  • Identification of significant trends in gene conversion research.
  • Demonstration of the critical role of gene conversion in biological systems.
  • Highlighting the importance of continued investigation into gene conversion mechanisms.

Conclusions:

  • Gene conversion is a vital biological process with broad implications.
  • The analysis of gene conversion research provides valuable insights into genetic mechanisms.
  • Continued research in gene conversion is crucial for advancing genetic understanding.