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Related Concept Videos

Epistasis01:39

Epistasis

In addition to multiple alleles at the same locus influencing traits, numerous genes or alleles at different locations may interact and influence phenotypes in a phenomenon called epistasis. For example, rabbit fur can be black or brown depending on whether the animal is homozygous dominant or heterozygous at a TYRP1 locus. However, if the rabbit is also homozygous recessive at a locus on the tyrosinase gene (TYR), it will have an unshaded coat that appears white, regardless of its TYRP1...
Lethal Alleles02:41

Lethal Alleles

Agouti: A Lethal Allele
Lucien Cuénot discovered lethal alleles in 1905 while studying the inheritance of coat color in mice. The agouti gene is responsible for the color of the coat in mice. This gene codes for an agouti-signaling protein, which is responsible for melanin distribution in mammals. The wild-type allele gives rise to gray-brown coat color in mice, while the mutant allele gives rise to yellow coat color. In addition to coat color, the agouti gene is associated with the yellow...
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Mouse Models of Cancer Study

Mice have long served as models for studying human biology and pathology because of their phylogenetic and physiological similarity with humans. They are also easy to maintain and breed in the laboratory, and hence, many inbred strains are now available for research. Studies on mice have contributed immeasurably to our understanding of cancer biology.
The development of transgenic, knockout, and knock-in mice has led to an exponential increase in their use as model organisms in research,...

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Mutant laboratory mice with abnormalities in pigmentation: annotated tables.

Motonobu Nakamura1, Desmond J Tobin, Beverly Richards-Smith

  • 1Department of Dermatology, University Hospital Eppendorf, University of Hamburg, Germany.

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Researchers are using mutant mice to study pigment cell biology and gene function. This review details mouse models with coat color changes, aiding research into pigmentation and related human diseases.

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Area of Science:

  • Mammalian biology
  • Genetics
  • Molecular biology

Background:

  • Mammalian pigment cell research is rapidly advancing.
  • Mutant mouse stocks, including transgenic and knockout models, are crucial tools.
  • These mice exhibit abnormal coat color phenotypes, offering insights into gene function.

Purpose of the Study:

  • To provide an overview of mutant mice with pigmentation alterations.
  • To create an annotated table of these mouse models for research comparison.
  • To include a table of mouse models for human diseases with pigmentation abnormalities.

Main Methods:

  • Review of literature on mutant mouse stocks.
  • Annotation of mouse models with pigmentation alterations.
  • Compilation of data on genetically engineered and spontaneous mutants.

Main Results:

  • Identification of diverse mouse models, from developmental defects to melanoma metastasis.
  • Cataloging of mouse models relevant to human pigmentation disorders.
  • Creation of comprehensive tables for reference.

Conclusions:

  • Mutant mice are invaluable for understanding pigment cell function and gene roles.
  • This annotated table serves as a key resource for researchers in pigmentation and related fields.
  • Facilitates the study of molecular controls of pigmentation and associated human conditions.