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鶏のゲノミクス: 羽をくっつけることと被害者の色素化

Linda Keeling1, Leif Andersson, Karin E Schütz

  • 1Department of Animal Environment and Health, Swedish University of Agricultural Sciences, PO Box 234, 53223 Skara, Sweden.

Nature
|October 8, 2004
PubMed
まとめ

ニワトリの羽根をくぐることは,羽毛の色と遺伝に関連しています. メラニゼーションのための特定の後退性アレルを持つ鳥は,この福祉の問題の犠牲者になる傾向があります.

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Epistasis

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Background and Environment Affect Phenotype

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Complementation Tests

A complementation test is a simple cross to identify whether the two mutations are located on the same gene or different genes. It was first performed by Edward Lewis in the 1940s while working on fruit flies. He developed the test to identify the location and arrangement of different mutations on chromosomes.
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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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