A role of an experimental fish in fish genetics and breeding science

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A model fish is important for the experiment of fish genetics and breeding science. One of the role of model experiment in fish genetics is to perform the experiment which need long time in the commercially important fish. The guppy, Poecilia reticulata, has been frequently used as model experiment of fish genetics, because of its many varieties and breeds, short life cycle, ease of breed and reproductive capacity. In this review, inbreeding depression and genetic influence for the growth were considered. In the former problem, small number of parents leads the genetic drift and homozygotes of lethal recessive genes were observed. And in latter problem, it was suggested that the small number of genes which locate on sex-chromosome are influencing the growth in the guppy.

Original languageEnglish
Pages (from-to)722-725
Number of pages4
JournalFisheries Science
Publication statusPublished - 2002


  • Inbreeding
  • Poecilia reticulata
  • genetic drift
  • guppy heterosis
  • heritability
  • isozyme
  • quantitative trait

ASJC Scopus subject areas

  • Aquatic Science


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