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UNDERSTANDING THE UTILITY OF GENETIC MARKERS WITH REFERENCE TO MICROSATELLITE DNA IN FISH

机译:了解鱼类中微卫星DNA的遗传标记的用途

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摘要

In a community of organisms of a certain species, individuals of the community bear variations in their DNA due to a large number of slightly dissimilar ancestors. Genetic marker is a tool that allows a scientist to detect the presence and extent of this genetic variation among individuals or between alleles in a particular segment of DNA. Microsatellite DNA is a kind of co-dominant marker which allows the analysis of only a locus per experiment and the allelic variations of that locus can be distinguished. In individuals of a particular fish species or any higher organism, numerous alleles usually occur at a microsatellite locus, with each allele differing in the number of repeats of the particular microsatellite repeat motif. Polymorphic microsatellite loci have been applied to the analysis of genetic diversity, population genetic structure and genome mapping in fishes.
机译:在某些物种的生物群落中,该群落的个体由于大量祖先略有不同而在其DNA中发生变异。遗传标记是允许科学家检测个体之间或特定DNA片段等位基因之间这种遗传变异的存在和程度的工具。微卫星DNA是一种共显性标记物,它允许每个实验仅分析一个基因座,并且可以区分该基因座的等位基因变异。在特定鱼类或任何更高等生物的个体中,许多等位基因通常出现在微卫星基因座上,每个等位基因的特定微卫星重复基序的重复数不同。多态微卫星基因座已被用于分析鱼类的遗传多样性,种群遗传结构和基因组图谱。

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  • 来源
    《Science and Culture》 |2013年第4期|167-173|共7页
  • 作者

    SUBRATO GHOSH;

  • 作者单位

    Department of Zoology, Utkal University, Vanivihar,Bhubaneswar - 751004, India;

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  • 正文语种 eng
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