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  • Title: [Analysis of the distribution of ribosomal RNA genes on chromosomes of the domestic horse (Equus caballus) using fluorescent in situ hybridization].
    Author: Deriusheva SE, Loginova IuA, Chiriaeva OG, Iaschak K, Smirnov AF.
    Journal: Genetika; 1997 Sep; 33(9):1281-6. PubMed ID: 9445820.
    Abstract:
    Distribution of blocks of ribosomal RNA genes along metaphase chromosomes of 26 horses from five breeds was determined by means of a modified method of fluorescence in situ hybridization (FISH) in combination with simultaneous R- banding. Gene loci coding for rRNA were mapped to the region of secondary constriction on the short arm of chromosome 1, and to the pericentromeric regions of chromosomes 27, 28, and 31. The nucleolar organizer region (NOR) on chromosome 27 was not described earlier. Interindividual and interchromosomal NOR polymorphism was detected With the use of a semiquantitative score estimation of fluorescence hybridization signals.
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