Comparative FISH mapping of bovine cosmids to reindeer chromosomes demonstrates conservation of the X-chromosome (original) (raw)

Abstract

Three X chromosome-specific bovine cosmids were used for fluorescence_in situ_ hybridization mapping on reindeer (Rangifer tarandus) chromosomes, to test whether such large genomic clones could be used for comparative mapping across distantly related species. All three cosmids showed distinct unique hybridization sites on the reindeer X. Comparative map locations of these cosmids, together with the relative C-banding and genome size data on the X chromosomes of the two species, provide preliminary indications that the short and long arms of bovine X correspond, respectively, to the long and short arms of the reindeer X. The study also demonstrates that cosmid clones can be used successfully for comparative mapping across species that diverged 35 million years ago.

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Authors and Affiliations

  1. Department of Animal Breeding and Genetics, Swedish University of Agricultural Sciences, Box 7023, S-750 07, Uppsala, Sweden
    B. Prakash, I. Gustavsson & B. P. Chowdhary
  2. Department of Applied Zoology, University of Kuopio, Box 1627, SF-70211, Kuopio, Finland
    V. Kuosku
  3. Department of Morphology, Genetics and Aquatic Biology, Norwegian College of Veterinary Medicine, Box 8146, N-0033, Oslo, Norway
    I. Olsaker

Authors

  1. B. Prakash
  2. V. Kuosku
  3. I. Olsaker
  4. I. Gustavsson
  5. B. P. Chowdhary

Corresponding author

Correspondence toB. P. Chowdhary.

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accepted for publication by M. Schmid

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Prakash, B., Kuosku, V., Olsaker, I. et al. Comparative FISH mapping of bovine cosmids to reindeer chromosomes demonstrates conservation of the X-chromosome.Chromosome Res 4, 214–217 (1996). https://doi.org/10.1007/BF02254962

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