X trisomy in a sterile mare

Equine Vet J. 2010 Jul;42(5):469-70. doi: 10.1111/j.2042-3306.2010.0094.x.


This report concerns the cytogenetic analysis, using both C-banding and fluorescence in situ hybridisation techniques, of a sterile mare. Results obtained revealed a 2n = 65, XXX condition with no sign of mosaicism. The work supports the suggestion that X trisomy, rare in horse, causes infertility in mares and is not associated to other clearly visible phenotypic features.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Animals
  • Female
  • Horses / genetics*
  • In Situ Hybridization, Fluorescence
  • Infertility, Female / genetics
  • Infertility, Female / veterinary*
  • Karyotyping
  • Trisomy / physiopathology*
  • X Chromosome / genetics*