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Journal of Heredity Advance Access published online on July 9, 2007
Journal of Heredity, doi:10.1093/jhered/esm045
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© The American Genetic Association. 2007. All rights reserved. For permissions, please email: journals.permissions@oxfordjournals.org.

Evaluation of Tafazzin as Candidate for Dilated Cardiomyopathy in Irish Wolfhounds

Ute Philipp, Cornelia Broschk, Andrea Vollmar, and Ottmar Distl

From the Institute for Animal Breeding and Genetics, University of Veterinary Medicine Hannover, Bünteweg 17p, 30559 Hannover, Germany (Philipp, Broschk, and Distl); and Veterinary Clinic for Small Animals, Heisterstrasse 5, 57357 Wissen, Germany (Vollmar)

Address correspondence to O. Distl at the address above, or e-mail: ottmar.distl{at}tiho-hannover.de.

Dilated cardiomyopathy (DCM) is a common disease in humans and dogs. Large-breed dogs and especially Irish wolfhounds belong to the frequently affected breeds. Male Irish wolfhounds show a significantly higher prevalence of DCM than females. Therefore, we evaluated X chromosome markers for linkage with DCM as well as a human candidate gene on the X chromosome. A set of X chromosomal microsatellites was genotyped in Irish wolfhound families segregating for DCM. In addition, exon and intron sequences of the tafazzin (TAZ) gene were assayed for polymorphisms segregating in these families. Statistical analysis of the microsatellite markers did not reveal linkage to DCM. Furthermore, all Irish wolfhounds included in this study were monomorphic for TAZ, and only 8 sequence differences to the Dog Genome Assembly 2.1 could be found. The results indicate that due to the lack of mutations, TAZ is unlikely to cause DCM in Irish wolfhounds.

This paper was delivered at the 3rd International Conference on the Advances in Canine and Feline Genomics, School of Veterinary Medicine, University of California, Davis, CA, August 3–5, 2006.

Corresponding Editor: Urs Giger


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