Inheritance of dermoid sinus in the Rhodesian ridgeback

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N H C Salmon Hillbertz¹

¹Swedish University of Agricultural Sciences, Department of Animal Breeding and Genetics, Biomedical Centre, Box 597, S-751 24, Uppsala.

The Journal of Small Animal Practice

|March 2, 2005

Abstract

Objectives:

TO define the mode of inheritance of dermoid sinus.

Methods:

A chi-squared analysis was performed on data from 46 litters produced between 1990 and 2001. Data were corrected to avoid bias in the segregation ratio.

Results:

In data from 57 litters (n=492), 82 dermoid sinus positive offspring were observed. The frequency of affected offspring in the Swedish Rhodesian ridgeback population is estimated to be between 8 and 10 per cent.

Clinical Significance:

Bias in heredity pattern may be caused by undetected dermoid sinus type V. Improved clinical diagnosis of all dermoid sinus types is therefore crucial.

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Articles linked to this work by shared authors, journal, and citation graph.

Autosomal dominant mutation causing the dorsal ridge predisposes for dermoid sinus in Rhodesian ridgeback dogs.

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