Abstract
Polymorphism of the dental formula was analyzed in a complex pedigree of Kerry Blue Terrier. A lack of one or more lower premolars was observed in some dogs. Two different patterns of missing teeth were identified. One pattern consisted in agenesis of a second premolar, often in combination with agenesis of neighbor teeth, including the fourth premolar. In the second pattern, agenesis of a fourth premolar was expressed as an isolated abnormality. It was shown previously that the first pattern is inherited as a recessive trait with near complete penetrance. In this work, the major-gene control was demonstrated for the second pattern. This abnormality develops in 70–80% of mutant homozygotes and in no more than 20% of heterozygotes and wild-type homozygotes. It was shown that the two dentition abnormalities are controlled by different genes, which were designated LPA2 and LPA4 (Lower Premolar Agenesis).
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Original Russian Text © T.I. Axenovich, A.V. Kulikova, S.P. Knyazev, I.V. Zorkoltseva, P.M. Borodin, 2006, published in Genetika, 2006, Vol. 42, No. 3, pp. 414–420.
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Axenovich, T.I., Kulikova, A.V., Knyazev, S.P. et al. Polymorphism of dental formula and segregation of its variants in a pedigree of Kerry Blue Terrier dogs. Russ J Genet 42, 327–332 (2006). https://doi.org/10.1134/S1022795406030148
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DOI: https://doi.org/10.1134/S1022795406030148