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Haemoglobin Types of Old Norwegian Short Tail Land Race Sheep
Acta Veterinaria Scandinavica volume 28, pages 121–123 (1987)
Abstract
Thirty years have passed since it was shown that sheep have two types of haemoglobin (Hb), A and B. Since then a large number of studies have been undertaken; gene frequencies, relations and origins of breeds, biochemistry, correlations with diseases, to mention the most important fields for which these 2 haemoglobins have been utilized. A few years ago, in a number of studies, Vestri and coworkers (Vestri et al. 1983) using chromatographic and biochemical methods together with isoelectric focusing showed that in Italian sheep additional Hb types occurred. These new types are caused by substitutions in the alpha chains, in contrast to the A and B difference which is caused by 7 amino acid substitutions in the beta chain (Huisman et al. 1965). Vestri et al (1983) also proved that the alpha chains in sheep, as in man, horse and goat among others, are controlled by 2 closely linked alpha globin genes.
References
Braend M, Nesse LL, Efremov G: Expression and genetics of caprine haemoglobins. Animal Genetics 1987. In press.
Efremov G, Braend M: Haemoglobins, transferrins and albumins of sheep and goats. Proc. IXth Europ. Conf. Animal Blood Groups. Czech. Acad. Sci. Prague 1965, p. 313–320.
Huisman THJ, Reynolds CA, Dozy AM, Wilson JB: The structure of sheep hemoglobins. The amino acid composition of the a and ß chains of the hemoglobins A, B and C. J. biol. Chem. 1965, 240, 2455–2460.
Vestri R, Giordano PC, Bernini LF: Duplication of the hemoglobin a chain in sheep: Characterization of a new a chain variant present in animals possessing the a1-11 and the aHls chains. Biochemical Genetics 1983, 21, 25–35.
Acknowledgement
We are grateful to the sheep owners at Selbjørn for their willingness and help in supplying blood samples.
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Braend, M., Aursjø, J. & Austbø, O. Haemoglobin Types of Old Norwegian Short Tail Land Race Sheep. Acta Vet Scand 28, 121–123 (1987). https://doi.org/10.1186/BF03548263
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DOI: https://doi.org/10.1186/BF03548263