Frequencies of plasma protease inhibitor alleles in Australian horse breeds and the recognition of two new alleles
- 23 April 1987
- journal article
- research article
- Published by Wiley in Animal Genetics
- Vol. 18 (2) , 181-186
- https://doi.org/10.1111/j.1365-2052.1987.tb00757.x
Abstract
Investigation of the plasma protease inhibitor system (Pi) in the Arabian and quarter horse breeds and re-examination of the standardbred breed resulted in the recognition of two new Pi alleles, designated E and L2. PiE is rare and has been found in only three quarter horses. In contrast, PiL2 is relatively common in the standardbred (0.107) and allowed subdivision of PiL into PiL and PiL2. Splitting of PiL resulted in an exclusion probability (PE) of 0.649 for the standardbred Pi system. Frequencies of the Pi genes have now been determined for four breeds (thoroughbred, standardbred, quarter horse and Arabian) of horses in Australia.Keywords
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