Analysis and frequency of bovine lymphocyte antigen DRB3.2 alleles in Jersey cows.
Jersey cows (n = 172) were genotyped for the bovine lymphocyte antigen (BoLA)-DRB3.2 allele by polymerase chain reaction and restriction fragment length polymorphism analysis. Bovine DNA was isolated from aliquots of whole blood. A two-step polymerase chain reaction followed by digestion with restriction endonucleases RsaI, BstyI, and HaeIII was conducted on the DNA from Jersey cattle. Twenty-four BoLA-DRB3.2 alleles were identified with frequencies ranging from 0.3 to 22.9%. Thirteen allele types were similar to those reported previously; and 11 were new allele types that have not been reported previously. Allele types reported previously include: BoLA-DRB3.2*2, *8, *10, *15, *17, *20, *21, *22, *23, *25, *28, *36, and *37. Their frequencies were 0.3, 11.3, 22.9, 13.6, 5.5, 3.7, 10.7, 3.5, 0.9, 0.3, 4.7, 9.3, and 0.9%, respectively. Of the new allele types detected, *ibe occurred at the highest frequency (6.1%) in Jersey cows from this herd. The six most frequently isolated alleles (BoLA-DRB3.2*8, *10, *15, *21, *36, and *ibe) accounted for 73.9% of the alleles in the population of this herd. Results of this study demonstrate that the BoLA-DRB3.2 locus is highly polymorphic in Jersey cattle.
Gilliespie
B E
BE
Department of Animal Science, University of Tennessee, Knoxville 37996, USA.
Jayarao
B M
BM
Dowlen
H H
HH
Oliver
S P
SP
D000483:Alleles; D000818:Animals; D002417:Cattle / Q000235:genetics* / Q000276:immunology*; D015245:Deoxyribonuclease BamHI / Q000378:metabolism; D015252:Deoxyribonucleases, Type II Site-Specific / Q000378:metabolism; D005260:Female; D005787:Gene Frequency; D000949:Histocompatibility Antigens Class II / Q000235:genetics*; D016133:Polymerase Chain Reaction; D012150:Polymorphism, Restriction Fragment Length
D000949:Histocompatibility Antigens Class II; D015245:Deoxyribonuclease BamHI; D015252:Deoxyribonucleases, Type II Site-Specific; C024403:GGCC-specific type II deoxyribonucleases; C040158:GTAC-specific type II deoxyribonucleases