SEQUENCE AND PCR-RFLP ANALYSIS OF 14 NOVEL BOLA-DRB3 ALLELES

被引：68

作者：

GELHAUS, A ^{[1
]}

SCHNITTGER, L ^{[1
]}

MEHLITZ, D ^{[1
]}

HORSTMANN, RD ^{[1
]}

MEYER, CG ^{[1
]}

机构：

[1] FREE UNIV BERLIN,DEPT TROP VET MED,D-14163 BERLIN,GERMANY

来源：

ANIMAL GENETICS | 1995年 / 26卷 / 03期

关键词：

BOLA-DRB; 3; CATTLE; GENETIC POLYMORPHISM; PCR-RFLP;

D O I：

10.1111/j.1365-2052.1995.tb03154.x

中图分类号：

S8 [畜牧、动物医学、狩猎、蚕、蜂];

学科分类号：

0905 ;

摘要：

The genetic diversity of the bovine class II DRB3 locus was investigated by polymerase chain reaction (PCR) amplification and DNA sequencing of the first domain exon. Studying 34 animals of Various cattle breeds, 14 previously unrecognized DRB3 alleles were identified. In three alleles, amino acid substitutions were observed that had not been previously found in bovine DRB3, but occurred at the same position in bovine DQB and in the DRB alleles of other mammals. For all newly identified alleles, the restriction fragment length polymorphism (RFLP) patterns of PCR products obtained with the enzymes RsaI, BstYI, and HaeIII were compared with patterns of 38 previously described alleles. Altogether, eleven novel PCR-RFLP types were defined. Twelve out of the 42 PCR-RFLP types identified so far were not found to be fully informative because they corresponded to more than one allelic sequence. PCR-RFLP may therefore be a rapid and useful method for DRB3 typing in cattle families, but for studies on outbred populations, sequencing and hybridization techniques are required.

引用

页码：147 / 153

页数：7

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