Blood groups of Nigerian cattle. Comparative aspects

Summary From approximately 1000 papers with data on protein polymorphism in some 216 breeds of cattle, 10 polymorphic proteins were compared in means and variances of gene frequencies (arcsin p½) for ten well‐recognized breed groups for 196 of the breeds. The polymorphic proteins were α‐lactalbumin, β‐lactoglobulin, caseins (αsl, β and x), serum albumin, transferrin, haemoglobin, amylase I and carbonic anhydrase II. The breed groups were North European, Pied Lowland, European Red brachyceros, Channel Island brachyceros, Upland brachyceros, primigenius‐brachyceros mixed, primigenius, Indian Zebu, African Humped (with Zebu admixture), and African Humped (Sanga). The coherence within groups and the differences between groups are often impressive. Only carbonic anhydrase II fails to differentiate at least some of the major breed groups. In some cases paradoxical distributions of rare genetic variants can be explained by a more detailed inspection of breed history. The chemical data support the morphological and geographical divisions of cattle into major breed groups. There are three distinct but related brachyceros groups; for some polymorphisms the two Channel Island breeds, the Jersey and the Guernsey, are quite divergent. Although some authorities have considered the Pied Lowland as primigenius, it is a very distinct breed group.

Section: Linkage Between Casein Locimentioning

confidence: 88%

“…Additional haemoglobin variants are more often found in Indian and African breeds than in European breeds. While the gene frequencies of these other haemoglobins 'are usually low, Hb D is present in some West African Dwarf Shorthorn breeds at gene frequencies as high as 0.4 (Braend, 1979).…”

Section: Linkage Between Casein Locimentioning

confidence: 99%

Chemical classification of cattle. 1. Breed groups

Baker

Manwell

1980

“…However, the FF2 gene has been shown to occur in British Friesian cattle (Hall & Ross, 1982;Ross & Larsen, 1981), and Stormont (1962) reported the finding of an allele reacting with anti-F, and anti-V, in American Charolais cattle. The F-and V-negative animals observed in studies of African and East Asian cattle (Osterhoff & Politzer, 1979;Abe, 1970;Carr et al, 1974;Braend, 1979;Fiorentini, Braend & Mzee, 1980) did not include tests for V,, N' and the additional factor (V') discovered in Edingburgh (Hall & Ross, 1982), and only the study by Osterhoff & Politter (1970) included anti-F,. They used anti-F, prepared in several laboratories and showed that some but not all of the Fand V-negative animals were F,-positive.…”

Section: Discussionmentioning

confidence: 99%

“…More recently the N' blood group factor was described as a member of the F blood group system (Grosclaude, 1966;Oldenbroek & Bouw, 1974), and at least one more antiserum has been reported detecting V', a factor of the F system (Hall & Ross, 1982). Thus in the original two-factor (F, and V,) two-allele system at least six antigens are recognized today, and studies in a variety of cattle breeds have revealed animals not reacting with the F and V reagents originally described (Osterhoff & Politzer, 1970;Abe, 1970;Carr et al, 1974;Braend, 1979;Fiorentini, Braend & Mzee, 1980). Furthermore, it has been observed that the factors V, and V, may not always behave as linear subtypes (Larsen, 1965).…”

Section: Introductionmentioning

confidence: 99%

On the bovine F blood group system

Larsen

1982

The F system of three Danish cattle breeds as determined by four specific antisera is described. In the Jersey breed three alleles are recognised. In the Danish cattle breeds there was no indication of a null allele. However, the phenotypes observed in zebu cattle by means of four reagents suggest the presence of at least six alleles in the bovine F system. Furthermore, the data show that the factors V, and V, do not form a linear subtype system in all cattle breeds.

“…0 sterhoff & Politzer (1968) confirmed these findings in 1968 and named the allele FJ. The presence of eleven F-negative V-negative animals was reported in 1033 East African Zebu cattle by Carr et al (1974) and in two out of 101 West African Zebu by Braend (1979). The first report that F-negative V-negative cattle existed in breeds of Western Europe (that were not of African origin) was given by Dabczewski (1969) who found the negative phenotype in 8.7 % of253 animals of the Kerry breed in Ireland.…”

Section: Introductionmentioning

confidence: 95%

Evidence for the presence of an additional allele in the F system of British Friesian cattle blood

Hall¹,

Ross²

1981

The antithetical relationship of the F and V alleles in British Friesian cattle was found to be imperfect. The presence of another allele was inferred. It was suspected of being native to the British Isles.Parentage records that contravened the assumption that F + V-and F-V+ animals were homozygous were not necessarily erroneous. -Black and white cattle in the Netherlands have received semen from a bull carrying the allele.