Genetic relationships among taurine (<i>Bos taurus</i>) and zebu (<i>Bos indicus</i>) populations as revealed by blood groups and blood proteins

Ceriotti, G.; Caroli, Anna; Rizzi, Rita; Crimella, C.

doi:10.1046/j.1439-0388.2003.00379.x

Cited by 7 publications

(6 citation statements)

References 30 publications

(35 reference statements)

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“…Furthermore, studies dealing with the identification of new casein variants often considered only European taurine cattle breeds, even if different variants were described and characterized in Bos indicus (Mahé et al, 1999;Ceriotti et al, 2003;Chen et al, 2008;Lühken et al, 2009).…”

Section: Introductionmentioning

confidence: 99%

DNA-based identification of novel bovine casein gene variants

Gallinat

Qanbari

Drögemüller

et al. 2013

Journal of Dairy Science

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In cattle, at least 39 variants of the 4 casein proteins (α(S1)-, β-, α(S2)- and κ-casein) have been described to date. Many of these variants are known to affect milk-production traits, cheese-processing properties, and the nutritive value of milk. They also provide valuable information for phylogenetic studies. So far, the majority of studies exploring the genetic variability of bovine caseins considered European taurine cattle breeds and were carried out at the protein level by electrophoretic techniques. This only allows the identification of variants that, due to amino acid exchanges, differ in their electric charge, molecular weight, or isoelectric point. In this study, the open reading frames of the casein genes CSN1S1, CSN2, CSN1S2, and CSN3 of 356 animals belonging to 14 taurine and 3 indicine cattle breeds were sequenced. With this approach, we identified 23 alleles, including 5 new DNA sequence variants, with a predicted effect on the protein sequence. The new variants were only found in indicine breeds and in one local Iranian breed, which has been phenotypically classified as a taurine breed. A multidimensional scaling approach based on available SNP chip data, however, revealed an admixture of taurine and indicine populations in this breed as well as in the local Iranian breed Golpayegani. Specific indicine casein alleles were also identified in a few European taurine breeds, indicating the introgression of indicine breeds into these populations. This study shows the existence of substantial undiscovered genetic variability of bovine casein loci, especially in indicine cattle breeds. The identification of new variants is a valuable tool for phylogenetic studies and investigations into the evolution of the milk protein genes.

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Section: Introductionmentioning

confidence: 99%

DNA-based identification of novel bovine casein gene variants

Gallinat

Qanbari

Drögemüller

et al. 2013

Journal of Dairy Science

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“…The issues surrounding the origin and domestication of today's African cattle breeds [9,10,14,28], especially the theory of an African center of domestication for the African taurine [4,6,15,23,25] needs further clarification. The results of several investigations have also indicated that African zebu cattle are an admixture of Bos indicus and Bos taurus [4,15,25].…”

Section: Introductionmentioning

confidence: 99%

Genetic diversity, introgression and relationships among West/Central African cattle breeds

et al. 2004

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-Genetic diversity, introgression and relationships were studied in 521 individuals from 9 African Bos indicus and 3 Bos taurus cattle breeds in Cameroon and Nigeria using genotype information on 28 markers (16 microsatellite, 7 milk protein and 5 blood protein markers). The genotypes of 13 of the 16 microsatellite markers studied on three European (German Angus, German Simmental and German Yellow) and two Indian (Nelore and Ongole) breeds were used to assess the relationships between them and the African breeds. Diversity levels at microsatellite loci were higher in the zebu than in the taurine breeds and were generally similar for protein loci in the breeds in each group. Microsatellite allelic distribution displayed groups of alleles specific to the Indian zebu, African taurine and European taurine. The level of the Indian zebu genetic admixture proportions in the African zebus was higher than the African taurine and European taurine admixture proportions, and ranged from 58.1% to 74.0%. The African taurine breed, Muturu was free of Indian zebu genes while its counter Namchi was highly introgressed (30.2%). Phylogenic reconstruction and principal component analysis indicate close relationships among the zebu breeds in Cameroon and Nigeria and a large genetic divergence between the main cattle groups -African taurine, European taurine and Indian zebu, and a central position for the African zebus. The study presents the first comprehensive information on the hybrid composition of the individual cattle breeds of Cameroon and Nigeria and the genetic relationships existing among them and other breeds outside of Africa. Strong evidence supporting separate domestication events for the Bos species is also provided.

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“…These polymorphic characteristics of cattle and other farm animals studied in both (Ceriotti et al, 2003;Caroli et aZ., 2004;Zaton-Dobrowolska et al, 2006).…”

Section: Introductionmentioning

confidence: 94%

“…Support can be provided through conducting studies on blood groups, milk proteins and other biochemical systems. I n addition studies have also been carried out at molecular level (such as microsatellites and mtDNA) to determine the genetic structures of the population (Ceriotti et al, 2003). In many studies, the polymorphic systems of alpha-casein (asl-Cn), beta-casein (P-Cn), kapa-casein (k-Cn), beta-lacto globulin (P-Lg), haemoglobin (Hb), transferrin (Tf) were investigated i n protein and DNA levels (Rincon and Medrano, 2003;Ibeagha-Awemu et al, 2004, Rincon et al, 2006.…”

Section: Introductionmentioning

confidence: 99%

Determination of Genetic Distance Between East Anatolian Red, Brown Swiss, Holstein and Simmental Breeds of Cattle Using Polymorphic Systems

Doğru

Özdemir

Soysal

et al. 2008

Journal of Applied Animal Research

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Dogru, U., Ozdemir, M., Soysal, M.I. and Topal, M. 2008. Determination of genetic distance between East Anatolian Red, Brown Swiss, Holstein and Simmental breeds of cattle using polymorphic systems. J. Appl. Anim. Res., 33: 145-148. Genetic distances were determined according to Nei, Caualli-Sforza and Reynolds methods between the BrownSwiss (1 731, Simmental(80), Holstein (28) and East Anatolian Red (51) cattle breeds using milk protein (01s~) and blood protein types (Hb and Tfl. The distribution ofphenotypic frequencies i n all the four breeds for all systems except as,-Cn was significant (P

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Genetic relationships among taurine (Bos taurus) and zebu (Bos indicus) populations as revealed by blood groups and blood proteins

Cited by 7 publications

References 30 publications

DNA-based identification of novel bovine casein gene variants

DNA-based identification of novel bovine casein gene variants

Genetic diversity, introgression and relationships among West/Central African cattle breeds

Determination of Genetic Distance Between East Anatolian Red, Brown Swiss, Holstein and Simmental Breeds of Cattle Using Polymorphic Systems

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