Genetic blood markers in Arabian, Barb and Arab‐Barb horses in Morocco

Ouragh, Lahoussine; Mériaux, J-C; Jp, Braun

doi:10.1111/j.1365-2052.1994.tb00055.x

Cited by 3 publications

(4 citation statements)

References 8 publications

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“…The genetic proximity of both autochthonous breeds BA and AB was also demonstrated using the FCA and the Bayesian clustering approach, which gives more precise information on breed relationships. However, our estimates for the native breeds (BA and AB) are similar to this reported by Ouragh et al (1994), pointed out using biochemical polymorphisms.…”

Section: Discussionsupporting

confidence: 90%

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Molecular characterization and differentiation of five horse breeds raised in Algeria using polymorphic microsatellite markers

Berber

Gaouar

Leroy

et al. 2014

J Animal Breeding Genetics

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In this study, genetic analyses of diversity and differentiation were performed on five horse breeds raised in Algeria (Barb, Arab-Barb, Arabian, Thoroughbred and French Trotter). All microsatellite markers were highly polymorphic in all the breeds. A total of 123 alleles from 14 microsatellite loci were detected in 201 horses. The average number of alleles per locus was the highest in the Arab-Barb horses (7.86) and lowest in the thoroughbred breed (5.71), whereas the observed and expected heterozygosities per breed ranged from 0.71 (Thoroughbred) to 0.752 (Barb) and 0.71 (Thoroughbred) to 0.77 (Arab-Barb), respectively. The genetic differentiation between the breeds was significant (p < 0.01) based on the infinitesimal model (FST ). Three different approaches for evaluating the genetic relationships were applied. Genetic distances, the factorial correspondence analysis and structure analysis showed that a significant amount of genetic variation is maintained in the native horse populations and the other breeds. The Barb and Arab-Barb breeds seem to be the most genetically related and support the decision to consider the breeds as same population.

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Section: Discussionsupporting

confidence: 90%

“…However, our estimates for the native breeds (BA and AB) are similar to this reported by Ouragh et al . (), pointed out using biochemical polymorphisms.…”

Section: Discussionmentioning

confidence: 99%

Molecular characterization and differentiation of five horse breeds raised in Algeria using polymorphic microsatellite markers

Berber

Gaouar

Leroy

et al. 2014

J Animal Breeding Genetics

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“…Berber et al (2014) reported genetic proximity of both Barb and Arab-Barb breeds. These results corroborate those advanced by Ouragh et al (1994). The neighbor-joining clustering approach and the factorial correspondence analysis were used as efficient tools that give precise information on breed relationships (Figs.…”

Section: Factorial Correspondence Analysis For Analyzed Horse Breedssupporting

confidence: 77%

Genetic diversity in Tunisian horse breeds

et al. 2017

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Abstract. This study aimed at screening genetic diversity and differentiation in four horse breeds raised in Tunisia, the Barb, Arab-Barb, Arabian, and English Thoroughbred breeds. A total of 200 blood samples (50 for each breed) were collected from the jugular veins of animals, and genomic DNA was extracted. The analysis of the genetic structure was carried out using a panel of 16 microsatellite loci. Results showed that all studied microsatellite markers were highly polymorphic in all breeds. Overall, a total of 147 alleles were detected using the 16 microsatellite loci. The average number of alleles per locus was 7.52 (0.49), 7.35 (0.54), 6.3 (0.44), and 6 (0.38) for the Arab-Barb, Barb, Arabian, and English Thoroughbred breeds, respectively. The observed heterozygosities ranged from 0.63 (0.03) in the English Thoroughbred to 0.72 in the Arab-Barb breeds, whereas the expected heterozygosities were between 0.68 (0.02) in the English Thoroughbred and 0.73 in the Barb breeds. All F ST values calculated by pairwise breed combinations were significantly different from zero (p < 0.05) and an important genetic differentiation among breeds was revealed. Genetic distances, the factorial correspondence, and principal coordinate analyses showed that the important amount of genetic variation was within population. These results may facilitate conservation programs for the studied breeds and enhance preserve their genetic diversity.

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“…Investigation of blood group markers, protein, and DNA polymorphisms in North African subpopulations showed a pronounced genetic variation within the Barbs and the Arab-Barbs. Private alleles and high levels of heterozygosity were noted, however, no significant genetic differentiation was observed between Barb and Arab-Barb populations [ 26 , 27 , 28 , 29 ]. Likewise, apparent phenotypic differences distinguish the purebred Barb horse from the Arabian horse [ 1 , 23 , 25 , 30 , 31 ].…”

Section: Introductionmentioning

confidence: 99%

Y Chromosome Haplotypes Enlighten Origin, Influence, and Breeding History of North African Barb Horses

Radovic

Remer

Krcal

et al. 2022

Animals

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In horses, demographic patterns are complex due to historical migrations and eventful breeding histories. Particularly puzzling is the ancestry of the North African horse, a founding horse breed, shaped by numerous influences throughout history. A genetic marker particularly suitable to investigate the paternal demographic history of populations is the non-recombining male-specific region of the Y chromosome (MSY). Using a recently established horse MSY haplotype (HT) topology and KASP™ genotyping, we illustrate MSY HT spectra of 119 Barb and Arab-Barb males, collected from the Maghreb region and European subpopulations. All detected HTs belonged to the Crown haplogroup, and the broad MSY spectrum reflects the wide variety of influential stallions throughout the breed’s history. Distinct HTs and regional disparities were characterized and a remarkable number of early introduced lineages were observed. The data indicate recent refinement with Thoroughbred and Arabian patrilines, while 57% of the dataset supports historical migrations between North Africa and the Iberian Peninsula. In the Barb horse, we detected the HT linked to Godolphin Arabian, one of the Thoroughbred founders. Hence, we shed new light on the question of the ancestry of one Thoroughbred patriline. We show the strength of the horse Y chromosome as a genealogical tool, enlighten recent paternal history of North African horses, and set the foundation for future studies on the breed and the formation of conservation breeding programs.

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Genetic blood markers in Arabian, Barb and Arab‐Barb horses in Morocco

Cited by 3 publications

References 8 publications

Molecular characterization and differentiation of five horse breeds raised in Algeria using polymorphic microsatellite markers

Molecular characterization and differentiation of five horse breeds raised in Algeria using polymorphic microsatellite markers

Genetic diversity in Tunisian horse breeds

Y Chromosome Haplotypes Enlighten Origin, Influence, and Breeding History of North African Barb Horses

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