| Records |
| Author |
Machmoum, M.; Badaoui, B.; Petit, D.; Germot, A.; El Alaoui, M.A.; Boujenane, I.; Piro, M. |
Title  |
Genetic Diversity and Maternal Phylogenetic Relationships among Populations and Strains of Arabian Show Horses |
Type |
Journal Article |
| Year |
2023 |
Publication |
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Abbreviated Journal |
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| Volume |
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Issue |
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Pages |
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| Keywords |
genetic variability; whole D-loop mitochondrial DNA; desert-bred; straight Egyptian; Polish Arabian; traditional Arabian horse classification |
| Abstract |
Genetic diversity and phylogenetic relationships within the Arabian show horse populations are of particular interest to breeders worldwide. Using the complete mitochondrial DNA D-loop sequence (916 pb), this study aimed (i) to understand the genetic relationship between three populations, the Desert-Bred (DB), a subset of the Kingdom of Saudi Arabia (KSA), United Arab Emirates (UAE) and Bahrain (BAH), the Straight Egyptian (EG) and the Polish bloodline (PL), and (ii) to assess the accuracy of the traditional strain classification system based on maternal lines, as stated by the Bedouin culture. To that end, we collected 211 hair samples from stud farms renowned for breeding Arabian show horses from Nejd KSA, Bahrain, Egypt, Qatar, Morocco, UAE, and Poland. The phylogenetic and network analyses of the whole mitochondrial DNA D-loop sequence highlighted a great genetic diversity among the Arabian horse populations, in which about 75% of variance was assigned to populations and 25% to strains. The discriminant analysis of principal components illustrated a relative distinction between those populations. A clear subdivision between traditional strains was found in PL, in contrast to the situation of DB and EG populations. However, several Polish horse individuals could not be traced back to the Bedouin tribes by historical documentation and were shown to differ genetically from other studied Bedouin strains, hence motivating extended investigations. |
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Original Title |
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Series Title |
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Abbreviated Series Title |
Animals |
| Series Volume |
13 |
Series Issue |
12 |
Edition |
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| ISSN |
2076-2615 |
ISBN |
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Approved |
no |
| Call Number |
Equine Behaviour @ team @ |
Serial |
6709 |
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| Author |
Aberle, K.S.; Hamann, H.; Drögemüller, C.; Distl, O. |
| Title |
Genetic diversity in German draught horse breeds compared with a group of primitive, riding and wild horses by means of microsatellite DNA markers |
Type |
Journal Article |
| Year |
2004 |
Publication |
Animal Genetics |
Abbreviated Journal |
Anim. Gen. |
| Volume |
35 |
Issue |
4 |
Pages |
270-277 |
| Keywords |
diversity; endangered breeds; genetic variation; horse; microsatellite |
| Abstract |
Summary We compared the genetic diversity and distance among six German draught horse breeds to wild (Przewalski's Horse), primitive (Icelandic Horse, Sorraia Horse, Exmoor Pony) or riding horse breeds (Hanoverian Warmblood, Arabian) by means of genotypic information from 30 microsatellite loci. The draught horse breeds included the South German Coldblood, Rhenish German Draught Horse, Mecklenburg Coldblood, Saxon Thuringa Coldblood, Black Forest Horse and Schleswig Draught Horse. Despite large differences in population sizes, the average observed heterozygosity (Ho) differed little among the heavy horse breeds (0.64�0.71), but was considerably lower than in the Hanoverian Warmblood or Icelandic Horse population. The mean number of alleles (NA) decreased more markedly with declining population sizes of German draught horse breeds (5.2�6.3) but did not reach the values of Hanoverian Warmblood (NA = 6.7). The coefficient of differentiation among the heavy horse breeds showed 11.6% of the diversity between the heavy horse breeds, as opposed to 21.2% between the other horse populations. The differentiation test revealed highly significant genetic differences among all draught horse breeds except the Mecklenburg and Saxon Thuringa Coldbloods. The Schleswig Draught Horse was the most distinct draught horse breed. In conclusion, the study demonstrated a clear distinction among the German draught horse breeds and even among breeds with a very short history of divergence like Rhenish German Draught Horse and its East German subpopulations Mecklenburg and Saxon Thuringa Coldblood. |
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Blackwell Science Ltd |
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1365-2052 |
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no |
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Equine Behaviour @ team @ |
Serial |
5184 |
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| Author |
Petersen, J.L.; Mickelson, J.R.; Cothran, E.G.; Andersson, L.S.; Axelsson, J.; Bailey, E.; Bannasch, D.; Binns, M.M.; Borges, A.S.; Brama, P.; da Câmara Machado, A.; Distl, O.; Felicetti, M.; Fox-Clipsham, L.; Graves, K.T.; Guérin, G.; Haase, B.; Hasegawa, T.; Hemmann, K.; Hill, E.W.; Leeb, T.; Lindgren, G.; Lohi, H.; Lopes, M.S.; McGivney, B.A.; Mikko, S.; Orr, N.; Penedo, M.C.T.; Piercy, R.J.; Raekallio, M.; Rieder, S.; Røed, K.H.; Silvestrelli, M.; Swinburne, J.; Tozaki, T.; Vaudin, M.; M. Wade, C.; McCue, M.E. |
| Title |
Genetic Diversity in the Modern Horse Illustrated from Genome-Wide SNP Data |
Type |
Journal Article |
| Year |
2013 |
Publication |
Plos One |
Abbreviated Journal |
Plos One |
| Volume |
8 |
Issue |
1 |
Pages |
e54997 |
| Keywords |
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| Abstract |
Horses were domesticated from the Eurasian steppes 5,000-6,000 years ago. Since then, the use of horses for transportation, warfare, and agriculture, as well as selection for desired traits and fitness, has resulted in diverse populations distributed across the world, many of which have become or are in the process of becoming formally organized into closed, breeding populations (breeds). This report describes the use of a genome-wide set of autosomal SNPs and 814 horses from 36 breeds to provide the first detailed description of equine breed diversity. FST calculations, parsimony, and distance analysis demonstrated relationships among the breeds that largely reflect geographic origins and known breed histories. Low levels of population divergence were observed between breeds that are relatively early on in the process of breed development, and between those with high levels of within-breed diversity, whether due to large population size, ongoing outcrossing, or large within-breed phenotypic diversity. Populations with low within-breed diversity included those which have experienced population bottlenecks, have been under intense selective pressure, or are closed populations with long breed histories. These results provide new insights into the relationships among and the diversity within breeds of horses. In addition these results will facilitate future genome-wide association studies and investigations into genomic targets of selection. |
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Public Library of Science |
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no |
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Equine Behaviour @ team @ |
Serial |
6214 |
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| Author |
Pirault, P.; Danvy, S.; Verrier, E.; Leroy, G. |
| Title |
Genetic Structure and Gene Flows within Horses: A Genealogical Study at the French Population Scale |
Type |
Journal Article |
| Year |
2013 |
Publication |
Plos One |
Abbreviated Journal |
Plos One |
| Volume |
8 |
Issue |
4 |
Pages |
e61544 |
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| Abstract |
Since horse breeds constitute populations submitted to variable and multiple outcrossing events, we analyzed the genetic structure and gene flows considering horses raised in France. We used genealogical data, with a reference population of 547,620 horses born in France between 2002 and 2011, grouped according to 55 breed origins. On average, individuals had 6.3 equivalent generations known. Considering different population levels, fixation index decreased from an overall species FIT of 1.37%, to an average of -0.07% when considering the 55 origins, showing that most horse breeds constitute populations without genetic structure. We illustrate the complexity of gene flows existing among horse breeds, a few populations being closed to foreign influence, most, however, being submitted to various levels of introgression. In particular, Thoroughbred and Arab breeds are largely used as introgression sources, since those two populations explain together 26% of founder origins within the overall horse population. When compared with molecular data, breeds with a small level of coancestry also showed low genetic distance; the gene pool of the breeds was probably impacted by their reproducer exchanges. |
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Public Library of Science |
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no |
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Equine Behaviour @ team @ |
Serial |
6215 |
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| Author |
Piro, M.; Benjouad, A.; Karom, A.; Nabich, A.; Benbihi, N.; El Allali, K.; Machmoum, M.; Ouragh, L. |
| Title |
Genetic Structure of Severe Combined Immunodeficiency Carrier Horses in Morocco Inferred by Microsatellite Data |
Type |
Journal Article |
| Year |
2011 |
Publication |
Journal of Equine Veterinary Science |
Abbreviated Journal |
J. Equine Vet. Sci. |
| Volume |
31 |
Issue |
11 |
Pages |
618-624 |
| Keywords |
Scid; Arab horses; Arab-Barb horses; Microsatellite; Dna; Genetic structure |
| Abstract |
A total of 17 microsatellite deoxyribonucleic acid loci used routinely for horse parentage control were used to evaluate genetic diversity among normal Arabian horses and severe combined immunodeficiency (SCID) carrier Arabian horses (ArS) and normal Arab-Barb horses and SCID carrier Arab-Barb horses (ArbeS). On the basis of the genotype of 186 horses, mean allelic diversity was estimated as 6.82, 5.53, and 6.7059 in normal Arabian horses, ArS, and for both groups of Arab-Barb horses, respectively. Five specific alleles were observed in ArS and ArbeS, with one common with ArS at HMS6, whereas five alleles common between ArS and ArbeS had a high frequency. Expected and observed heterozygosity showed great heterogeneity in the population studied and were similar or higher when compared with other studies on Arabian horses. Coefficient of gene differentiation Gst of Nei associated with Nei's genetic distance and multivariate correspondence analysis indicated a possible differentiation between the studied populations when analyzed separately according to breed. Probability of assignment of a horse to a specific group was assessed using a full and partial Bayesian approach. In all, 80.6% of Arab horses and 78.2% of Arab-Barb horses were assigned properly with a partial Bayesian test, which provided better results than the full one. These findings will be useful for identification of SCID carrier horses by using the microsatellite deoxyribonucleic acid loci used routinely for horse parentage control in our laboratory. |
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0737-0806 |
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no |
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Equine Behaviour @ team @ |
Serial |
6657 |
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| Author |
Briefer, E.F.; Haque, S.; Baciadonna, L.; McElligott, A.G. |
| Title |
Goats excel at learning and remembering a highly novel cognitive task |
Type |
Journal Article |
| Year |
2014 |
Publication |
Frontiers in Zoology |
Abbreviated Journal |
Front. Zool. |
| Volume |
11 |
Issue |
1 |
Pages |
20 |
| Keywords |
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| Abstract |
The computational demands of sociality (maintaining group cohesion, reducing conflict) and ecological problems (extractive foraging, memorizing resource locations) are the main drivers proposed to explain the evolution cognition. Different predictions follow, about whether animals would preferentially learn new tasks socially or not, but the prevalent view today is that intelligent species should excel at social learning. However, the predictions were originally used to explain primate cognition, and studies of species with relatively smaller brains are rare. By contrast, domestication has often led to a decrease in brain size, which could affect cognition. In domestic animals, the relaxed selection pressures compared to a wild environment could have led to reduced social and physical cognition. Goats possess several features commonly associated with advanced cognition, such as successful colonization of new environments and complex fission-fusion societies. Here, we assessed goat social and physical cognition as well as long-term memory of a complex two-step foraging task (food box cognitive challenge), in order to investigate some of the main selection pressures thought to affect the evolution of ungulate cognition. |
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1742-9994 |
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no |
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Equine Behaviour @ team @ Briefer2014 |
Serial |
6376 |
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| Author |
Baciadonna, L.; McElligott, A.G.; Briefer, E.F. |
| Title |
Goats favour personal over social information in an experimental foraging task |
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Journal Article |
| Year |
2013 |
Publication |
Peer J |
Abbreviated Journal |
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1 |
Issue |
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Equine Behaviour @ team @ Baciadonna2013 |
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6269 |
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| Author |
Veen, P.; Jefferson, R.; de Smidt, J.; van der Straaten, J. |
| Title |
Grasslands in Europe of high nature value |
Type |
Book Whole |
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2009 |
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Brill |
Place of Publication |
The Netherlands |
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No Linguistic Content |
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9789050113168 9050113168 9789004278103 9004278109 |
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no |
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Equine Behaviour @ team @ 6066883015 |
Serial |
6561 |
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| Author |
Pérez-Barbería, F.J.; Gordon, I.J. |
| Title |
Gregariousness increases brain size in ungulates |
Type |
Journal Article |
| Year |
2005 |
Publication |
Oecologia |
Abbreviated Journal |
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145 |
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no |
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Equine Behaviour @ team @ Pérez-Barbería2005 |
Serial |
6258 |
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| Author |
Zaccaroni, M.; Passilongo, D.; Buccianti, A.; Dessi-Fulgheri, F.; Facchini, C.; Gazzola, A. |
| Title |
Group specific vocal signature in free- ranging wolf packs |
Type |
Journal Article |
| Year |
2012 |
Publication |
Ethol Ecol Evol |
Abbreviated Journal |
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24 |
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Equine Behaviour @ team @ Zaccaroni2012 |
Serial |
6470 |
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