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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 |
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Journal Article |
Year |
2013 |
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Plos One |
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Plos One |
Volume |
8 |
Issue |
1 |
Pages |
e54997 |
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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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Equine Behaviour @ team @ |
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6214 |
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Pirault, P.; Danvy, S.; Verrier, E.; Leroy, G. |
Title |
Genetic Structure and Gene Flows within Horses: A Genealogical Study at the French Population Scale |
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Journal Article |
Year |
2013 |
Publication |
Plos One |
Abbreviated Journal |
Plos One |
Volume |
8 |
Issue |
4 |
Pages |
e61544 |
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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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Equine Behaviour @ team @ |
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6215 |
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Albiach-Serrano, A.; Bräuer, J.; Cacchione, T.; Zickert, N.; Amici, F. |
Title |
The effect of domestication and ontogeny in swine cognition (Sus scrofa scrofa and S. s. domestica) |
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Journal Article |
Year |
2012 |
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Appl Anim Behav Sci |
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141 |
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Equine Behaviour @ team @ Albiach-Serrano2012 |
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6329 |
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Author |
Aldezabal, A.; Garin, I. |
Title |
Browsing preference of feral goats (Capra hircus L.) in a Mediterranean mountain scrubland |
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2000 |
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J Arid Env |
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44 |
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Equine Behaviour @ team @ Aldezabal2000 |
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6256 |
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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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2013 |
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Peer J |
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1 |
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Equine Behaviour @ team @ Baciadonna2013 |
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6269 |
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Author |
Bates, D. |
Title |
Fitting linear mixed models in R |
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2005 |
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R News |
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5 |
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Equine Behaviour @ team @ Bates2005 |
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6293 |
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Author |
Benson-Amram, S.; Holekamp, K.E. |
Title |
Innovative problem solving by wild spotted hyenas |
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Journal Article |
Year |
2012 |
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Proc R Soc B |
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Proc R Soc B |
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279 |
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4087-4095 |
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Equine Behaviour @ team @ Benson-Amram2012 |
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6266 |
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Author |
Blakeman, N.E.; Friend, T.H. |
Title |
Visual discrimination at varying distances in Spanish goats |
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1986 |
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Appl Anim Behav Sci |
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16 |
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Equine Behaviour @ team @ Blakeman1986 |
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6251 |
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Briefer, E.F.; Padilla de la Torre, M.; McElligott, A.G. |
Title |
Mother goats do not forget their kids' calls |
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2012 |
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Proc R Soc B |
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279 |
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Equine Behaviour @ team @ Briefer2012 |
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6282 |
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Briefer, E.F.; McElligott, A.G. |
Title |
Rescued goats at a sanctuary display positive mood after former neglect |
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2013 |
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Appl Anim Behav Sci |
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146 |
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Equine Behaviour @ team @ Briefer2013 |
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6287 |
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