Genome Diversity and the Origin of the Arabian Horse

Abstract The Arabian horse, one of the world’s oldest breeds of any domesticated animal, is characterized by natural beauty, graceful movement, athletic endurance, and, as a result of its development in the arid Middle East, the ability to thrive in a hot, dry environment. Here we studied 378 Arabia...

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Autores principales: Elissa J. Cosgrove, Raheleh Sadeghi, Florencia Schlamp, Heather M. Holl, Mohammad Moradi-Shahrbabak, Seyed Reza Miraei-Ashtiani, Salma Abdalla, Ben Shykind, Mats Troedsson, Monika Stefaniuk-Szmukier, Anil Prabhu, Stefania Bucca, Monika Bugno-Poniewierska, Barbara Wallner, Joel Malek, Donald C. Miller, Andrew G. Clark, Douglas F. Antczak, Samantha A. Brooks
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Publicado: Nature Portfolio 2020
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Acceso en línea:https://doaj.org/article/859c1142aad7479ca7f2b0952b30f575
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spelling oai:doaj.org-article:859c1142aad7479ca7f2b0952b30f5752021-12-02T17:40:44ZGenome Diversity and the Origin of the Arabian Horse10.1038/s41598-020-66232-12045-2322https://doaj.org/article/859c1142aad7479ca7f2b0952b30f5752020-06-01T00:00:00Zhttps://doi.org/10.1038/s41598-020-66232-1https://doaj.org/toc/2045-2322Abstract The Arabian horse, one of the world’s oldest breeds of any domesticated animal, is characterized by natural beauty, graceful movement, athletic endurance, and, as a result of its development in the arid Middle East, the ability to thrive in a hot, dry environment. Here we studied 378 Arabian horses from 12 countries using equine single nucleotide polymorphism (SNP) arrays and whole-genome re-sequencing to examine hypotheses about genomic diversity, population structure, and the relationship of the Arabian to other horse breeds. We identified a high degree of genetic variation and complex ancestry in Arabian horses from the Middle East region. Also, contrary to popular belief, we could detect no significant genomic contribution of the Arabian breed to the Thoroughbred racehorse, including Y chromosome ancestry. However, we found strong evidence for recent interbreeding of Thoroughbreds with Arabians used for flat-racing competitions. Genetic signatures suggestive of selective sweeps across the Arabian breed contain candidate genes for combating oxidative damage during exercise, and within the “Straight Egyptian” subgroup, for facial morphology. Overall, our data support an origin of the Arabian horse in the Middle East, no evidence for reduced global genetic diversity across the breed, and unique genetic adaptations for both physiology and conformation.Elissa J. CosgroveRaheleh SadeghiFlorencia SchlampHeather M. HollMohammad Moradi-ShahrbabakSeyed Reza Miraei-AshtianiSalma AbdallaBen ShykindMats TroedssonMonika Stefaniuk-SzmukierAnil PrabhuStefania BuccaMonika Bugno-PoniewierskaBarbara WallnerJoel MalekDonald C. MillerAndrew G. ClarkDouglas F. AntczakSamantha A. BrooksNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 10, Iss 1, Pp 1-13 (2020)
institution DOAJ
collection DOAJ
language EN
topic Medicine
R
Science
Q
spellingShingle Medicine
R
Science
Q
Elissa J. Cosgrove
Raheleh Sadeghi
Florencia Schlamp
Heather M. Holl
Mohammad Moradi-Shahrbabak
Seyed Reza Miraei-Ashtiani
Salma Abdalla
Ben Shykind
Mats Troedsson
Monika Stefaniuk-Szmukier
Anil Prabhu
Stefania Bucca
Monika Bugno-Poniewierska
Barbara Wallner
Joel Malek
Donald C. Miller
Andrew G. Clark
Douglas F. Antczak
Samantha A. Brooks
Genome Diversity and the Origin of the Arabian Horse
description Abstract The Arabian horse, one of the world’s oldest breeds of any domesticated animal, is characterized by natural beauty, graceful movement, athletic endurance, and, as a result of its development in the arid Middle East, the ability to thrive in a hot, dry environment. Here we studied 378 Arabian horses from 12 countries using equine single nucleotide polymorphism (SNP) arrays and whole-genome re-sequencing to examine hypotheses about genomic diversity, population structure, and the relationship of the Arabian to other horse breeds. We identified a high degree of genetic variation and complex ancestry in Arabian horses from the Middle East region. Also, contrary to popular belief, we could detect no significant genomic contribution of the Arabian breed to the Thoroughbred racehorse, including Y chromosome ancestry. However, we found strong evidence for recent interbreeding of Thoroughbreds with Arabians used for flat-racing competitions. Genetic signatures suggestive of selective sweeps across the Arabian breed contain candidate genes for combating oxidative damage during exercise, and within the “Straight Egyptian” subgroup, for facial morphology. Overall, our data support an origin of the Arabian horse in the Middle East, no evidence for reduced global genetic diversity across the breed, and unique genetic adaptations for both physiology and conformation.
format article
author Elissa J. Cosgrove
Raheleh Sadeghi
Florencia Schlamp
Heather M. Holl
Mohammad Moradi-Shahrbabak
Seyed Reza Miraei-Ashtiani
Salma Abdalla
Ben Shykind
Mats Troedsson
Monika Stefaniuk-Szmukier
Anil Prabhu
Stefania Bucca
Monika Bugno-Poniewierska
Barbara Wallner
Joel Malek
Donald C. Miller
Andrew G. Clark
Douglas F. Antczak
Samantha A. Brooks
author_facet Elissa J. Cosgrove
Raheleh Sadeghi
Florencia Schlamp
Heather M. Holl
Mohammad Moradi-Shahrbabak
Seyed Reza Miraei-Ashtiani
Salma Abdalla
Ben Shykind
Mats Troedsson
Monika Stefaniuk-Szmukier
Anil Prabhu
Stefania Bucca
Monika Bugno-Poniewierska
Barbara Wallner
Joel Malek
Donald C. Miller
Andrew G. Clark
Douglas F. Antczak
Samantha A. Brooks
author_sort Elissa J. Cosgrove
title Genome Diversity and the Origin of the Arabian Horse
title_short Genome Diversity and the Origin of the Arabian Horse
title_full Genome Diversity and the Origin of the Arabian Horse
title_fullStr Genome Diversity and the Origin of the Arabian Horse
title_full_unstemmed Genome Diversity and the Origin of the Arabian Horse
title_sort genome diversity and the origin of the arabian horse
publisher Nature Portfolio
publishDate 2020
url https://doaj.org/article/859c1142aad7479ca7f2b0952b30f575
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