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Genetic consistency between gait analysis by accelerometry and evaluation scores at breeding shows for the selection of jumping competition horses

The aim was to assess the efficiency of gaits characteristics in improving jumping performance of sport horses and confront accelerometers and judge scores for this purpose. A sample of 1,477 young jumping horses were measured using accelerometers for walk, trot, and canter. Of these, 702 were genot...

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Autores principales: Ricard, Anne, Dumont Saint Priest, Bernard, Chassier, Marjorie, Sabbagh, Margot, Danvy, Sophie
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Public Library of Science 2020
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Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7743953/
https://www.ncbi.nlm.nih.gov/pubmed/33326505
http://dx.doi.org/10.1371/journal.pone.0244064
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author Ricard, Anne
Dumont Saint Priest, Bernard
Chassier, Marjorie
Sabbagh, Margot
Danvy, Sophie
author_facet Ricard, Anne
Dumont Saint Priest, Bernard
Chassier, Marjorie
Sabbagh, Margot
Danvy, Sophie
author_sort Ricard, Anne
collection PubMed
description The aim was to assess the efficiency of gaits characteristics in improving jumping performance of sport horses and confront accelerometers and judge scores for this purpose. A sample of 1,477 young jumping horses were measured using accelerometers for walk, trot, and canter. Of these, 702 were genotyped with 541,175 SNPs after quality control. Dataset of 26,914 horses scored by judges in breeding shows for gaits and dataset of 142,682 horses that performed in jumping competitions were used. Analysis of accelerometric data defined three principal components from 64% to 89% of variability explained for each gait. Animal mixed models were used to estimate genetic parameters with the inclusion to up 308,105 ancestors for the relationship matrix. Fixed effects for the accelerometric variables included velocity, gender, age, and event. A GWAS was performed on residuals with the fixed effect of each SNP. The GWAS did not reveal other QTLs for gait traits than the one related to the height at withers. The accelerometric principal components were highly heritable for the one linked to stride frequency and dorsoventral displacement at trot (0.53) and canter (0.41) and moderately for the one linked to longitudinal activities (0.33 for trot, 0.19 for canter). Low heritabilities were found for the walk traits. The genetic correlations of the accelerometric principal components with the jumping competition were essentially nil, except for a negative correlation with longitudinal activity at canter (-0.19). The genetic correlation between the judges’ scores and the jumping competition reached 0.45 for canter (0.31 for trot and 0.17 for walk). But these correlations turned negative when the scores were corrected for the known parental breeding value for competition at the time of the judging. In conclusion, gait traits were not helpful to select for jumping performances. Different gaits may be suitable for a good jumping horse.
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spelling pubmed-77439532020-12-31 Genetic consistency between gait analysis by accelerometry and evaluation scores at breeding shows for the selection of jumping competition horses Ricard, Anne Dumont Saint Priest, Bernard Chassier, Marjorie Sabbagh, Margot Danvy, Sophie PLoS One Research Article The aim was to assess the efficiency of gaits characteristics in improving jumping performance of sport horses and confront accelerometers and judge scores for this purpose. A sample of 1,477 young jumping horses were measured using accelerometers for walk, trot, and canter. Of these, 702 were genotyped with 541,175 SNPs after quality control. Dataset of 26,914 horses scored by judges in breeding shows for gaits and dataset of 142,682 horses that performed in jumping competitions were used. Analysis of accelerometric data defined three principal components from 64% to 89% of variability explained for each gait. Animal mixed models were used to estimate genetic parameters with the inclusion to up 308,105 ancestors for the relationship matrix. Fixed effects for the accelerometric variables included velocity, gender, age, and event. A GWAS was performed on residuals with the fixed effect of each SNP. The GWAS did not reveal other QTLs for gait traits than the one related to the height at withers. The accelerometric principal components were highly heritable for the one linked to stride frequency and dorsoventral displacement at trot (0.53) and canter (0.41) and moderately for the one linked to longitudinal activities (0.33 for trot, 0.19 for canter). Low heritabilities were found for the walk traits. The genetic correlations of the accelerometric principal components with the jumping competition were essentially nil, except for a negative correlation with longitudinal activity at canter (-0.19). The genetic correlation between the judges’ scores and the jumping competition reached 0.45 for canter (0.31 for trot and 0.17 for walk). But these correlations turned negative when the scores were corrected for the known parental breeding value for competition at the time of the judging. In conclusion, gait traits were not helpful to select for jumping performances. Different gaits may be suitable for a good jumping horse. Public Library of Science 2020-12-16 /pmc/articles/PMC7743953/ /pubmed/33326505 http://dx.doi.org/10.1371/journal.pone.0244064 Text en © 2020 Ricard et al http://creativecommons.org/licenses/by/4.0/ This is an open access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/) , which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
spellingShingle Research Article
Ricard, Anne
Dumont Saint Priest, Bernard
Chassier, Marjorie
Sabbagh, Margot
Danvy, Sophie
Genetic consistency between gait analysis by accelerometry and evaluation scores at breeding shows for the selection of jumping competition horses
title Genetic consistency between gait analysis by accelerometry and evaluation scores at breeding shows for the selection of jumping competition horses
title_full Genetic consistency between gait analysis by accelerometry and evaluation scores at breeding shows for the selection of jumping competition horses
title_fullStr Genetic consistency between gait analysis by accelerometry and evaluation scores at breeding shows for the selection of jumping competition horses
title_full_unstemmed Genetic consistency between gait analysis by accelerometry and evaluation scores at breeding shows for the selection of jumping competition horses
title_short Genetic consistency between gait analysis by accelerometry and evaluation scores at breeding shows for the selection of jumping competition horses
title_sort genetic consistency between gait analysis by accelerometry and evaluation scores at breeding shows for the selection of jumping competition horses
topic Research Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7743953/
https://www.ncbi.nlm.nih.gov/pubmed/33326505
http://dx.doi.org/10.1371/journal.pone.0244064
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