Genealogical analyses in open population of Silla Argentino horses belonging to the national police of Colombia

This study aimed to evaluate population parameters, genetic diversity and identify the ancestors with the highest genetic contribution of an open population of Silla Argentino horses in Colombia using pedigree data. 508 horses born between 1998 and 2018 were evaluated, called reference population (R...

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Main Authors: Jeisson León Rubio, Ricardo da Silva Faria, John Infante Gonzalez, Yuly Rincón Lozano, Pablo Dominguez-Castaño
Format: Article
Language:Spanish
Published: Asociación Peruana de Reproducción Animal 2021-12-01
Series:SPERMOVA
Subjects:
Online Access:http://spermova.pe/site2/files/Revistas/Revista%20Nro.%2011%20vol.%202/12-Leon_2021.pdf
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author Jeisson León Rubio
Ricardo da Silva Faria
John Infante Gonzalez
Yuly Rincón Lozano
Pablo Dominguez-Castaño
author_facet Jeisson León Rubio
Ricardo da Silva Faria
John Infante Gonzalez
Yuly Rincón Lozano
Pablo Dominguez-Castaño
author_sort Jeisson León Rubio
collection DOAJ
description This study aimed to evaluate population parameters, genetic diversity and identify the ancestors with the highest genetic contribution of an open population of Silla Argentino horses in Colombia using pedigree data. 508 horses born between 1998 and 2018 were evaluated, called reference population (RP). The ancestors of the RP were added, defining the total population (TP) whit 1,861 horses born since 1905. Population parameters were estimated, including inbreeding coefficient (F), effective population size (Ne), effective number of founders (fe), ancestors (fa), and founder genomes (fg) and generation interval (GIN). The GIN was 10.1 (TP) and 7.7 (RP) years. The estimate of F for the RP was 0.3%, indicating control in mattings. The Ne was 317 (RP) and 179 (TP). The probability of genes origin indicated values for fe, fa and fg of 386, 187 and 351 (TP), and 161, 64 and 56 (RP), respectively, evidencing a reduction of genetic variability in the RP. Half of the genetic variation in the equine population studied was explained by 40 ancestors. The results show loss of genetic diversity in the RP and the genetic contribution of the ancestors suggests the need to increase the number of stallions for breeding and guide mating to increase genetic diversity in the new generations of Silla Argentino horses of the Colombian National Police
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spelling doaj.art-ab67f47849064e828019a1c2694fdfcc2022-12-22T04:09:48ZspaAsociación Peruana de Reproducción AnimalSPERMOVA2223-93752308-49282021-12-0111216617210.18548/aspe/0009.22Genealogical analyses in open population of Silla Argentino horses belonging to the national police of ColombiaJeisson León Rubio0Ricardo da Silva Faria1https://orcid.org/0000-0002-4717-0563John Infante Gonzalez2https://orcid.org/0000-0002-9867-995XYuly Rincón Lozano3Pablo Dominguez-Castaño4https://orcid.org/0000-0002-5675-7702Grupo de Investigación en Ciencias Animales UNIAGRARIA, Facultad de Medicina Veterinaria, Fundación Universitaria Agraria de Colombia, Bogotá, ColombiaDepartamento de Zootecnia, Faculdade de Ciências Agrárias e Veterinárias, Universidade Estadual PaulistaUNESP, São Paulo, Brasil.Grupo de Investigación en Ciencias Animales UNIAGRARIA, Facultad de Medicina Veterinaria, Fundación Universitaria Agraria de Colombia, Bogotá, Colombia Escuela de Equitación Policial “Coronel Luis Augusto Tello Sánchez”, Bogotá, Colombia.Grupo de Investigación en Ciencias Animales UNIAGRARIA, Facultad de Medicina Veterinaria, Fundación Universitaria Agraria de Colombia, Bogotá, ColombiaThis study aimed to evaluate population parameters, genetic diversity and identify the ancestors with the highest genetic contribution of an open population of Silla Argentino horses in Colombia using pedigree data. 508 horses born between 1998 and 2018 were evaluated, called reference population (RP). The ancestors of the RP were added, defining the total population (TP) whit 1,861 horses born since 1905. Population parameters were estimated, including inbreeding coefficient (F), effective population size (Ne), effective number of founders (fe), ancestors (fa), and founder genomes (fg) and generation interval (GIN). The GIN was 10.1 (TP) and 7.7 (RP) years. The estimate of F for the RP was 0.3%, indicating control in mattings. The Ne was 317 (RP) and 179 (TP). The probability of genes origin indicated values for fe, fa and fg of 386, 187 and 351 (TP), and 161, 64 and 56 (RP), respectively, evidencing a reduction of genetic variability in the RP. Half of the genetic variation in the equine population studied was explained by 40 ancestors. The results show loss of genetic diversity in the RP and the genetic contribution of the ancestors suggests the need to increase the number of stallions for breeding and guide mating to increase genetic diversity in the new generations of Silla Argentino horses of the Colombian National Policehttp://spermova.pe/site2/files/Revistas/Revista%20Nro.%2011%20vol.%202/12-Leon_2021.pdfancestorseffective number of foundersequineinbreedingpopulation parameters
spellingShingle Jeisson León Rubio
Ricardo da Silva Faria
John Infante Gonzalez
Yuly Rincón Lozano
Pablo Dominguez-Castaño
Genealogical analyses in open population of Silla Argentino horses belonging to the national police of Colombia
SPERMOVA
ancestors
effective number of founders
equine
inbreeding
population parameters
title Genealogical analyses in open population of Silla Argentino horses belonging to the national police of Colombia
title_full Genealogical analyses in open population of Silla Argentino horses belonging to the national police of Colombia
title_fullStr Genealogical analyses in open population of Silla Argentino horses belonging to the national police of Colombia
title_full_unstemmed Genealogical analyses in open population of Silla Argentino horses belonging to the national police of Colombia
title_short Genealogical analyses in open population of Silla Argentino horses belonging to the national police of Colombia
title_sort genealogical analyses in open population of silla argentino horses belonging to the national police of colombia
topic ancestors
effective number of founders
equine
inbreeding
population parameters
url http://spermova.pe/site2/files/Revistas/Revista%20Nro.%2011%20vol.%202/12-Leon_2021.pdf
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