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Diversity and effective population size of four horse breeds from microsatellite DNA markers in South-Central Mexico

by Arellano-Vera, Williams , Velazquez, Miguel Abraham , Parra-Bracamonte, Gaspar Manuel , Ambriz-Morales, Pascuala , Vázquez-Armijo, José Fernando , Sifuentes-Rincón, Ana María , Tinoco-Jaramillo, José Luis , Moreno-Medina, Victor Ricardo

in Animal breeding / Animal populations / Animals / Deoxyribonucleic acid / DNA / Evolution / Genetic analysis / Genetic aspects / Genetic diversity / Genetic research / Genetic structure / Horse racing / Horses / Identification and classification / Integrity / Markers / Microsatellites (Genetics) / Population / Population genetics / Population number / Population structure / Populations / Risk assessment / Values

2017

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Diversity and effective population size of four horse breeds from microsatellite DNA markers in South-Central Mexico

2017

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Diversity and effective population size of four horse breeds from microsatellite DNA markers in South-Central Mexico

2017

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Journal Article

Diversity and effective population size of four horse breeds from microsatellite DNA markers in South-Central Mexico

Arellano-Vera, Williams,

Velazquez, Miguel Abraham,

Parra-Bracamonte, Gaspar Manuel,

Ambriz-Morales, Pascuala,

Vázquez-Armijo, José Fernando,

Sifuentes-Rincón, Ana María,

Tinoco-Jaramillo, José Luis,

Moreno-Medina, Victor Ricardo

2017

Overview

The South-Central region of Mexico has experienced a sizeable introduction of purebred horses for recreational aims. A study was designed to assess effective population sizes and genetic diversity and to verify the genetic integrity of four horse breeds. Using a 12-microsatellite panel, Quarter Horse, Azteca, Thoroughbred and Creole (CRL) horses were sampled and analysed for diversity and genetic structure. Genetic diversity parameters showed high numbers of heterozygous horses but small effective population sizes in all breeds. Population structure results suggested some degree of admixture of CRL with the other reference breeds. The highly informative microsatellite panel allowed the verification of diversity in introduced horse populations and the confirmation of small effective population sizes, which suggests a risk for future breed integrity.

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Publisher

Copernicus GmbH,Copernicus Publications

Subject

Animal breeding

/ Animal populations

/ Animals

/ Deoxyribonucleic acid

/ DNA

/ Evolution

/ Genetic analysis