Genetic diversity and population structure in hair sheep from the Colombian Caribbean Region

Authors

  • Jhon Jacobo Cañas-Alvarez Corporación Colombiana de Investigación Agropecuaria, Centro de Investigación Motilonia, Cesar, Colombia https://orcid.org/0000-0002-8101-8602
  • Erly Luisana Carrascal-Triana Corporación Colombiana de Investigación Agropecuaria. Centro de Investigación Turipaná, Córdoba, Colombia https://orcid.org/0000-0002-4947-4093
  • Natalia Herrera Pérez Corporación Colombiana de Investigación Agropecuaria. Centro de Investigación Turipaná, Córdoba, Colombia https://orcid.org/0000-0001-8182-9440
  • Viviana Rua Bustamante Corporación Colombiana de Investigación Agropecuaria, Centro de Investigación Motilonia, Cesar, Colombia https://orcid.org/0000-0003-0791-4406
  • William Burgos-Paz Corporación Colombiana de Investigación Agropecuaria - AGROSAVIA. Centro de Investigación Tibaitatá, Bogotá, Colombia https://orcid.org/0000-0001-6560-4233

DOI:

https://doi.org/10.15381/rivep.v34i3.23847

Keywords:

genetic diversity, population structure, crossbreeding, sheep

Abstract

The sheep populations of the Colombian Caribbean Region are characterized by having a high phenotypic heterogeneity mainly due to the use of Creole animals in crossbreeding with exotic breeds. The aim of this study was to estimate the genetic diversity and the population structure of sheep in this region. In total, 459 sheep from 26 farms in 19 municipalities were selected. The DNA samples were genotyped with the ovine low-density chip (15K). Analyses of molecular variance, genetic diversity and population structure were performed. At the phenotypic level, 65.8% of the sampled animals were assigned to the Criollo population, while 15.7% showed signs of introgression with other commercial breeds (mestizos). The populations presented a high degree of genetic diversity within individuals (90.6%) and low levels of genetic variation between populations (FST = 0.075). This low differentiation, together with the low levels of genetic variation between populations, could be attributed to a lack of selection pressure and the existence of gene flow (crossbreeding) between populations.

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Published

2023-06-29

Issue

Vol. 34 No. 3 (2023)

Section

Artículos Primarios

License

Copyright (c) 2023 Jhon Jacobo Cañas-Alvarez, Erly Luisana Carrascal-Triana, Natalia Herrera Pérez, Viviana Rua Bustamante, William Burgos-Paz

Creative Commons License

This work is licensed under a Creative Commons Attribution 4.0 International License.

AUTHORS RETAIN THEIR RIGHTS:

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How to Cite

Cañas-Alvarez, J. J., Carrascal-Triana, E. L., Herrera Pérez, N., Rua Bustamante, V., & Burgos-Paz, W. (2023). Genetic diversity and population structure in hair sheep from the Colombian Caribbean Region. Revista De Investigaciones Veterinarias Del Perú, 34(3), e23847. https://doi.org/10.15381/rivep.v34i3.23847