SciELO - Scientific Electronic Library Online

 
vol.76 issue1Milk production, grazing behavior and nutritional status of dairy cows grazing two herbage allowances during winterInsecticidal activity of powder and essential oil of Cryptocarya alba (Molina) Looser against Sitophilus zeamais Motschulsky author indexsubject indexarticles search
Home Pagealphabetic serial listing  

Services on Demand

Journal

Article

Indicators

Related links

  • On index processCited by Google
  • Have no similar articlesSimilars in SciELO
  • On index processSimilars in Google

Share


Chilean journal of agricultural research

On-line version ISSN 0718-5839

Abstract

OCAMPO, Ricardo; CARDONA, Henry  and  MARTINEZ, Rodrigo. Genetic diversity of Colombian sheep by microsatellite markers. Chilean J. Agric. Res. [online]. 2016, vol.76, n.1, pp.40-47. ISSN 0718-5839.  http://dx.doi.org/10.4067/S0718-58392016000100006.

In Colombia the sheep production systems are managed under extensive conditions and mainly correspond to peasant production systems so their genetic management has led to increased homozygosity and hence productivity loss. The aim of this study was to determine the genetic diversity in 549 individuals corresponding to 13 sheep breeds in Colombia, using a panel of 11 microsatellite molecular markers. One hundred and fifty seven alleles were found (average of 14.27 alleles/locus), with a range of observed and expected heterozygosity from 0.44 to 0.84 and 0.67 to 0.86, respectively. Thirty-three of 143 Hardy Weinberg tests performed showed significant deviations (p < 0.05) due to a general lack of heterozygous individuals. The Fis ranged from 0.01 in Corriedale to 0.15 for the Persian Black Head breed, suggesting that there are presenting low to moderate levels of inbreeding. Overall, Colombian sheep showed high levels of genetic diversity which is very important for future selection and animal breeding programs.

Keywords : DNA; genetic diversity; microsatellite; Colombian sheep.

        · text in English     · English ( pdf )

 

Creative Commons License All the contents of this journal, except where otherwise noted, is licensed under a Creative Commons Attribution License