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Chilean Journal of Agricultural Research
Instituto de Investigaciones Agropecuarias, INIA
ISSN: 0718-5820 EISSN: 0718-5820
Vol. 76, No. 1, 2016, pp. 40-47
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Bioline Code: cj16006
Full paper language: English
Document type: Research Article
Document available free of charge
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Chilean Journal of Agricultural Research, Vol. 76, No. 1, 2016, pp. 40-47
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Genetic diversity of Colombian sheep by microsatellite markers
Ocampo, Ricardo; Cardona, Henry & Martínez, Rodrigo
Abstract
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
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