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PRINT: ISSN 2221-1896
ONLINE : ISSN 2223-0343
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Genetic polymorphism of transferrin gene in Najdi sheep in Iraq
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Talib Ahmed Jaayid |
Genetic Engineering Lab., College
of Agriculture, Basrah
University
(UoB),
Basrah
320,
Iraq
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Abstract |
The study investigated the existence of polymorphism at transferrin (Tf)
locus in Najdi sheep breed. A polyacrylamide gel electrophoresis under
alkaline condition was used to distinguish Najdi Tf alleles. Analysis of
35 animals revealed that all animals were polymorphic, showing many
genotypes with clear biodiversity in the Tf gene. Six Tf genotypes
consisting of three homozygote types (AA, BB and CC) and three
heterozygote types (AB, AC and BC) were detected. These genotypes are
controlled by codominant autosomal gene according to the Mendelian laws
of inheritance. The highest gene frequencies were calculated as 0.47 for
Tf B. Differences between expected and observed number of tf genotypes
were significant. Therefore, polymorphism of sheep tfs can be used for
the identification of its offspring and its possible benefit in genetic
improvement programs of domestic animals and the conservation of
bio-diversity. This will also be useful in genetic improvement process
by enhancing selection and breeding programs.
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Keywords:
Polymorphism; transferrin gene; Najdi sheep breed; polyacrylamide gel
electrophoresis |
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To cite this article:
Jaayid TA,
2014.
Genetic polymorphism of transferrin gene in Najdi sheep in Iraq.
Res.
Opin. Anim. Vet. Sci., 4(11): 578-581. |
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