Analysis of polymorphism in DNMTS genes in Sistani cattle Using PCR-SSCP Method

Document Type : Research Paper

Authors

1 M.Sc, Department of Animal Science, Faculty of Agriculture, University of Zabol, Zabol, Iran

2 Department of Animal Science, Faculty of Agriculture, University of Zabol, Zabol, Iran

3 Associate Professor of University of Zabol

4 Associate Professor, Department of Animal Science, Faculty of Agriculture, University of Zabol, Zabol, Iran

Abstract

It has been shown that the occurrence of any changes in the function of DNMTs genes has a significant effect on both the embryo development and birth weight in mammals; therefore, the aim of the present study was to investigate the presence of DNA polymorphisms in the members of DNA methyl transferase superfamily and its relationship with birth weight in Sistani cattle’s. Blood sampling was done randomly from 60 Sistani cows. DNA extraction was performed using phenol chloroform method. Candidate region for the presence of functional polymorphism within the DNMTs gene including the 114-bp fragment of the exon 33 of the DNMT1 gene, the 176-bp fragment of the intron 4 of the DNMT3a gene, and the 207-bp fragment in intron 3 of the DNMT3b gene were amplified by polymerase chain reaction. PCR-SSCP followed by polyacrylamide gels silver stain analysis was done to evaluate the presence of candidate mutations in target gens. The result analysis of all analyzed region did not show any mutations in the investigated DNMTs genes. Based on the results of this study, it seems that the lack of observation of genetic diversity in the studied regions could be related to the evolutionary selection against occurrence of specific mutations in the analyzed population. In general, based on the results of this study, analysis of genetic diversity in the studied genomic region may not be effective in identifying effective markers for breeding programs in Sistani cows.

Keywords

References

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Animal Sciences Journal
Volume 33, Issue 126
June 2020
Pages 73-82

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