Vet World Vol.15 January-2022 Article-21
Research Article
Veterinary World, 15(1): 168-172
https://doi.org/10.14202/vetworld.2022.168-172
Genetic polymorphisms of the 5' untranslated regions of the HSP70 gene in Indonesian cattle populations
2. Department of Animal Science, Faculty of Agriculture, Universitas Khairun, Ternate 97719, Indonesia.
Background and Aim: Heat shock proteins (HSPs) are a group of proteins that play a significant role in protecting cells against cellular stress. HSP70 is a conserved, sensitive, and abundant gene associated with heat stress's physiological adaptability. The objective of this study was to reveal the polymorphisms of the partial sequences of the HSP70 gene (5' untranslated region [UTR]) in seven cattle populations in Indonesia.
Materials and Methods: Polymerase chain reaction products (551 bp) of the HSP70 gene amplified from 102 animals representing seven cattle populations (Bali, Belgian Blue × Peranakan Ongole [PO] cross, Galekan, Jabres, Madura, PO, and Rambon) were sequenced by DNA sequencing method.
Results: Fourteen single-nucleotide polymorphisms (SNPs), generally found at a low frequency, were detected. Among these SNPs, only 1117G>A, 1125A>C, and 1204T>C were polymorphic in all the analyzed breeds. A Chi-square test showed that the majority of the loci were in Hardy–Weinberg equilibrium (p>0.05). Varying levels of observed (0.050-0.571) and expected heterozygosity (0.049-0.500) were noted. The polymorphism information content values (0.048-0.375) indicated that the SNPs in the HSP70 gene showed low-to-moderate polymorphism in the studied populations. Thirty-six haplotypes were defined according to the identified SNPs, of which haplotype Hap5 (CGACGAGAGTGTCC) and Hap4 (CGACGAGAGTGCCC) were generally dominant in the studied samples. The phylogenetic tree showed a close relationship between Bali and Rambon cattle and between Galekan and Jabres cattle, while the Belgian Blue × PO crossbred cattle were farther apart.
Conclusion: The polymorphisms in the 5' UTR of the HSP70 gene identified in this study should be further investigated in a larger population to unravel the association between the SNPs and thermotolerance in Indonesian local cattle populations. Keywords: cattle, heat shock protein, heat stress, polymorphism, thermotolerance.
Keywords: cattle, heat shock protein, heat stress, polymorphism, thermotolerance.
How to cite this article: Prihandini PW, Primasari A, Aryogi A, Luthfi M, Hariyono DNH (2022) Genetic polymorphisms of the 5' untranslated regions of the HSP70 gene in Indonesian cattle populations, Veterinary World, 15(1): 168-172.
Received: 03-09-2021 Accepted: 29-12-2021 Published online: 27-01-2022
Corresponding author: E-mail: peniprihandini@pertanian.go.id
DOI: 10.14202/vetworld.2022.168-172
Copyright: Prihandini, et al. This article is an open access article distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The Creative Commons Public Domain Dedication waiver (http:// creativecommons.org/publicdomain/zero/1.0/) applies to the data made available in this article, unless otherwise stated.