The EDN2 rs110287192 gene polymorphism is associated with paratuberculosis susceptibility in multibreed cattle population

PLoS One. 2020 Sep 3;15(9):e0238631. doi: 10.1371/journal.pone.0238631. eCollection 2020.

Abstract

Paratuberculosis (pTB), also known as Johne's disease (JD), is a contagious, chronic, and granulomatous inflammatory disease of the intestines of ruminants which is caused by Mycobacterium avium subsp. paratuberculosis (MAP) infection, resulting in billions of dollars in economic losses worldwide. Since, currently, no effective cure is available for MAP infection, it is important to explore the genetic variants that affect the host MAP susceptibility. The aim of this study was to analyze a potential association between EDN2 synonymous gene mutations (rs110287192, rs109651404 and rs136707411), that modifies susceptibility to pTB. EDN2 rs110287192, rs109651404 and rs136707411 mutations were genotyped in 68 infected and 753 healthy animals from East Anatolian Red crossbred, Anatolian Black crossbred and Holstein breed cattle by using Custom TaqMan SNP Genotyping Assays. For pTB status, serum antibody levels S/P ≥ 1.0 were assessed in carriers of the different EDN2 genotypes. EDN2 rs110287192 mutation showed a significant association with bovine pTB (adj. p < 0.05). For rs110287192 locus, the odd ratios for GG and TG genotypes versus TT genotypes were 1.73; (95% CI = 0.34-8.59) and 0.53 (95% CI = 0.12-2.37) respectively, which indicated that proportion of TG heterozygotes were significantly higher in control animals as compared to pTB animals. On the other hand, while rs136707411 mutation showed a suggestive association with pTB status in the examined cattle population (nominal p < 0.05); no association was detected between rs109651404 genotypes and pTB status. Selecting animals against rs110287192-GG genotype may decrease the risk of pTB in cattle of the Bos taurus taurus subspecies.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Alleles
  • Animals
  • Breeding*
  • Cattle / genetics*
  • Cattle / microbiology*
  • Endothelins / genetics*
  • Genetic Predisposition to Disease*
  • Logistic Models
  • Paratuberculosis / genetics*
  • Paratuberculosis / microbiology
  • Polymorphism, Single Nucleotide / genetics*

Substances

  • Endothelins

Grants and funding

This research was financially supported by the Turkish Research Council (Türkiye Bilimsel ve Teknolojik Araştirma Kurumu (TÜBİTAK)) grant number 218O128 to MUC and the funder had no role in study design, data collection and analysis, decision to publish, or preparation of the manuscript.