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Effect of selected single nucleotide polymorphisms in SLC11A1, ANKRA2, IFNG and PGLYRP1 genes on host susceptibility to Mycobacterium avium subspecies paratuberculosis infection in Indian cattle

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Abstract

Paratuberculosis (PTB) is a chronic infectious enteritis of ruminants, caused by Mycobacterium avium subspecies paratuberculosis (MAP) that brings huge economic loss to the dairy farmers. The study was conducted to explore the association of selected SNPs in IFNG, SLC11A1, ANKRA2 and PGLYRP1 genes with resistance to PTB disease in Indian cattle population. A case-control resource population was established based on the results of diagnostic tests used for detection of MAP infection status viz. ELISA, Johnin PPD test, faecal microscopy and IS900 blood PCR. The PCR-RFLP method was used for genotyping of SNPs. SNPs rs109453173 in SLC11A1, rs110853455 in IFNG and rs41933863 in ANKRA2 genes were significantly (P<0.05) associated with resistance to MAP infection. For SNP rs109453173, GG genotype and G allele was found to be associated with resistance against MAP infection than CC and CG genotypes and C allele, respectively. For SNP rs110853455, AG genotype was found to be associated with susceptibility to MAP infection than AA and GG genotype. For SNP rs41933863, the AG genotype provided three and six times more resistance against MAP infection than GG and AA genotype. The results of this study are suggestive of SNPs rs109453173, rs110853455 and rs41933863 as potential markers for screening MAP resistant cattle and a breeding programme favouring GG genotype and G allele for rs109453173, AG genotype for rs41933863 and against AG genotype for rs110853455 might confer resistance against MAP infection in Indian cattle. However, investigation of these SNPs in an independent and larger population will warrant the strength of association for resistance against MAP infection in cattle.

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Acknowledgements

Authors are thankful to Director, ICAR-Indian Veterinary Research Institute, Izatnagar, India for providing necessary facilities for conducting this work.

Funding

The work was supported by the Director, ICAR-Indian Veterinary Research Institute, Izatnagar, India for providing necessary facilities and funding of this work with grant no. IXX09774 to Dr. Ran Vir Singh.

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Contributions

RVS, SAK and AC conceived and designed the study and provided resources. BG, SAK, SUK and AC screened the animals and performed genotyping experiments. BG and SVS performed IS900 blood PCR. AK, JB and SAK analysed the data. BG and SAK wrote the original draft. SAK and JB reviewed and edited the original draft. All authors discussed the results, edited the manuscript and approved the final version of the manuscript for publication.

Corresponding authors

Correspondence to Ran Vir Singh or Satish Kumar.

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The authors do not have any conflict of interest.

Ethics approval

All the animal experimentation had prior approval of the Institutional Animal Ethics Committee (ICAR-Indian Veterinary Research Institute, Izatnagar, India), which follows the guidelines of CPCSEA (Committee for the Purpose of Control and Supervision of Experimentation in Animals), Government of India. The approval of IAEC was given for the experiments conducted in the project vide IXX09774.

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Supplementary Information

Supplementary material Figure 1

Genotypic profile of SNP rs109453173 in SLC11A1 gene by PCR-RFLP with 100-bp marker (M represents marker lane). (DOCX 161 kb)

Supplementary material Figure 2

Genotypic profile of SNP rs41933863 in ANKRA2 gene by PCR-RFLP with 100-bp marker (M represents marker lane). (DOCX 68 kb)

Supplementary material Table 1

(DOCX 16 kb)

Supplementary material Table 2

(DOCX 15 kb)

Supplementary material Table 3

(DOCX 13 kb)

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Gopi, B., Vir Singh, R., Kumar, S. et al. Effect of selected single nucleotide polymorphisms in SLC11A1, ANKRA2, IFNG and PGLYRP1 genes on host susceptibility to Mycobacterium avium subspecies paratuberculosis infection in Indian cattle. Vet Res Commun 46, 209–221 (2022). https://doi.org/10.1007/s11259-021-09849-5

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  • DOI: https://doi.org/10.1007/s11259-021-09849-5

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