Journals / Kafkas Üniversitesi Veteriner Fakültesi Dergisi / 2016 / Cilt: 22 - Sayı: 3

MHC-DRB1/DQB1 Gen Polimorfizmi ve Çin Merinos Koyununda Kistik Echinococcosise Dirençle İlişkisi

MHC-DRB1/DQB1 Genes Polymorphism and Its Association with Resistance to Cystic Echinococcosis in Chinese Merino Sheep

Pages
339–346
DOI
—
🏛️Bibliographic metadata and full text access for this article are provided via DergiPark.
DergiPark Record ↗
✨

AI Summary & Key Takeaways

AI Insight
⚡ TL;DR(Too Long; Didn't Read)

The results showed thatthere were 53 genotypes controlled by 22 alleles in the DRB1 gene and 47 genotypes controlled by 17 alleles in the DQB1 gene.

📌 3 Key Takeaways

🎯
Objective & Hypothesis:In this study, we used the single strand conformation polymorphism (SSCP) method to analyze the associations between polymorphisms of exon 2 of the DRB1 and DQB1 genes and Cystic Echinococcosis (CE) in Chinese Merino sheep.
📊
Key Findings & Data:We examined 96 CE positive sheep and 115 negative sheep in this study.
💡
Conclusion & Impact:The results showed thatthere were 53 genotypes controlled by 22 alleles in the DRB1 gene and 47 genotypes controlled by 17 alleles in the DQB1 gene.
🔬Design:Research Article
📍Scope:Comprehensive Sample
⚙️Variables:Domain Parameters

Abstract

In this study, we used the single strand conformation polymorphism (SSCP) method to analyze the associations between polymorphisms of exon 2 of the DRB1 and DQB1 genes and Cystic Echinococcosis (CE) in Chinese Merino sheep. We examined 96 CE positive sheep and 115 negative sheep in this study. The results showed thatthere were 53 genotypes controlled by 22 alleles in the DRB1 gene and 47 genotypes controlled by 17 alleles in the DQB1 gene. The comparison of allele frequencies in the CE positive and negative animals revealed that DRB1 alleles k (P<0.05), q , t (P<0.01) and alleles a , l (P<0.01). These results indicate a strong association between these alleles k,q,t and CE resistance, the alleles a,l are associated with CE susceptibility. We analyzed the DRB1 genotype frequencies and found that the genotypes KK and TT (P<0.05) are associated with CE resistance, while AA, LL (P<0.01), and AL (P<0.05) were related to CE susceptibility. In DQB1 exon 2 the d and e alleles (P<0.01) were related to CE resistance, while c and k (P<0.01) were significantly related to CE susceptibility. We analyzed the DQB1 genotype frequencies and found that DD and EG (P<0.01) were associated with CE resistance, while genotypes CC, KK, and CK (P<0.01) were associated with CE susceptibility. Using haplotype analysis and artificially infection tests with Echinococcus granulosus (EG), we found that the DRB1-TT/DQB1-EE was a CE resistant haplotype in Chinese Merino sheep.

Özet

Bu çalışmada tek sarmal konformasyon polimorfizm (SSCP) metodu kullanılarak DRB1 ve DQB1 genlerinin ekzon 2'leri ile Çin Merinos koyununda Kistik Echinococcosis (CE) polimorfizmleri arasındaki ilişki araştırıldı. Çalışmada 96 CE pozitif ve 115 negatif koyun kullanıldı. DRB1 geninde 22 allel tarafından kontrol edilen 53 genotip ile DQB1 geninde 17 allel tarafından kontrol edilen 47 genotip bulunduğu tespit edildi. CE pozitif ve negatif hayvanlarda allel frekansları karşılaştırıldığında DRB1 allel k (P<0.05), q, t (P<0.01) ve a, l (P<0.01). Elde edilen bulgular doğrultusunda CE direnci ile k, q, t allelleri arasında güçlü ilişki olduğu ve a, 1 allellerinin CE duyarlılığı ile ilgili olduğu belirlendi. DRB1 genotip frekansları analiz edildiğinde KK ve TT genotiplerinin (P<0.05) CE direnci ile ilişkili olduğu, AA, LL (P<0.01) ve AL (P<0.05)'nin ise CE duyarlılığı ile ilişkili olduğu tespit edildi. DQB1 ekzon 2'de d ve e allelleri (P<0.01) CE direnci ile ilişkili iken c ve k (P<0.01) anlamlı derecede CE duyarlılığı ile ilişkiliydi. DQB1 genotip frekansları analiz edildiğinde DD ve EG (P<0.01) CE direnci ile ilişkili iken CC, KK ve CK (P<0.01) genotipleri CE duyarlılığı ile ilişkili bulundu. Haplotip analizi ve Echinococcus granulosus (EG) ile deneysel enfeksiyon testi kullanılarak DRB1-TT/DQB1-EE Çin Merinos koyununda CE dirençli haplotip olarak belirlendi.

🔖

Cite This Article

SHEN, H., WANG, Z., WANG, X., ZHANG, Y., JIANG, S., LI, X., JIA, B. (2016). MHC-DRB1/DQB1 Gen Polimorfizmi ve Çin Merinos Koyununda Kistik Echinococcosise Dirençle İlişkisi. Kafkas Üniversitesi Veteriner Fakültesi Dergisi, Cilt: 22 - Sayı: 3, 339–346. https://ajindex.com/articles/274261

📄 Full Text PDF Viewer

📄

PDF görüntüleyici hazırlanıyor...

References (4)

  1. Palti Y, Nichols KM, Waller KI, Parsons JE, Thorgaard GH: Association between DNA polymorphisms tightly linked to MHC class II genes and IHN virus resistance in backcrosses of rainbow and cutthroat trout. Aquaculture,, 283-289, 2001. DOI: 10.1016/S0044-8486(00)00526-3
  2. Oppelt C, Starkloff A, Rausch P, Von Holst D, Rodel HG: Major histo- compatibility complex variation and age-specific endoparasite load in subadult European rabbits. Molecular Ecology, 19, 4155-4167, 2010. DOI: 1111/j.1365-294X.2010.04766.x Janeway CA, Travers P, Walport M, Shlomchik M: Immunobiology. The Immune System in Health and Disease. Grand Science, New York, 2001.
  3. Rothbard JB, Gefter ML: Interactions between immunogenic peptides and MHC proteins. Annu Rev Immunol, 9, 527-565, 1991. DOI: 10.1146/annurev. iy.09.040191.002523 Lanzavecchia A: Receptor-mediated antigen uptake and its effect on antigen presentation to class II-restricted T lymphocytes. Annu Rev Immunol,, 773-793, 1990. DOI: 10.1146/annurev.immunol.8.1.773 Konig R, Houng LY, Germain RN: MHC class II interaction with CD4 mediated by a region analogous to the MHC class I binding site for CD8. Nature,, 796-798, 1992. DOI: 10.1038/356796a0 Summers K1, McKeon S, Sellars J, Keusenkothen M, Morris J: Parasitic exploitation as an engine of diversity. Biol Rev, 78, 639-675, 2003. DOI: 10.1017/ S146479310300616X Bergelson J, Kreitman M, Stahl EA, Tian D: Evolutionary dynamics of plant R-genes. Science, 292, 2281-2285, 2001. DOI: 10.1126/science.1061337 Hedrick PW, Kim TJ: Genetics of complex polymorphisms, parasites and maintenance of the major histocompatibility complex variation. In, Singh RS, Krimbas CB (Eds): Evolutionary Genetics: From Molecules to Morphology. 204-, Cambridge, Cambridge University Press, 2000.
  4. Penn DJ, Damijanovich K, Potts WK: MHC heterozygosity confers a selective advantage against multiple-strain infections. Proc the Natl Acad Sci USA, 99, 11260-11264, 2002. DOI: 10.1073/pnas.162006499 Dukkipati VSR, Blair HT, Garrick DJ, Lopez-Villalobos N, Whittington RJ: Association of microsatellite polymorphisms with immune responses to a killed Mycobacterium avium subsp. paratuberculosis vaccine in Merino sheep. New Zealand Vet J, 58, 237-245, 2010. DOI: 10.1080/ Dukkipati VSR, Blair HT, Garrick DJ, Murray A: Ovar-Mhc--ovine major histocompatibility complex: role in genetic resistance to diseases. New Zealand Vet J, 54, 153-160, 2006. DOI: 10.1080/00480169.2006.36689 Krawczyk A, Slota E: Genetic markers to gastrointe