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Association analysis of polymorphisms of porcine LMP2 and LMP7 genes with haematological traits

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Abstract

Low molecular weight polypeptides 2 (LMP2) and low molecular weight polypeptides 7 (LMP7) are located within the major histocompatibility complex and have been associated with autoimmune disease. In this study, polymorphisms of porcine LMP2 and LMP7 genes were analyzed by PCR-SSCP and DNA sequencing methods. Four SNPs (DQ659151:g.2115T>C; DQ659151:g.4343A>G; DQ872631:g.1232C>G; DQ872631:g.2847C>T) were identified. Four SNPs of genes were analyzed for association with 22 haematological traits in Large White (n = 195), Landrace (n = 84) and Songliao Black (n = 86) pig population. Of all the 22 traits, seven were significant associated with the SNPs of LMP2/LMP7 gene (P < 0.05). They included white blood cell count (WBC) (P = 0.028), neutrophilic granulocyte count (GRAN) (P = 0.037), monocytes percentage (MO%) (P = 0.015), red blood cell (RBC) (P = 0.004), red blood cell volume distribution width (RDW) (P = 0.004), mean platelet volume (MPV) (P = 0.016) and CD4+CD8+% (P = 0.045). These results suggest LMP2/LMP7 gene should be regarded as molecular marker to estimate animal’s immune status for their effects on hematological traits.

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Acknowledgments

We thank Dr Martine Yerle of INRA, France for providing the IMpRH panel. This work is part of a research project supported by the National Key Project for Basic Research and Development Plans of China (Grant no. 2006CB102104) and the National Major Special Project of China on New Varieties Cultivation for Transgenic Organisms (No. 2009ZX08009-146B).

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Authors and Affiliations

  1. Key Laboratory Animal Genetics and Breeding of the Ministry of Agricultural, College of Animal Science and Technology, China Agricultural University, Beijing, 100193, China

    Y. Liu, Y. R. Luo, X. Lu, X. T. Qiu, J. P. Zhou, Y. F. Gong, X. D. Ding & Q. Zhang

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  1. Y. Liu
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  2. Y. R. Luo
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  3. X. Lu
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  7. X. D. Ding
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  8. Q. Zhang
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Correspondence to Q. Zhang.

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Liu, Y., Luo, Y.R., Lu, X. et al. Association analysis of polymorphisms of porcine LMP2 and LMP7 genes with haematological traits. Mol Biol Rep 38, 4455–4460 (2011). https://doi.org/10.1007/s11033-010-0574-4

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  • DOI: https://doi.org/10.1007/s11033-010-0574-4

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