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Whole-Genome Methylation Analysis Reveals Epigenetic Variation in Cloned and Donor Pigs

Overview
Journal Front Genet
Date 2020 Mar 11
PMID 32153632
Citations 11
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Abstract

Somatic cloning has had a significant impact on the life sciences and is important in a variety of processes, including medical research and animal production. However, the application of somatic cloning has been limited due to its low success rate. Therefore, potential epigenetic variations between cloned and donor animals are still unclear. DNA methylation, one of the factors which is responsible for phenotypic differences in animals, is a commonly researched topic in epigenetic studies of mammals. To investigate the epigenetic variations between cloned and donor animals, we selected blood and ear fibroblasts of a donor pig and a cloned pig to perform whole-genome bisulfite sequencing (WGBS). A total of 215 and 707 differential methylation genes (DMGs) were identified in blood and ear fibroblasts, respectively. Functional annotation revealed that DMGs are enriched in many pathways, including T/B or natural killer (NK) cell differentiation, oocyte maturation, embryonic development, and reproductive hormone secretion. Moreover, 22 DMGs in the blood and 75 in the ear were associated with immune responses (e.g., , , , , , and ). We also found that 18 DMGs in blood and 53 in ear fibroblasts were involved in reproduction. Understanding the expression patterns of DMGs, especially in relation to immune responses and reproduction, will reveal insights that will aid the advancement of future somatic cloning techniques in swine.

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References
1.
Kaur G, Trowsdale J, Fugger L . Natural killer cells and their receptors in multiple sclerosis. Brain. 2012; 136(Pt 9):2657-76. PMC: 3754456. DOI: 10.1093/brain/aws159. View

2.
Jones P, Takai D . The role of DNA methylation in mammalian epigenetics. Science. 2001; 293(5532):1068-70. DOI: 10.1126/science.1063852. View

3.
Rideout 3rd W, Eggan K, Jaenisch R . Nuclear cloning and epigenetic reprogramming of the genome. Science. 2001; 293(5532):1093-8. DOI: 10.1126/science.1063206. View

4.
Shibata M, Otake M, Tsuchiya S, Chikyu M, Horiuchi A, Kawarasaki T . Reproductive and growth performance in Jin Hua pigs cloned from somatic cell nuclei and the meat quality of their offspring. J Reprod Dev. 2006; 52(5):583-90. DOI: 10.1262/jrd.18004. View

5.
Pacheco Y, McLean A, Rohrbach J, Porichis F, Kaufmann D, Kavanagh D . Simultaneous TCR and CD244 signals induce dynamic downmodulation of CD244 on human antiviral T cells. J Immunol. 2013; 191(5):2072-81. PMC: 3777852. DOI: 10.4049/jimmunol.1300435. View