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KMID : 1005220160310030287
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Journal of Embryo Transfer
2016 Volume.31 No. 3 p.287 ~ p.291
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Investigation on Association of ESR2 polymorphism as a Candidate Gene for Duroc sperm motility and kinematic characteristics
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Jeong Yong-Dae
Jeong Jin-Young
Sa Soo-Jin
Kim Ki-Hyun
Cho Eun-Seok
Yu Dong-Jo
Choi Jung-Woo
Jang Hyun-Jun
Woo Jae-Seok
Park Sung-Kwon
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Abstract
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For evaluating the boar semen quality, sperm motility (MOT) is an important parameter because the movement of spermatozoa indicates active metabolism, membrane integrity and fertilizing capacity. Estrogen receptors 2(ESR2) is involved in estrogen related apoptosis in cell cycle spermatogenesis, but their functions have not been confirmed in pig until now. Therefore, this study was conducted to analyze their association with sperm motility and kinematic characteristics. DNA samples from 105 Duroc pigs with records of semen motility and kinematic characteristics [Total motile spermatozoa (MOT), Curvilinear velocity(VCL), Straight-line velocity(VSL), the ratio between VSL and VCL(LIN), Amplitude of Lateral Head displacement(ALH)] were analyzed. A SNP in coding region of ESR2 g.35547A > G in exon 5 was associated with MOT (p < 0.05) in Duroc population. Therefore, we suggest that the porcine ESR2 gene may be used as a molecular marker for Duroc boar semen quality, although its functional effects were not defined yet. These results might shed new light on the roles of ESR2 in spermatogenesis as candidate gene for boar fertility, but still the lack of association across populations should be considered.
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KEYWORD
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Estrogen Receptor 2 , Boar sperm motility and kinematic characteristics , Polymorphism
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