[1]王秋实,汪琴,韦伟,等.ACSF2启动子区c.-751 A>C突变影响扬州鹅产蛋性能作用机制研究[J].南京农业大学学报,2021,44(3):533-540.[doi:10.7685/jnau.202002028]
 WANG Qiushi,WANG Qin,WEI Wei,et al.The research on the mechanism of the effect of c.-751 A>C mutation in ACSF2 promoter on egg-laying performance of Yangzhou goose[J].Journal of Nanjing Agricultural University,2021,44(3):533-540.[doi:10.7685/jnau.202002028]

ACSF2启动子区c.-751 A>C突变影响扬州鹅产蛋性能作用机制研究()




The research on the mechanism of the effect of c.-751 A>C mutation in ACSF2 promoter on egg-laying performance of Yangzhou goose
王秋实 汪琴 韦伟 张鑫宝 夏梦圆 张立凡 陈杰
南京农业大学动物科技学院, 江苏 南京 210095
WANG Qiushi WANG Qin WEI Wei ZHANG Xinbao XIA Mengyuan ZHANG Lifan CHEN Jie
College of Animal Science and Technology, Nanjing Agricultural University, Nanjing 210095, China
ACSF2SNPpromoterYangzhou gooselaying performance
[目的] 本试验旨在研究酰基辅酶A合成酶家族成员2(ACSF2)基因启动子区突变c.-751 A>C与扬州鹅产蛋性能的相关性,并分析该突变位点对基因表达的调控作用。[方法] 利用等位基因特异PCR (AS-PCR)在343个扬州鹅个体中对c.-751 A>C位点进行基因型分析,并与产蛋性能关联分析;利用荧光定量PCR (qPCR)和荧光素酶表达载体检测AA型和CC型启动子活性差异;通过ACSF2过表达试验分析该基因对颗粒细胞能量代谢途径及鹅产蛋性能的影响。[结果] AA基因型个体产蛋性能显著优于CC基因型个体(P<0.05),与AC基因型个体的产蛋性能没有显著差异;qPCR结果表明AA基因型个体卵巢组织中ACSF2基因mRNA表达量显著低于CC基因型个体(P<0.01);荧光素酶表达载体的转录活性检测结果同样表明AA型启动子活性显著低于CC型。在扬州鹅卵泡颗粒细胞中过表达ACSF2基因,参与能量代谢的基因表达发生显著变化,ATP浓度显著升高(P<0.01),暗示ACSF2能够调控颗粒细胞内的能量代谢途径。[结论] ACSF2启动子区c.-751 A>C变异能够改变该基因的表达水平,并通过改变颗粒细胞能量代谢来影响扬州鹅的产蛋量。该突变位点可作为扬州鹅产蛋性能选育的分子标记。
[Objectives] This study aimed to verify the correlation between the c.-751 A>C in ACSF2(encoded by acyl-CoA synthetase family member 2) promoter and laying performance of Yangzhou goose,and analyze the effect of the SNP on ACSF2 expression. [Methods] We used allele specific PCR(AS-PCR) to analyze the genotype of SNP c.-751 A>C in a 343 Yangzhou geese population,and performed the correlation analysis between genotype and laying performance of Yangzhou goose. Quantitative real-time PCR(qPCR) and luciferase reporter gene vector were used to detect the difference between AA and CC promoter activity. ACSF2 over-expression was performed to analyze its role in the energy metabolism of granulosa cells and laying performance. [Results] Genotyping and association analysis results showed that the egg numbers of geese with AA genotype were significantly higher than those CC ones. Quantitative real-time PCR analysis indicated that AA individuals showed lower ACSF2 expression level in ovary tissues. Moreover,the overexpression experiment indicated that ACSF2 was involved in the energy metabolism of granulosa cells. [Conclusions] We identified a functional mutation in the promoter region of ACSF2 affecting gene expression in Yangzhou goose,and indicated the role of ACSF2 in laying performance by regulating energy metabolism of granulosa cells. Our results provide insight into the improvement of goose laying performance by ACSF2 genetic variation selection.


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更新日期/Last Update: 1900-01-01