为探究本课题组获得的2头体细胞克隆猪隐睾症形成的可能原因,本研究利用相对荧光定量PCR技术检测了WT1和FGF9基因在睾丸组织中mRNA表达量变化,同时利用亚硫酸氢盐测序法分析了其启动子区CpG岛甲基化状态。结果表明:WT1和FGF9基因在2头...为探究本课题组获得的2头体细胞克隆猪隐睾症形成的可能原因,本研究利用相对荧光定量PCR技术检测了WT1和FGF9基因在睾丸组织中mRNA表达量变化,同时利用亚硫酸氢盐测序法分析了其启动子区CpG岛甲基化状态。结果表明:WT1和FGF9基因在2头克隆猪睾丸中表达量均高于对照组,其中克隆猪C1中2个基因的表达量与对照组相比差异明显(3.49、9.83 vs 1.00)。亚硫酸氢盐测序结果显示,WT1基因启动子区在克隆猪C1和C2中的甲基化程度没有明显变化,而FGF9基因启动子区2个CpG岛在克隆猪C1中甲基化程度高于对照猪N(94.54%vs 18.18%,71.11%vs 26.67%),而在克隆猪C2中不明显。综上表明:WT1基因的异常表达可能是引起克隆猪发生隐睾的原因之一,但其甲基化水平不是影响该基因异常表达的因素;克隆猪C1睾丸组织FGF9基因启动子区发生超甲基化,这可能导致其mRNA表达异常,从而成为诱导克隆猪隐睾发生的可能原因。展开更多
[Objective] Using molecular biotechnology to clone the sus scrofa GPX2 gene. [Method] Using total RNA of sus scrofa duodenum as template, degenerated primer pairs were designed according to the homology alignment anal...[Objective] Using molecular biotechnology to clone the sus scrofa GPX2 gene. [Method] Using total RNA of sus scrofa duodenum as template, degenerated primer pairs were designed according to the homology alignment analysis of GPX2 gene of human, rat, mouse, dog and cattle. A sus scrofa GPX2 gene sequence of 330 bp was obtained by RT-PCR application method. Primes were designed respectively according to the known sequence, sus scrofa GPX2 gene was isolated and cloned by 3-RACE and 5-RACE method and analyzed the gene sequence. [Result] A mRNA sequence of 924 bp was successfully cloned and isolated in this research. This sequence contained complete 3＇end and had higher sequence homology with human,mouse,cattle and dog GPX2 gene, and there was codon called TGA which encoding Sec on the position of No. 114-116 gene. [Conclusion] Sequence alignment analysis showed that the cloned gene was sus scrofa GPX2 gene （ NCBI GenBank database, the sequence number was D098982）.展开更多
为查明本课题组所获得的体细胞克隆猪隐睾发生的可能原因,本研究采用相对荧光定量PCR技术和亚硫酸氢盐测序法分析SOX9和INSL3基因在克隆猪隐睾中的表达量及其启动子区CpG位点甲基化状态。结果表明:除了SOX9基因在克隆猪C2中的表达量显...为查明本课题组所获得的体细胞克隆猪隐睾发生的可能原因,本研究采用相对荧光定量PCR技术和亚硫酸氢盐测序法分析SOX9和INSL3基因在克隆猪隐睾中的表达量及其启动子区CpG位点甲基化状态。结果表明:除了SOX9基因在克隆猪C2中的表达量显著高于对照组N(1.82 vs 1,P<0.05)外,克隆猪SOX9和INSL3基因的表达量都显著低于对照组N(P<0.05);亚硫酸氢盐测序结果显示SOX9基因启动子区在克隆猪C1和C2中的甲基化程度没有显著变化,而INSL3基因启动子区在克隆猪C1和C2中的甲基化程度显著高于对照猪N(86.25%、78.75%vs 57.50%,P<0.05)。结果说明,INSL3基因在克隆猪隐睾中DNA甲基化重编程异常,而且这种异常影响其正常表达,由此推测这可能是导致克隆猪发生隐睾的重要因素之一。展开更多
文摘为探究本课题组获得的2头体细胞克隆猪隐睾症形成的可能原因,本研究利用相对荧光定量PCR技术检测了WT1和FGF9基因在睾丸组织中mRNA表达量变化,同时利用亚硫酸氢盐测序法分析了其启动子区CpG岛甲基化状态。结果表明:WT1和FGF9基因在2头克隆猪睾丸中表达量均高于对照组,其中克隆猪C1中2个基因的表达量与对照组相比差异明显(3.49、9.83 vs 1.00)。亚硫酸氢盐测序结果显示,WT1基因启动子区在克隆猪C1和C2中的甲基化程度没有明显变化,而FGF9基因启动子区2个CpG岛在克隆猪C1中甲基化程度高于对照猪N(94.54%vs 18.18%,71.11%vs 26.67%),而在克隆猪C2中不明显。综上表明:WT1基因的异常表达可能是引起克隆猪发生隐睾的原因之一,但其甲基化水平不是影响该基因异常表达的因素;克隆猪C1睾丸组织FGF9基因启动子区发生超甲基化,这可能导致其mRNA表达异常,从而成为诱导克隆猪隐睾发生的可能原因。
文摘[Objective] Using molecular biotechnology to clone the sus scrofa GPX2 gene. [Method] Using total RNA of sus scrofa duodenum as template, degenerated primer pairs were designed according to the homology alignment analysis of GPX2 gene of human, rat, mouse, dog and cattle. A sus scrofa GPX2 gene sequence of 330 bp was obtained by RT-PCR application method. Primes were designed respectively according to the known sequence, sus scrofa GPX2 gene was isolated and cloned by 3-RACE and 5-RACE method and analyzed the gene sequence. [Result] A mRNA sequence of 924 bp was successfully cloned and isolated in this research. This sequence contained complete 3＇end and had higher sequence homology with human,mouse,cattle and dog GPX2 gene, and there was codon called TGA which encoding Sec on the position of No. 114-116 gene. [Conclusion] Sequence alignment analysis showed that the cloned gene was sus scrofa GPX2 gene （ NCBI GenBank database, the sequence number was D098982）.
文摘为查明本课题组所获得的体细胞克隆猪隐睾发生的可能原因,本研究采用相对荧光定量PCR技术和亚硫酸氢盐测序法分析SOX9和INSL3基因在克隆猪隐睾中的表达量及其启动子区CpG位点甲基化状态。结果表明:除了SOX9基因在克隆猪C2中的表达量显著高于对照组N(1.82 vs 1,P<0.05)外,克隆猪SOX9和INSL3基因的表达量都显著低于对照组N(P<0.05);亚硫酸氢盐测序结果显示SOX9基因启动子区在克隆猪C1和C2中的甲基化程度没有显著变化,而INSL3基因启动子区在克隆猪C1和C2中的甲基化程度显著高于对照猪N(86.25%、78.75%vs 57.50%,P<0.05)。结果说明,INSL3基因在克隆猪隐睾中DNA甲基化重编程异常,而且这种异常影响其正常表达,由此推测这可能是导致克隆猪发生隐睾的重要因素之一。
