鹅肥肝形成过程中调控SCD1基因的miRNA研究
[Abstract]:MicroRNA (miRNA) is a class of endogenous non-coding single-stranded RNA molecules of about 22m. It widely exists in many organisms, such as viruses, animals and plants. By binding to the target gene 3'UTR region, target mRNA translation is inhibited or degraded. SCD1 is a kind of catalytic enzyme located in the endoplasmic reticulum and a rate-limiting enzyme for the synthesis of monounsaturated fatty acids in hepatocytes. They are capable of converting palmitic acid and stearyl coenzyme A into palmitic acid and oleic acid, respectively. These unsaturated fatty acids synthesize a variety of lipids, including triglycerides, phospholipids, cholesterol, SCD1 plays an important role in the lipid metabolism of the liver, that is, in fat synthesis and fatty acid oxidation. The aim of this study was to screen the expression of SCD1 gene and its regulation of 1niRNA in the liver of Landau Goose. The main results were as follows: (1) the liver weight and liver body ratio of Landes geese increased gradually with the prolongation of feeding time, and the average weight of liver was 124.5 g at 70 days of age (feeding 0 days). The average weight of liver increased to 826.6g at 89 days of age (19 days of feeding). At the age of 70 days, the average body weight ratio was 3.21% and the average body weight ratio was 10.30% at the age of 89 days. In this experiment, fluorescence quantitative PCR was used to determine the change trend of SCD1 gene expression in all stages of feeding and control groups. The results showed that the expression of SCD1 gene in the feeding group was higher than that in the control group, and at the age of 19 days (89 days), the expression level of the SCD1 gene in the feeding group was higher than that in the control group. The expression level in the feeding group was significantly higher than that in the control group. The contents of palmitic oil acid, triglyceride and cholesterol in each stage of feeding group were measured, and the correlation between SCD1 gene and indexes in each stage of feeding group was analyzed. The expression of SCD1 gene was positively correlated with oleic acid, cholesterol and VLDL (P0.01). There was a significant positive correlation between triglyceride content and triglyceride content (P0.05). (2). By software prediction and sequencing results of small RNA in the early stage, the miRNA of goose SCD1 gene was selected to be miR-30b, miR-30a-5p and miR-10b,. SYBR Green dye fluorescence quantitative PCR was used to determine the changes of miRNA expression in each stage of feeding group and control group. The expression of miRNA in control group was higher than that in feeding group. Contrary to the change of SCD1 gene expression. (3) goose miR-30b and] miR-30a-5p precursor sequences were amplified from Langde geese, and the homology with miR-30b and miR-30a-5p precursors was 100%. Using the double luciferase report system to verify the three miRNA, screened in CHO cell line, the results show that miR30b and miR-30a-5p are the miRNA. to regulate the SCD1 gene of goose. It was suggested that miR-30b and miR-30a-5p might influence the lipid metabolism of goose liver by regulating the SCD1 gene.
【学位授予单位】:扬州大学
【学位级别】:硕士
【学位授予年份】:2015
【分类号】:S835
【相似文献】
相关期刊论文 前10条
1 崔大同 ,赵素娥;新型填饲机的研制与填饲效果[J];中国畜牧杂志;1983年06期
2 陈泽;;用人工填饲法育肥鹅[J];农业知识;2002年01期
3 张仲华;许静初;陈耀王;;9DJ—82A型鸭鹅填饲机[J];农业科技通讯;1983年05期
4 周磊;曾秋凤;张克英;吕刚;;填饲能量相同时不同油脂对肉鸭肥肝质量的影响[J];动物营养学报;2010年06期
5 许立;;肥肝鸭或鹅的预填饲[J];当代畜牧;1984年03期
6 邓惠宗;雏鹅育肥新方法[J];四川畜禽;1996年07期
7 卓金亮;秋冬季节鸭填饲育肥技术[J];中国禽业导刊;2002年22期
8 王乃富;陈开洋;陈耀王;;中国肥肝鹅填饲机械和填饲技术进展[J];中国禽业导刊;2007年09期
9 王继文;韩春春;李亮;许恒勇;叶建强;蒋立;卓伟华;;填饲对鹅肝脂质沉积及相关基因表达的影响[J];中国家禽;2008年20期
10 蒋立;;添加动植物性油脂填饲对鸭肥肝性能的差异影响[J];家禽科学;2008年01期
相关会议论文 前3条
1 陈开洋;王乃富;陈耀王;;鹅鸭强制填饲机械和填饲技术的进展[A];首届中国水禽发展大会会刊——中国水禽业进展[C];2005年
2 王来娣;邵丹;张宜辉;张蕊;洪胜辉;张军;龚道清;;朗德鹅填饲期肝重及肝脏营养成分的变化规律研究[A];安全优质的家禽生产——第十五次全国家禽学术讨论会论文集[C];2011年
3 高正根;张志国;李国臣;胡胜强;王岭;闫磊;郝金平;;北京鸭填鸭阶段管理要点[A];首届中国水禽发展大会会刊——中国水禽业进展[C];2005年
相关重要报纸文章 前10条
1 中国农科院畜牧研究所 刘五岳;朗德鹅填饲期管理技术[N];河北科技报;2004年
2 满红;科学填鸭需注意[N];中国畜牧兽医报;2014年
3 郑延平;快速育肥鸭的方法—填饲法[N];云南科技报;2006年
4 郑延平;迅速育肥鸭的方法—填饲法[N];中国畜牧兽医报;2006年
5 郑延平;迅速育肥鸭的方法——填饲法[N];陕西科技报;2006年
6 湖北省阳新县洋港镇农办 赫裴;鹅的育肥方法[N];陕西科技报;2000年
7 李铁为;鹅的几种肥育方法[N];广东科技报;2003年
8 张安;秋季肉鸭填肥办法张安[N];河北农民报;2009年
9 陈贵善;野鸭的饲养管理技术[N];云南科技报;2006年
10 钟鲁;秋鸭填喂快速增肥[N];广东科技报;2003年
相关博士学位论文 前3条
1 刘振春;填饲对鹅肥肝脂肪酸合成酶的表达及脂肪沉积规律的研究[D];吉林农业大学;2011年
2 蒋立;填饲诱导鹅肥肝形成差异及调控肝极低密度脂蛋白—甘油三酯组装与分泌相关基因的表达研究[D];四川农业大学;2005年
3 韩春春;不同因素诱导鹅肝细胞脂肪变性的机理研究[D];四川农业大学;2010年
相关硕士学位论文 前10条
1 周磊;油脂种类及其填饲时间对樱桃谷肉鸭肥肝生产和品质的影响研究[D];四川农业大学;2010年
2 许静;填饲对鹅肝胆固醇合成相关基因表达的影响[D];南京农业大学;2014年
3 朱振鹏;黑羽番鸭的产肝性能及填饲对脂代谢基因转录表达影响的研究[D];扬州大学;2014年
4 闻治国;填饲对北京鸭脂肪沉积和营养物质表观消化率的影响[D];中国农业科学院;2012年
5 许恒勇;脂蛋白脂酶(LPL)在填饲鹅脂肪组织中的表达研究[D];四川农业大学;2005年
6 原霞;益生素和酶制剂对肥肝鹅的填饲效应[D];河南农业大学;2009年
7 付晓英;鹅SCD1基因全长cDNA的克隆、组织表达及填饲对其表达的影响[D];四川农业大学;2010年
8 邝智祥;不同脂肪酸对朗德鹅填饲的效果及脂肪酸合成酶RFLP多态性与生产性能的相关研究[D];四川农业大学;2008年
9 黄晓宇;鹅LXRα基因的序列变异、表达特性及其在脂质代谢中的作用研究[D];四川农业大学;2007年
10 孙晓先;鹅肥肝形成过程中调控SCD1基因的miRNA研究[D];扬州大学;2015年
,本文编号:2391791
本文链接:https://www.wllwen.com/yixuelunwen/dongwuyixue/2391791.html