浙江农业学报 ›› 2021, Vol. 33 ›› Issue (12): 2264-2274.DOI: 10.3969/j.issn.1004-1524.2021.12.06

• 动物科学 • 上一篇    下一篇

连城白鸭不同组织中主要矿物元素沉积规律与关键基因表达水平研究

白皓1(), 李潇凡2, 仲黎2, 宋倩倩2, 江勇2, 张扬2, 王志秀2, 徐琪2, 常国斌1,2, 陈国宏1,2,*()   

  1. 1.扬州大学 农业科技发展研究院,教育部农业与农产品安全国际合作联合实验室,江苏 扬州 225009
    2.扬州大学 动物科学与技术学院,江苏 扬州 225009
  • 收稿日期:2020-08-25 出版日期:2021-12-25 发布日期:2022-01-10
  • 通讯作者: 陈国宏
  • 作者简介:* 陈国宏,E-mail: ghchen@yzu.edu.cn
    白皓(1987—),男,江苏扬州人,博士,助理研究员,主要从事家禽遗传育种研究。E-mail: bhowen1027@yzu.edu.cn
  • 基金资助:
    国家现代农业产业技术体系(CARS-42-3);江苏现代农业(水禽)产业技术体系(JATS[2019]310);江苏省农业科技自主创新资金(CX181004)

Study on depositions of mineral elements and expression levels of key genes in different tissues of Liancheng white ducks

BAI Hao1(), LI Xiaofan2, ZHONG Li2, SONG Qianqian2, JIANG Yong2, ZHANG Yang2, WANG Zhixiu2, XU Qi2, CHANG Guobin1,2, CHEN Guohong1,2,*()   

  1. 1. Joint International Research Laboratory of Agriculture and Agri-Product Safety, Ministry of Education, Institutes of Agricultural Science and Technology Development, Yangzhou University, Yangzhou 225009, China
    2. College of Animal Science and Technology, Yangzhou University, Yangzhou 225009, China
  • Received:2020-08-25 Online:2021-12-25 Published:2022-01-10
  • Contact: CHEN Guohong

摘要:

为了探讨连城白鸭不同组织中主要矿物元素的沉积规律及相关基因mRNA的表达水平,本研究利用原子荧光光度计,分别测定了0、21、35、49和63日龄连城白鸭胸肌、腿肌、肝脏、背皮和胫骨组织中的镁、钾、铁、锌和硒等矿物元素含量,采用qRT-PCR法分析不同日龄肝脏组织中各矿物元素相关基因表达水平及其与矿物元素沉积之间的关系。结果表明:镁与钾元素的沉积规律在所有组织中基本一致,且两者呈显著性正相关(P<0.05),在胸肌、腿肌和肝脏组织中,几乎所有矿物元素的含量在49~63日龄达到峰值(P<0.05)。镁元素相关基因TRPM6和TRPM7在21日龄时的表达水平最高(P<0.05);钾元素相关基因ATP1A1和ATP1B1在0日龄时的表达水平最高(P<0.05);铁元素相关基因FTH1的表达规律表现为先显著性下降再显著性升高的趋势,在35日龄时的表达水平最低(P<0.05);锌元素相关基因ATP6和ATP8分别在0和21日龄时的表达水平最高(P<0.05);硒元素相关基因GPX1和GPX4均在0日龄时的表达水平最高(P<0.05)。此外所有元素相关基因的表达水平与元素在肝脏组织中的沉积量呈负相关,但不显著(P>0.05)。综上,镁元素和钾元素可作为联合指标用于连城白鸭优质品系的精准选育;49~63日龄可作为连城白鸭最佳出栏日龄的参考日龄。

关键词: 连城白鸭, 矿物元素, 基因表达, 相关性

Abstract:

This study was conducted to investigate the depositions of several mineral elements and the mRNA expression levels of mineral-related genes in different tissues of Liancheng white duck. The contents of Mg, K, Fe, Zn and Se in breast muscle, thigh muscle, liver, skin and tibia at 0, 21, 35, 49 and 63 days of age, respectively, were measured by atomic fluorescence spectrophotometer. The mRNA expression levels of mineral-related genes were detected by qRT-PCR. The results revealed that the depositions of Mg and K were basically the same in all tissues, showing a significant positive correlation (P<0.05). In view of the breast muscle, thigh muscle and liver, the contents of almost all the mineral elements reached the peak value (P<0.05) at the age of 49-63 days. The expression levels of Mg-related genes TRPM6 and TRPM7 were the highest at the age of 21 days (P<0.05); the expression levels of K-related genes ATP1A1 and ATP1B1 were the highest at birth (P<0.05); the expression of Fe-related gene FTH1 showed a significant decrease and then a significant increase with the change of age, which had the lowest expression at the age of 35 days (P<0.05); the expression levels of Zn-related genes ATP6 and ATP8 were the highest at 0 and 21 days, respectively (P<0.05); the expression levels of Se-related genes GPX1 and GPX4 were the highest at birth (P<0.05). In addition, there were negative correlations between the expression level of genes and the deposition of mineral elements in liver tissue but not significantly (P>0.05). Taken together, Mg and K could be used as joint indicators for the precise breeding of high quality strain of Liancheng white duck; 49-63 days can be used as the reference of the best marketing age.

Key words: Liancheng white duck, mineral elements, gene expression, correlation

中图分类号: