• 主题
高级搜索  >
历史搜索 清空历史
首页> 中文期刊> 《农业科学学报（英文版）》 >Myofiber development during embryonic to neonatal development in duck breeds differing in muscle growth rates

Myofiber development during embryonic to neonatal development in duck breeds differing in muscle growth rates

         
页面导航
  • 摘要
  • 著录项
  • 相关主题

摘要

Little is known about the muscle developmental patterns during embryonic to neonatal development in ducks.We investigated the developmental patterns in the lateral gastrocnemius muscles of Gaoyou and Jinding ducks differing in their muscle growth rates during the final stages of egg incubation and the first week after hatching.Expression of the MyoD gene was quantified by quantitative real-time PCR(qRT-PCR).The average cross-sectional area and diameter of the fibers increased from embryonic day 21(E21),peaking at E27,and then declining slightly 7 d after hatching.The density of the fibers decreased initially but increased after hatching in both breeds and sexes.The within-breed variation in muscle fiber-type composition was greater than the average variation between the breeds.Overall,the percentage of type Ⅰ fibers increased and that of type lIb fibers decreased consistently.However,the percentage of type lla fibers was almost constant as development proceeded in both duck breeds.The profiles of MyoD mRNA expression were similar in both breeds,and a significantly positive relationship was observed between the expression of MyoD and the percentage of type lIb fibers.This study firstly revealed the characteristics of duck muscle development and differences between the two breeds differing in growth rates.Moreover,type lIb fibers might convert to type Ⅰ fibers in the lateral gastrocnemius,while MyoD may potentially function in controlling the muscle fiber phenotype during the secondary myogenesis of muscle development.

著录项

  • 来源
    《农业科学学报（英文版）》 |2016年第2期|403-413|共11页
  • 作者

    LI Hui-fang; SHU Jing-ting; SHAN Yan-ju; CHEN Wen-feng; SONG Chi; XU Wen-juan;

  • 作者单位

    Key Laboratory for Poultry Genetics and Breeding of Jiangsu Province,Institute of Poultry Science,Chinese Academy of Agricultural Science,Yangzhou 225125,P.R.China;

    Key Laboratory for Poultry Genetics and Breeding of Jiangsu Province,Institute of Poultry Science,Chinese Academy of Agricultural Science,Yangzhou 225125,P.R.China;

    Key Laboratory for Poultry Genetics and Breeding of Jiangsu Province,Institute of Poultry Science,Chinese Academy of Agricultural Science,Yangzhou 225125,P.R.China;

    Jiangsu Tengdayuan Co.Ltd.,Jiangyan 225538,P.R.China;

    Key Laboratory for Poultry Genetics and Breeding of Jiangsu Province,Institute of Poultry Science,Chinese Academy of Agricultural Science,Yangzhou 225125,P.R.China;

    Key Laboratory for Poultry Genetics and Breeding of Jiangsu Province,Institute of Poultry Science,Chinese Academy of Agricultural Science,Yangzhou 225125,P.R.China;

  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号