Developmental characteristics of pectoralis muscle in Pekin duck embryos
Developmental characteristics of pectoralis muscle in Pekin duck embryos
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DOI：
10.4238/2013.december.13.6
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发表时间：
2013-01-01
影响因子：
0.4
通讯作者：
Hou, S. S.
中科院分区：
文献类型：
--
作者：
Gu, L. H.;Xu, T. S.;Hou, S. S.
为了明确北京鸭胚胎胸肌的整个发育过程和转变点，探讨胸肌发育与其调控基因的关系，对北京鸭胚胎骨骼肌进行解剖学和形态学分析，并探讨其调控基因的表达模式。解剖学分析表明，体重随着年龄的增长而增加。而在胚胎孵化 20 天（E20）后，胸肌重量几乎停止增加。北京鸭胸肌胚胎期的发育形态特征表明，E20是北京鸭胸肌的过渡点（从增殖到融合）。 MRF4的表达模式。 MyoG和MSTN表明E19或E20是胸肌发育最快点，也是北京鸭胚胎期胸肌发育的关键转变点。一起。这些结果表明，E20是北京鸭胸肌的关键转变点（从增殖到融合），并且E20之后没有肌纤维肥大。本研究结果为进一步了解北京鸭胸肌在胚胎阶段的发育过程和转变点提供了进一步的认识。
To confirm the entire developmental process and transition point of embryonic Pekin duck pectoral muscle, and to investigate the association between pectoral muscle development and their regulating genes, anatomical and morphological analyses of embryonic Pekin duck skeletal muscles were performed, and the expression patterns of its regulating genes were investigated. The anatomical analysis revealed that body weight increased with age. while increases in pectoral muscle weight nearly ceased after the embryo was 20 days of hatching (E20). The developmental morphological characteristics of Pekin duck pectoral muscle at the embryonic stage showed that E20 was the transition point (from proliferation to fusion) of Pekin duck pectoral muscle. The expression patterns of MRF4. MyoG, and MSTN indicated that E19 or E20 was the fastest point of pectoral muscle development and the crucial transition for Pekin duck pectoral muscle development during the embryonic stage. Together. these findings imply that E20 is the crucial transition point (from proliferation to fusion) of Pekin duck pectoral muscle and that there is no muscle fiber hypertrophy after E20. Results of this study provide further understanding of the developmental process and transition point of Pekin duck pectoral muscle during the embryo stage.