ACTA VETERINARIA ET ZOOTECHNICA SINICA ›› 2014, Vol. 45 ›› Issue (3): 385-390.doi: 10.11843/j.issn.0366-6964.2014.03.007

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Expression of CAPN3 Gene in Skeletal Muscles and Its Association with Myofiber Traits during Embryonic and Early Post-hatching Development in Ducks

ZHU Wen-qi1,2,XU Wen-juan2,SHU Jing-ting2,CHEN Wen-feng3,SHAN Yan-ju2,LIU Hong-xiang2,HU Yan2,LI Hui-fang2*,WANG Jin-yu1*   

  1. (1.College of Animal Science and Technology,Yangzhou University,Yangzhou 225009,China;2. Jiangsu Institute of Poultry Science,Yangzhou 225125,China; 3. Jiangsu Tengdayuan Co.Ltd, Jiangyan 225538,China)
  • Received:2013-08-27 Online:2014-03-23 Published:2014-03-23

Abstract:

In the present study,expression of CAPN3 gene was quantified by RT-PCR in the breast muscle and leg muscle tissues on days 13(E13 d),17(E17 d),21(E21 d),25(E25 d),27(E27 d) of embryonic development,as well as at 7 days post-hatching (7 d PH) in Gaoyou and Jinding ducks with different growth rates.Meanwhile,the association between expression level of CAPN3 gene and myofiber traits was also analyzed. The results showed that the CAPN3 mRNA expression profile had a similar trend in both breeds and showed an extremely significant specific expression at different development stages,breeds and gender had no effect on its expression.In breast muscle,the expression level of CAPN3 mRNA was relatively low before E25 d and the lowest point appeared on E21 d,then increased significantly before hatching (E27 d) and 7 d PH.In leg muscle,the expression profile of CAPN3 showed a “wave” trend,the expression peaking appeared on E21 d.Meanwhile different linear correlations were found between CAPN3 gene mRNA expression and myofiber types,diameter,cross-sectional area and density in duck.In Jinding ducks,CAPN3 gene mRNA expression was significantly correlated with myofiber diameter,cross-sectional area and density.These results suggest that CAPN3 may have potential functions in controlling muscle fiber phenotype and development during embryonic and early post-hatching development in ducks.

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