Fisheries Science

, Volume 77, Issue 5, pp 847–853 | Cite as

Species-specific expression variation of fish MYH14, an ancient vertebrate myosin heavy chain gene orthologue

  • Shigeharu Kinoshita
  • Bhuiyan Sharmin Siddique
  • Saltuk Bugrahan Ceyhun
  • Md. Asaduzzaman
  • Shuichi Asakawa
  • Shugo WatabeEmail author
Original Article Chemistry and Biochemistry


MYH14 (MYH7b) is the most recently identified sarcomeric myosin heavy chain gene (MYH) from the human genome. Recent observations have revealed that MYH M5 , a torafugu orthologue of MYH14, is one of the major components of the MYH repertoire expressed in torafugu embryos and adults, suggesting its pivotal role in fish muscle formation. We have examined the expression pattern of MYH14 in zebrafish, a model organism for the study of vertebrate development. In situ hybridization studies revealed that zebrafish MYH14 was expressed in the most myotomal region containing fast muscle fibers in the embryonic stage and in superficial slow muscle fibers in the adult stage. Weak signals of MYH14 transcripts were also detected in intermediate muscle fibers located between superficial slow and inner fast muscle fibers in the adult. Reverse transcription-PCR studies showed that MYH14 was not only expressed in skeletal muscles but also in cardiac muscles. These expression patterns are in a marked contrast to that of torafugu MYH M5 , which is solely expressed in slow and cardiac muscle fibers in both the embryonic and adult stages. Our results imply species-specific functions of MYH14 in fish muscle formation.


Myosin heavy chain MYH14 (MYH7b) Muscle formation Zebrafish Torafugu Medaka In situ hybridization 



This study was partly supported by a Grant-in-Aid for Scientific Research from the Japan Society for Promotion of Science.


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Copyright information

© The Japanese Society of Fisheries Science 2011

Authors and Affiliations

  • Shigeharu Kinoshita
    • 1
  • Bhuiyan Sharmin Siddique
    • 1
  • Saltuk Bugrahan Ceyhun
    • 2
  • Md. Asaduzzaman
    • 1
  • Shuichi Asakawa
    • 1
  • Shugo Watabe
    • 1
    Email author
  1. 1.Department of Aquatic Bioscience, Graduate School of Agricultural and Life SciencesThe University of TokyoBunkyo, TokyoJapan
  2. 2.Hınıs Vocational Training School and Biotechnology Application and Research CenterAtatürk UniversityErzurumTurkey

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