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    Please use this identifier to cite or link to this item: http://tkuir.lib.tku.edu.tw:8080/dspace/handle/987654321/19576

    Title: Myogenic regulatory factors Myf5 and Myod function distinctly during craniofacial myogenesis of zebrafish
    Authors: 陳曜鴻;Chen, Yau-hung;Lin, C.Y.;Yung, R. F.;Lee, H. C.;Chen, W. T.;Tsai, H. J.
    Contributors: 淡江大學生命科學研究所
    Keywords: Myf5;Myod;Cranial myogenesis;Zebrafish
    Date: 2006-11-01
    Issue Date: 2009-11-05 16:37:38 (UTC+8)
    Publisher: Elsevier
    Abstract: The functions of Myf5 and Myod are well known in trunk myogenesis. However, the roles that Myf5 and Myod play during craniofacial myogenesis are far from well known. We observed that zebrafish myf5 was detected in the primordia of the obliques, lateral rectus, sternohyoideus, and pharyngeal mesoderm cores. In contrast, myod transcripts were expressed in all head muscle precursors at later stages. Knockdown of myf5 revealed that Myf5 was required for the development of the obliques, lateral rectus, sternohyoideus, and all pharyngeal muscles, whereas knockdown of myod proved that Myod was required for the development of superior rectus, medial rectus, inferior rectus, lateral rectus, and the ventral pharyngeal muscles. myod mRNA did not rescue the loss of the cranial muscle caused by injecting myf5-morpholino, or vice versa, suggesting that the functions of Myf5 and Myod were not redundant in head paraxial mesoderm, a finding different from their functions in trunk myogenesis. Myf5, but not Myod, was required for the forward migration of myf5-positive oblique precursors. All evidences reveal that Myf5 and Myod function independently during cranial myogenesis. On the basis of the expression patterns of myf5 and myod, we propose a model to present how Myf5 and Myod are involved in head myogenesis of zebrafish.
    Relation: Developmental Biology 299, pp.594-608
    DOI: 10.1016/j.ydbio.2006.08.042
    Appears in Collections:[Graduate Institute & Department of Chemistry] Journal Article

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