... in ventral neural tube specification and axon tract formation. Development 128 , 3497 -3509. von Hofsten, J., Elworthy, S., Gilchrist, M. J., Smith, J. C.,Wardle, F. C. and Ingham, P. W. ( 2008 ). Prdm1 and Sox6 mediated transcriptional repression specifies muscle fibre type in the zebrafish embryo...

..., no signalling pathway has been identified for Wnt6, and an equally likely and alternative explanation is that Wnt6 might induce and mediate its effects via Wnt5a expression. Our results do not resolve the problem of when and where the slow and fast fibre types are specified, nor whether Wnts are acting...