1. The ability of myogenic cells to migrate within chick wing bud was investigated using quail cell markers. Fragments of quail wing buds containing myogenic cells of somitic origin were excised from stage 20-26 H. H. embryos and olthotropically implanted into chick wing buds in ovo. The chimaeric limbs were fixed for analysis at daily intervals. It was not until after the second day of implantation that quail cells started migrating out of the graft sites. Quail chondrocytes were found at the graft sites but they were non invasive. After the third day of implantation, quail cells were detected in most of the muscle regions in the zeugopod, but it was not until after the fourth day that quail cells were discernible in the autopod. Myogenic cell migration was exclusively in a proximodistal direction, with very little or no concurrent movement in the opposite direction.
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A Study on the Capacity of Normal and talpid3 Mutant Myogenic Cells to Migrate in Fowl Embryonic Wing Buds
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