Abstract
Here, we describe methods for applying Sonic hedgehog (Shh) to developing chick limbs. The Sonic hedgehog gene is expressed in the polarizing region, a signaling region at the posterior margin of the limb bud and application of Shh-expressing cells or Shh protein to early limb buds mimics polarizing region signaling. The polarizing region (or zone of polarizing activity) is involved in one of the best known cell-cell interactions in vertebrate embryos and is pivotal in controlling digit number and pattern. At later stages of limb development, the application of Shh protein to the regions between digit primordia can induce changes in digit morphogenesis.
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Tiecke, E., Tickle, C. (2007). Application of Sonic Hedgehog to the Developing Chick Limb. In: Horabin, J.I. (eds) Hedgehog Signaling Protocols. Methods Inmolecular Biology™, vol 397. Humana Press. https://doi.org/10.1007/978-1-59745-516-9_2
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DOI: https://doi.org/10.1007/978-1-59745-516-9_2
Publisher Name: Humana Press
Print ISBN: 978-1-58829-692-4
Online ISBN: 978-1-59745-516-9
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