Article
Tbx Genes Specify Posterior Digit Identity through Shh and BMP Signaling.
Developmental cell - 1 Jan 2004
Suzuki Takayuki, Takeuchi Jun, Koshiba-Takeuchi Kazuko, Ogura Toshihiko
Abstract excerpt
Despite extensive studies on the anterior-posterior (AP) axis formation of limb buds, mechanisms that specify digit identities along the AP axis remain obscure. Using the four-digit chick leg as a model, we report here that Tbx2 and Tbx3 specify the digit identities of digits IV and III, respectively. Misexpression of Tbx2 and Tbx3 induced posterior homeotic transformation of digit III to digit IV and digit II to...
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