Robert D. Riddle
= Robert D. Riddle
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Coauthor of research on <Wnt7a> and <Lmx1b> in <vertebrate limb> development. The study connected a local signal with establishment of dorsal–ventral identity in a growing appendage.<Induction of the LIM homeobox gene Lmx1 by WNT7a establishes dorsoventral pattern in the vertebrate limb by Robert D. Riddle and others>[Author list and described study]{ref}