title: Limb development: Farewell to arms.
abstract: Forelimbs and hindlimbs are, clearly, quite different, and it has long been appreciated that their differences are assigned early in development; the genetic basis of these differences has been more mysterious, however. Recent work has now shown that the homeobox gene Pitx1 imparts identity to the developing hindlimb bud.
authors.affiliation: Molecular Neurobiology Group, 4th floor, Hodgkin Building, Kings College London, Guys Campus, London, SE1 9RT, UK.
authors.forename: A
authors.initials: A
authors.lastname: Graham
authors.forename: I
authors.initials: I
authors.lastname: McGonnell
mesh_terms: D000818:Animals; D001132:Arm / Q000196:embryology*; D005314:Embryonic and Fetal Development; D006801:Humans