• Corpus ID: 11138503

Was the tail bud the ancestral centre where the fin developmental program evolved in chordates

  title={Was the tail bud the ancestral centre where the fin developmental program evolved in chordates},
  author={Davorin Tadi{\'c} and Miguel Allende Connelly},
The structural origin of the vertebrates’ paired limbs is still an unsolved problem. Historically, two hypotheses have been raised to explain the origin of vertebrate limbs: the Archipterygium Hypothesis and the Fin Fold Hypothesis. Current knowledge provides support for both ideas. In the recent years, it has been also suggested that (1) all appendages correspond to body axis duplications and (2) they are originated by the ventralization of the developmental program present in the median fins… 

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