Ontology highlight
ABSTRACT:
SUBMITTER: Ma LH
PROVIDER: S-EPMC2963806 | biostudies-other | 2010
REPOSITORIES: biostudies-other
Nature communications 20100727
Motor innervation to the tetrapod forelimb and fish pectoral fin is assumed to share a conserved spinal cord origin, despite major structural and functional innovations of the appendage during the vertebrate water-to-land transition. In this paper, we present anatomical and embryological evidence showing that pectoral motoneurons also originate in the hindbrain among ray-finned fish. New and previous data for lobe-finned fish, a group that includes tetrapods, and more basal cartilaginous fish sh ...[more]