Ontology highlight
ABSTRACT:
SUBMITTER: Kavanagh KD
PROVIDER: S-EPMC7031666 | biostudies-literature | 2020 Feb
REPOSITORIES: biostudies-literature
Kavanagh Kathryn D KD Bailey C Scott CS Sears Karen E KE
Proceedings. Biological sciences 20200205 1920
Previous work comparing the developmental mechanisms involved in digit reduction in horses with other mammals reported that horses have only a 'single digit', with two flanking metapodials identified as remnants of digit II and IV. Here we show that early <i>Equus</i> embryos go through a stage with five digit condensations, and that the flanking splint metapodials result from fusions of the two anterior digits I and II and the two posterior digits IV and V, in a striking parallel between ontoge ...[more]