An outgrowth on the lateral trunk of the embryo that develops into a limb or paired fin. The limb/fin bud is divided into ectoderm and mesenchyme[cjm, modified from MP]. [ https://www.worldcat.org/search?q=bn%3A9780878932504 https://orcid.org/0000-0002-6601-2165 MP:0005650 ]
Synonyms: limb - fin bud paired appendage bud paired limb/fin bud
Term information
- VHOG:0001258
homology_grouping
Genes: In limb buds of chick and mouse, Shh expression is activated as soon as there is a morphological bud, whereas in S. canicula fin buds, consistent with reported data in other cartilaginous fishes, Shh is transcribed late in fin development[PMID:17187056]