Costaridis P, Papageorgiou S, Kiortsis V, Zafeiratos C. Types of supernumerary outgrowths produced after inverting the dorsoventral limb axis of the anuranBufo bufo.
Dev Genes Evol 1991;
200:104-107. [PMID:
28305773 DOI:
10.1007/bf00637190]
[Citation(s) in RCA: 5] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/1990] [Accepted: 03/20/1991] [Indexed: 12/01/2022]
Abstract
Contralateral grafts were performed on the larval limb buds of the anuranBufo bufo. The dorsoventral axis of 80 buds at stages IV or V was inverted. Ten tadpoles were used as controls. Fifty-two supernumerary structures developed, all of them in dorsal or ventral locations on the host stump. The majority (32 out of the 44 outgrowths with more than 3 toes) were normal limbs of stump handedness. However, the following abnormal structures were also observed: 2 double-posterior, 3 mixed-symmetric, and 7 undetermined cases. These results are in agreement with the predictions of a hierarchical polar coordinate model for epimorphic regeneration.
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