embryo
• mesenchyme from mutant mice shows a reduced ability to form aggregates and cartilaginous nodules in vitro
|
limbs/digits/tail
brachypodia
(
J:17582
)
• feet are much shorter than controls
|
• the reduction in length of the feet is largely the result of altered patterning of segments in the digits
|
• mice have unusual sesamoid morphology
|
• slight disorganization of the carpals and tarsals
|
• P1 and P2 are replaced by a single rudimentary element (P1/P2)
|
• the proximal and middle phalanges are reduced
|
• in place of the proximal and medial phalanges is a single bone resulting from a fusion of the proximal and medial phalangeal condensations
(J:17582)
• the proximal and middle phalanges are fused
(J:59282)
|
• slight disorganization of the carpals and tarsals
|
• defects in the length of the metacarpals
(J:17582)
|
• defects in the length of the metatarsals
(J:17582)
|
• in mutants, length of long bones of forelimbs and hindlimbs is severely reduced
|
• mesenchyme from mutant mice shows a reduced ability to form aggregates and cartilaginous nodules in vitro
|
• digit condensations in mutant mice are thin, malformed, and slow to initiate chondrogenesis
|
skeleton
• mice have unusual sesamoid morphology
|
• slight disorganization of the carpals and tarsals
|
• P1 and P2 are replaced by a single rudimentary element (P1/P2)
|
• the proximal and middle phalanges are reduced
|
• in place of the proximal and medial phalanges is a single bone resulting from a fusion of the proximal and medial phalangeal condensations
(J:17582)
• the proximal and middle phalanges are fused
(J:59282)
|
• slight disorganization of the carpals and tarsals
|
• long bones of the limb are slightly shorter
|
• defects in the length of the metacarpals
(J:17582)
|
• defects in the length of the metatarsals
(J:17582)
|
• mutants exhibit frequent joint dislocations
|