cellular
• decrease in chondrocyte proliferation at E14.5, however chondrocyte differentiation proceeds normally
|
mortality/aging
• small number of mutant pups survive for up to 9 days postpartum
|
skeleton
• decrease in chondrocyte proliferation at E14.5, however chondrocyte differentiation proceeds normally
|
• shorter long bones with no growth of long bones after birth and defects more severe than in mutants carrying Tg(Col2a1-cre)15Amc or Tg(Col2a1-cre)3Amc
|
short humerus
(
J:73071
)
short ulna
(
J:73071
)
• short ulna
|
short fibula
(
J:73071
)
short tibia
(
J:73071
)
• almost no growth of tibia after birth
|
short scapula
(
J:73071
)
• length of scapula is shorter
|
• skeletal growth retardation
|
limbs/digits/tail
• failure of digit segmentation and ossification
|
short humerus
(
J:73071
)
short ulna
(
J:73071
)
• short ulna
|
short fibula
(
J:73071
)
short tibia
(
J:73071
)
• almost no growth of tibia after birth
|
short limbs
(
J:73071
)
• 40-50% reduction in the length of the stylopod and the zeugopod at birth
|