mortality/aging
• death occurs between E5.5 and E9.5
|
embryo
• inner cell mass fails to expand
• increased apoptosis
|
• fail to elongate extra-embryonic portion of the egg cylinder
|
• embryos small at E6.5
|
• disorganized epiblast
|
• at E7.5
|
absent amnion
(
J:75911
)
• absent amnion at E7.5
|
• absent at E7.5
|
• small proamniotic cavity at E6.5
|
• yolk sac cavity is very large
|
• failure to thin the distal tip of the visceral endoderm
|
• absence of anterior visceral endoderm markers
|
growth/size/body
• embryos small at E6.5
|
cellular
• increased apoptosis
• inner cell mass fails to expand
|