mortality/aging
• reduced frequency of homozygotes after E13.5
|
reproductive system
• adults fertile but produce very small litters
|
growth/size/body
• embryos surviving to E14.5 are morphologically normal but reduced in size
|
• spina bifida aperta in some embryos, exposure of dorsal neuroepithelium
|
• adults about 20% lower body mass
|
• adults about 20% smaller than controls
|
respiratory system
• extrapulmonary bronchi malformed and smaller than normal
|
• malformed
• frontal interruptions
|
• sometimes
|
small trachea
(
J:76067
)
• reduced diameter of lumen
|
skeleton
• malformed
• frontal interruptions
|
• sometimes
|
• an 8th right side vertebrosternal rib sometimes
• irregular sternocostal junctions on the 2nd or 3rd sternebrae
|
• asymmetric junctions of vertebrosternal ribs
|
rib fusion
(
J:76067
)
• some rib fusions
• particularly between the 1st and 2nd right ribs
• also between the 4th and 5th right rib
|
• abnormal vertebrae
|
• failure of vertebral arches to fuse dorsally
• in all 6 lumbar vertebrae and up to 6 thoracic vertebrae
|
• malformations occur
|
• combined with a curly tail in animals that fail to survive to adulthood
|
• malformations
|
nervous system
• spina bifida aperta in some embryos, exposure of dorsal neuroepithelium
|
• failure of vertebral arches to fuse dorsally
• in all 6 lumbar vertebrae and up to 6 thoracic vertebrae
|
• located more ventrally than normal
|
limbs/digits/tail
curly tail
(
J:76067
)
• sometimes seen in combination with kyphoscoliosis in animals that fail to survive to adulthood
|
immune system
N |
• normal thymus, spleen, and lymph nodes
• normal cellular composition of thymus, spleen, lymph nodes, and bone marrow
|
• reduced numbers of migrating dendritic cells in response to CCL19 or CCL21
|
cellular
• reduced numbers of migrating dendritic cells in response to CCL19 or CCL21
|
embryo
• embryos surviving to E14.5 are morphologically normal but reduced in size
|
• spina bifida aperta in some embryos, exposure of dorsal neuroepithelium
|
• failure of vertebral arches to fuse dorsally
• in all 6 lumbar vertebrae and up to 6 thoracic vertebrae
|