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Phenotypes Associated with This Genotype
Genotype
MGI:3700984
Allelic
Composition
Tbx6rv/Tbx6rv
Genetic
Background
involves: C57BL/J * C57BL/6J
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Tbx6rv mutation (1 available); any Tbx6 mutation (2 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
skeleton
• fusions of ribs that are usually located in the lower half of the thoracic basket and are often asymmetric (J:8119)
• fusions of ribs that are usually located in the lower half of the thoracic basket and are often asymmetric (J:8119)
• abnormal mesenchymal condensation in the anlage of the vertebral column (J:8119)
• abnormal mesenchymal condensation in the anlage of the vertebral column (J:8119)
• thoracic vertebrae are irregular (J:8119)
• thoracic vertebrae are irregular (J:8119)
• condensations of primitive intervertebral discs often appear distorted at E12 (J:8119)
• condensations of primitive intervertebral discs often appear distorted at E12 (J:8119)
• left arch of atlas is sometimes bifurcated or enlarged (J:8119)
• left arch of atlas is sometimes bifurcated or enlarged (J:8119)
• fusions of the anterior arch of the Atlas with the Axis is common (J:8119)
• fusions of the anterior arch of the Atlas with the Axis is common (J:8119)
• lumbar vertebrae are irregular (J:8119)
• lumbar vertebrae are irregular (J:8119)
• mutants exhibit irregularities and fusions of the neural arches and transverse processes, probably resulting from irregularities in somite formation (J:8119)
• mutants exhibit irregularities and fusions of the neural arches and transverse processes, probably resulting from irregularities in somite formation (J:8119)
• the vertebral bodies, especially in the lower thoracic and the lumbar region, are irregularly arranged (J:8119)
• the vertebral bodies, especially in the lower thoracic and the lumbar region, are irregularly arranged (J:8119)
• thoracic/lumbar articular processes are often fused (J:8119)
• thoracic/lumbar articular processes are often fused (J:8119)
• mutants exhibit irregularities and fusions of the transverse processes (J:8119)
• the transverse processes of cervical vertebrae are sometimes irregularly spaced (J:8119)
• mutants exhibit irregularities and fusions of the transverse processes (J:8119)
• the transverse processes of cervical vertebrae are sometimes irregularly spaced (J:8119)
• some thoracic/lumbar vertebral bodies are enlarged (J:8119)
• some thoracic/lumbar vertebral bodies are enlarged (J:8119)
• fusion of cervical vertebral bodies (J:8119)
• fusion of cervical vertebral bodies (J:8119)
• some thoracic/lumbar vertebral bodies are enlarged (J:8119)
• some thoracic/lumbar vertebral bodies are enlarged (J:8119)

embryogenesis
• exhibit duplication of the caudal neural tube without duplications of the notochord (J:8119)
• exhibit duplication of the caudal neural tube without duplications of the notochord (J:8119)
• segments of notochord are irregularly spaced in the thoracic/lumbar region at E13 (J:8119)
• the notochord shows a massive pycnosis at the tail tip only (J:8119)
• segments of notochord are irregularly spaced in the thoracic/lumbar region at E13 (J:8119)
• the notochord shows a massive pycnosis at the tail tip only (J:8119)
• somites at E13 appear to be unevenly distributed at the tail tip (J:8119)
• somites at E13 appear to be unevenly distributed at the tail tip (J:8119)
• near the tail tip, somites are often fused (J:8119)
• near the tail tip, somites are often fused (J:8119)

growth/size/body

limbs/digits/tail
• the tail tip is enlarged and buds/sprouts off with several branches as early as E11; buds arising at the tail tip are filled with mesenchyme (J:8119)
• the tail tip is enlarged and buds/sprouts off with several branches as early as E11; buds arising at the tail tip are filled with mesenchyme (J:8119)
• tail is shortened at E12 and may be irregularly bifurcated (J:8119)
• tail is shortened at E12 and may be irregularly bifurcated (J:8119)
• varying severity of kinked tail (J:8119)
• varying severity of kinked tail (J:8119)

nervous system
• exhibit duplication of the caudal neural tube without duplications of the notochord (J:8119)
• exhibit duplication of the caudal neural tube without duplications of the notochord (J:8119)

digestive/alimentary system
• in rare cases, the hindgut is doubled, however the accessory gut does not penetrate the accessory mesenchyme of the sprouting tail (J:8119)
• in rare cases, the hindgut is doubled, however the accessory gut does not penetrate the accessory mesenchyme of the sprouting tail (J:8119)

renal/urinary system
• occasional unilateral absence of kidneys (J:8119)
• occasional unilateral absence of kidneys (J:8119)

reproductive system
• females are poor breeders (J:8119)
• females are poor breeders (J:8119)

Mouse Models of Human Disease
OMIM ID Ref(s)
Spondylocostal Dysostosis 1, Autosomal Recessive; SCDO1 277300 J:8119


Contributing Projects:
Mouse Genome Database (MGD), Gene Expression Database (GXD), Mouse Tumor Biology (MTB), Gene Ontology (GO), MouseCyc
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last database update
02/02/2016
MGI 6.02
The Jackson Laboratory