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Phenotypes Associated with This Genotype
Genotype
MGI:4418054
Allelic
Composition
Tbx2tm1.1(cre)Vmc/Tbx2tm1.1(cre)Vmc
Genetic
Background
involves: 129P2/OlaHsd * NMRI
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Tbx2tm1.1(cre)Vmc mutation (0 available); any Tbx2 mutation (29 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
craniofacial
• mesenchymal cell proliferation is significantly increased at E12.5 in the anterior region, but not in the posterior region at this age, or in either region at E14.0
• at E13.5, palatal shelves appear smaller and have moved less down the tongue compared to wild type
• at E14.0, a significant reduction in size of the anterior region of the palatal shelves is detected with no significant changes in cell densities in the anterior or posterior aspects
• at E18.5 and 15.5, 18 of 21 embryos analyzed show a complete cleft of the secondary palate
• morphogenesis of the palatal shelves is severely retarded and comes to a premature hold with elevated palatal shelves only apparent at E14.5 in contrast to wild-type where elevated shelves are seen at E14.25 and fusion occurs between E14.5 and 15.5

limbs/digits/tail
• bilateral hindlimb-specific duplication of digit IV is observed

digestive/alimentary system
• mesenchymal cell proliferation is significantly increased at E12.5 in the anterior region, but not in the posterior region at this age, or in either region at E14.0
• at E13.5, palatal shelves appear smaller and have moved less down the tongue compared to wild type
• at E14.0, a significant reduction in size of the anterior region of the palatal shelves is detected with no significant changes in cell densities in the anterior or posterior aspects
• at E18.5 and 15.5, 18 of 21 embryos analyzed show a complete cleft of the secondary palate
• morphogenesis of the palatal shelves is severely retarded and comes to a premature hold with elevated palatal shelves only apparent at E14.5 in contrast to wild-type where elevated shelves are seen at E14.25 and fusion occurs between E14.5 and 15.5

growth/size/body
• mesenchymal cell proliferation is significantly increased at E12.5 in the anterior region, but not in the posterior region at this age, or in either region at E14.0
• at E13.5, palatal shelves appear smaller and have moved less down the tongue compared to wild type
• at E14.0, a significant reduction in size of the anterior region of the palatal shelves is detected with no significant changes in cell densities in the anterior or posterior aspects
• at E18.5 and 15.5, 18 of 21 embryos analyzed show a complete cleft of the secondary palate
• morphogenesis of the palatal shelves is severely retarded and comes to a premature hold with elevated palatal shelves only apparent at E14.5 in contrast to wild-type where elevated shelves are seen at E14.25 and fusion occurs between E14.5 and 15.5


Contributing Projects:
Mouse Genome Database (MGD), Gene Expression Database (GXD), Mouse Models of Human Cancer database (MMHCdb) (formerly Mouse Tumor Biology (MTB)), Gene Ontology (GO)
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last database update
03/18/2025
MGI 6.24
The Jackson Laboratory