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Phenotypes associated with this allele
Allele Symbol
Allele Name
Allele ID
Fgfr2tm1.1Dor
targeted mutation 1.1, David M Ornitz
MGI:3044427
Summary 8 genotypes
Jump to Allelic Composition Genetic Background Genotype ID
hm1
Fgfr2tm1.1Dor/Fgfr2tm1.1Dor involves: 129X1/SvJ MGI:3044690
ht2
Fgfr2tm1.1Dor/Fgfr2hob involves: 129X1/SvJ * C57BL/6J * FVB/N MGI:5614321
ht3
Fgfr2tm1.1Dor/Fgfr2svs involves: 129X1/SvJ * CXB5/ByJ * FVB/N MGI:3705023
cn4
Fgfr1tm1Jpa/Fgfr1+
Fgfr2tm1Dor/Fgfr2tm1.1Dor
Twist2tm1(cre)Dor/Twist2+
involves: 129S1/Sv * 129X1/SvJ * C57BL/6 MGI:3813484
cn5
Fgfr1tm1Jpa/Fgfr1tm1.1Jpa
Fgfr2tm1Dor/Fgfr2tm1.1Dor
Twist2tm1(cre)Dor/Twist2+
involves: 129S1/Sv * 129X1/SvJ * C57BL/6 MGI:3813486
cn6
Fgfr2tm1Dor/Fgfr2tm1.1Dor
Twist2tm1(cre)Dor/Twist2+
involves: 129X1/SvJ MGI:3044704
cx7
Fgfr2tm1.1Dor/Fgfr2+
Spry2tm1.1Mrt/Spry2tm1.1Mrt
involves: 129P2/OlaHsd * 129X1/SvJ MGI:3702560
cx8
Fgfr2tm1.1Dor/Oatrhg involves: AKR/J * C57BL/6J * C57BL/6JEi * FVB/N MGI:6162253


Genotype
MGI:3044690
hm1
Allelic
Composition
Fgfr2tm1.1Dor/Fgfr2tm1.1Dor
Genetic
Background
involves: 129X1/SvJ
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Fgfr2tm1.1Dor mutation (0 available); any Fgfr2 mutation (87 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
mortality/aging
• death between E10 and E11, putatively due to the failure to form a functional placenta

embryo
• fetuses did not develop limb bud
• failure to form a functional placenta

limbs/digits/tail
• fetuses did not develop limb bud




Genotype
MGI:5614321
ht2
Allelic
Composition
Fgfr2tm1.1Dor/Fgfr2hob
Genetic
Background
involves: 129X1/SvJ * C57BL/6J * FVB/N
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Fgfr2hob mutation (0 available); any Fgfr2 mutation (87 available)
Fgfr2tm1.1Dor mutation (0 available); any Fgfr2 mutation (87 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
growth/size/body
• slightly smaller than wild-type at E14.5

limbs/digits/tail
• embryos lack limbs

reproductive system
• XY gonads exhibit an ovarian morphology and absence of Sertoli cell markers, indicating complete gonadal sex reversal

respiratory system
• lung hypoplasia




Genotype
MGI:3705023
ht3
Allelic
Composition
Fgfr2tm1.1Dor/Fgfr2svs
Genetic
Background
involves: 129X1/SvJ * CXB5/ByJ * FVB/N
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Fgfr2svs mutation (1 available); any Fgfr2 mutation (87 available)
Fgfr2tm1.1Dor mutation (0 available); any Fgfr2 mutation (87 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
endocrine/exocrine glands
• at P5, seminal vesicles have not started branching morphogenesis
• adult seminal vesicles lack all branching

reproductive system
• at P5, seminal vesicles have not started branching morphogenesis
• adult seminal vesicles lack all branching




Genotype
MGI:3813484
cn4
Allelic
Composition
Fgfr1tm1Jpa/Fgfr1+
Fgfr2tm1Dor/Fgfr2tm1.1Dor
Twist2tm1(cre)Dor/Twist2+
Genetic
Background
involves: 129S1/Sv * 129X1/SvJ * C57BL/6
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Fgfr1tm1Jpa mutation (0 available); any Fgfr1 mutation (221 available)
Fgfr2tm1.1Dor mutation (0 available); any Fgfr2 mutation (87 available)
Fgfr2tm1Dor mutation (3 available); any Fgfr2 mutation (87 available)
Twist2tm1(cre)Dor mutation (0 available); any Twist2 mutation (10 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
digestive/alimentary system
• there is about a 15% reduction in the length of the small intestine at E18.5 compared to controls




Genotype
MGI:3813486
cn5
Allelic
Composition
Fgfr1tm1Jpa/Fgfr1tm1.1Jpa
Fgfr2tm1Dor/Fgfr2tm1.1Dor
Twist2tm1(cre)Dor/Twist2+
Genetic
Background
involves: 129S1/Sv * 129X1/SvJ * C57BL/6
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Fgfr1tm1.1Jpa mutation (0 available); any Fgfr1 mutation (221 available)
Fgfr1tm1Jpa mutation (0 available); any Fgfr1 mutation (221 available)
Fgfr2tm1.1Dor mutation (0 available); any Fgfr2 mutation (87 available)
Fgfr2tm1Dor mutation (3 available); any Fgfr2 mutation (87 available)
Twist2tm1(cre)Dor mutation (0 available); any Twist2 mutation (10 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
digestive/alimentary system
• there is about a third reduction in the length of the small intestine at E18.5 compared to controls
• premature crypt-like structures occur in the small intestine of E18.5 embryos before the appearance of paneth cells
• proliferation of fibroblasts found in the proximal and distal small intestine mesenchyme is significantly reduced at E18.5

endocrine/exocrine glands
• premature crypt-like structures occur in the small intestine of E18.5 embryos before the appearance of paneth cells




Genotype
MGI:3044704
cn6
Allelic
Composition
Fgfr2tm1Dor/Fgfr2tm1.1Dor
Twist2tm1(cre)Dor/Twist2+
Genetic
Background
involves: 129X1/SvJ
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Fgfr2tm1.1Dor mutation (0 available); any Fgfr2 mutation (87 available)
Fgfr2tm1Dor mutation (3 available); any Fgfr2 mutation (87 available)
Twist2tm1(cre)Dor mutation (0 available); any Twist2 mutation (10 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
cellular
• osteoclasts were more mature (larger) than in control mice, but osteoclast activity did not differ from that of wild-type
• impaired osteoblast proliferation
• no increase in osteoblast apoptosis
• the mineral apposition rate (MAR) was undetectable at 3 and 4 weeks of age

craniofacial

growth/size/body
• characterized by reduced bone growth
• mice were 40% to 50% smaller than wild-type controls at 4 weeks of age
• normal growth resumed but adult mice remained 30% to 40% smaller than wild-type controls

limbs/digits/tail
• reduced length

skeleton
• the mineral apposition rate (MAR) was undetectable at 3 and 4 weeks of age
• shortened appendicular skeleton
• reduced length
• 40% decrease in metaphyseal area due to a reduction in the trabecular zone length and width
• shortened axial skeleton
• observed in some mice
• non-ossified gap in the dorsal midline of both the cervical and thoracic vertebrae
• bone mineral density was reduced in all mice
• though density increased with age, it remained decreased relative to that of wild-type
• while osteoblast differentiation was not affected, osteogenic regions contained fewer osteoblasts due to impaired proliferation
• several tarsal joins failed to develop, putatively due to a a failure of cavitation of the cartilaginous anlage prior to ossificiation of these bones
• skeletal dwarfism and decreased bone density
• decreased amount of trabecular bone; in some cases it was absent
• osteoclasts were more mature (larger) than in control mice, but osteoclast activity did not differ from that of wild-type
• reduced hypertrophic chondrocyte zone

hematopoietic system
• osteoclasts were more mature (larger) than in control mice, but osteoclast activity did not differ from that of wild-type

immune system
• osteoclasts were more mature (larger) than in control mice, but osteoclast activity did not differ from that of wild-type




Genotype
MGI:3702560
cx7
Allelic
Composition
Fgfr2tm1.1Dor/Fgfr2+
Spry2tm1.1Mrt/Spry2tm1.1Mrt
Genetic
Background
involves: 129P2/OlaHsd * 129X1/SvJ
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Fgfr2tm1.1Dor mutation (0 available); any Fgfr2 mutation (87 available)
Spry2tm1.1Mrt mutation (1 available); any Spry2 mutation (24 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
craniofacial
N
• unlike in mice homozygous for the Spry2 allele alone, no diastema tooth formation is seen




Genotype
MGI:6162253
cx8
Allelic
Composition
Fgfr2tm1.1Dor/Oatrhg
Genetic
Background
involves: AKR/J * C57BL/6J * C57BL/6JEi * FVB/N
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Fgfr2tm1.1Dor mutation (0 available); any Fgfr2 mutation (87 available)
Oatrhg mutation (1 available); any Oat mutation (18 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
normal phenotype
• double heterozygotes have normal vibrissae, fur and overall growth rate





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last database update
04/16/2024
MGI 6.23
The Jackson Laboratory