About   Help   FAQ
Phenotypes associated with this allele
Allele Symbol
Allele Name
Allele ID
Aldh1a2tm1Gdu
targeted mutation 1, Gregg Duester
MGI:2180721
Summary 6 genotypes
Jump to Allelic Composition Genetic Background Genotype ID
hm1
Aldh1a2tm1Gdu/Aldh1a2tm1Gdu involves: 129S1/Sv * 129X1/SvJ * C57BL/6 MGI:2180875
hm2
Aldh1a2tm1Gdu/Aldh1a2tm1Gdu involves: 129S1/Sv * 129X1/SvJ * Swiss Webster MGI:4431233
cx3
Aldh1a2tm1Gdu/Aldh1a2tm1Gdu
Aldh1a3tm1Gdu/Aldh1a3tm1Gdu
involves: 129S1/Sv * 129X1/SvJ * C57BL/6 MGI:3718031
cx4
Aldh1a1tm1Gdu/Aldh1a1tm1Gdu
Aldh1a2tm1Gdu/Aldh1a2tm1Gdu
Aldh1a3tm1Gdu/Aldh1a3tm1Gdu
involves: 129S1/Sv * 129X1/SvJ * C57BL/6 MGI:3718030
cx5
Aldh1a2tm1Gdu/Aldh1a2tm1Gdu
Tg(Hoxb7-EGFP)33Cos/0
involves: 129S1/Sv * 129X1/SvJ * C57BL/6 * CBA * Swiss Webster MGI:4431234
cx6
Aldh1a2tm1Gdu/Aldh1a2tm1Gdu
Aldh1a3tm1Gdu/Aldh1a3tm1Gdu
involves: 129S1/Sv * 129X1/SvJ * C57BL/6 * Swiss Webster MGI:4431236


Genotype
MGI:2180875
hm1
Allelic
Composition
Aldh1a2tm1Gdu/Aldh1a2tm1Gdu
Genetic
Background
involves: 129S1/Sv * 129X1/SvJ * C57BL/6
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Aldh1a2tm1Gdu mutation (1 available); any Aldh1a2 mutation (38 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
mortality/aging
• embryos survive until E10.5, but are being resorbed by E11.5

cardiovascular system
• abnormal heart chamber morphogenesis
• failure of heart looping

embryo
• lack of branchial arches 2 and 3
• lack of branchial arches 2 and 3
• however, the first arches are intact
• smaller than littermates after E8.75
• small somites

hearing/vestibular/ear
• small otic vesicles

growth/size/body
• smaller than littermates after E8.75
• short trunk

craniofacial
• lack of branchial arches 2 and 3
• lack of branchial arches 2 and 3
• however, the first arches are intact




Genotype
MGI:4431233
hm2
Allelic
Composition
Aldh1a2tm1Gdu/Aldh1a2tm1Gdu
Genetic
Background
involves: 129S1/Sv * 129X1/SvJ * Swiss Webster
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Aldh1a2tm1Gdu mutation (1 available); any Aldh1a2 mutation (38 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
renal/urinary system
• greatly reduced in size with relatively normal architecture by E14.5
• normal branching at E12.5
• mutants are treated with a small amount of retinoic acid to the maternal diet between E7 and E9 to bypass lethality due to heart defects




Genotype
MGI:3718031
cx3
Allelic
Composition
Aldh1a2tm1Gdu/Aldh1a2tm1Gdu
Aldh1a3tm1Gdu/Aldh1a3tm1Gdu
Genetic
Background
involves: 129S1/Sv * 129X1/SvJ * C57BL/6
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Aldh1a2tm1Gdu mutation (1 available); any Aldh1a2 mutation (38 available)
Aldh1a3tm1Gdu mutation (1 available); any Aldh1a3 mutation (26 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
vision/eye
• failure of ventral invagination of the optic vesicle at the point that defines the junction of the ventral retina and optic stalk is seen at E10.5 and E11.5 following maternal dietary retinoic acid treatment ending at E8.5




Genotype
MGI:3718030
cx4
Allelic
Composition
Aldh1a1tm1Gdu/Aldh1a1tm1Gdu
Aldh1a2tm1Gdu/Aldh1a2tm1Gdu
Aldh1a3tm1Gdu/Aldh1a3tm1Gdu
Genetic
Background
involves: 129S1/Sv * 129X1/SvJ * C57BL/6
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Aldh1a1tm1Gdu mutation (1 available); any Aldh1a1 mutation (39 available)
Aldh1a2tm1Gdu mutation (1 available); any Aldh1a2 mutation (38 available)
Aldh1a3tm1Gdu mutation (1 available); any Aldh1a3 mutation (26 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
vision/eye
• at E10.5 the ventral optic vesicle has not invaginated to form a complete optic cup following maternal dietary retinoic acid treatment ending at E8.5
• however, dorsal invagination does occur




Genotype
MGI:4431234
cx5
Allelic
Composition
Aldh1a2tm1Gdu/Aldh1a2tm1Gdu
Tg(Hoxb7-EGFP)33Cos/0
Genetic
Background
involves: 129S1/Sv * 129X1/SvJ * C57BL/6 * CBA * Swiss Webster
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Aldh1a2tm1Gdu mutation (1 available); any Aldh1a2 mutation (38 available)
Tg(Hoxb7-EGFP)33Cos mutation (1 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
renal/urinary system
• 50% reduction in branch numbers at E18 and earlier stages




Genotype
MGI:4431236
cx6
Allelic
Composition
Aldh1a2tm1Gdu/Aldh1a2tm1Gdu
Aldh1a3tm1Gdu/Aldh1a3tm1Gdu
Genetic
Background
involves: 129S1/Sv * 129X1/SvJ * C57BL/6 * Swiss Webster
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Aldh1a2tm1Gdu mutation (1 available); any Aldh1a2 mutation (38 available)
Aldh1a3tm1Gdu mutation (1 available); any Aldh1a3 mutation (26 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
renal/urinary system
• greatly reduced in size compared with homozygous Aldh1a2tm1Gdu mice at E14
• contain few ureteric bud branches or developing nephrons at E14





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)
Citing These Resources
Funding Information
Warranty Disclaimer, Privacy Notice, Licensing, & Copyright
Send questions and comments to User Support.
last database update
11/12/2024
MGI 6.24
The Jackson Laboratory