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Phenotypes associated with this allele
Allele Symbol
Allele Name
Allele ID
Spgl
spag luxate
MGI:3576619
Summary 4 genotypes
Jump to Allelic Composition Genetic Background Genotype ID
hm1
Spgl/Spgl involves: BALB/cAnNCrl * C3H/He MGI:5544753
ht2
Spgl/Spgl+ involves: BALB/cAnNCrl * C3H/He MGI:5544744
ht3
Spgl/Spgl+ involves: BALB/cAnNCrl * C3H/He * C57BL/6 MGI:5544748
ht4
Spgl/Spgl+ involves: BALB/cAnNCrl * C3H/He * M. m. castaneus MGI:5544752


Genotype
MGI:5544753
hm1
Allelic
Composition
Spgl/Spgl
Genetic
Background
involves: BALB/cAnNCrl * C3H/He
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Spgl mutation (2 available); any Spgl mutation (2 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
craniofacial
• craniofacial defects are sometimes present (not fully penetrant)

limbs/digits/tail
• non-mirror-image polydactyly of the hindlimbs accompanied by mirror-image polydactyly of the forelimbs
• tibiae are greatly reduced or absent, resulting in a rotational defect of the hindlimbs
• tibiae are greatly reduced or absent, resulting in a rotational defect of the hindlimbs

reproductive system
N
• homozygous mutant mice of both sexes are fertile

skeleton
• tibiae are greatly reduced or absent, resulting in a rotational defect of the hindlimbs




Genotype
MGI:5544744
ht2
Allelic
Composition
Spgl/Spgl+
Genetic
Background
involves: BALB/cAnNCrl * C3H/He
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Spgl mutation (2 available); any Spgl mutation (2 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
limbs/digits/tail
• mirror-image polydactyly of both hindlimbs; forelimbs are unaffected
• Background Sensitivity: on this genetic background, the limb phenotype is highly penetrant

reproductive system
N
• heterozygous mutant mice of both sexes are fertile




Genotype
MGI:5544748
ht3
Allelic
Composition
Spgl/Spgl+
Genetic
Background
involves: BALB/cAnNCrl * C3H/He * C57BL/6
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Spgl mutation (2 available); any Spgl mutation (2 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
limbs/digits/tail
• mirror-image polydactyly of both hindlimbs; forelimbs are unaffected
• Background Sensitivity: on this genetic background, the limb phenotype is highly penetrant




Genotype
MGI:5544752
ht4
Allelic
Composition
Spgl/Spgl+
Genetic
Background
involves: BALB/cAnNCrl * C3H/He * M. m. castaneus
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Spgl mutation (2 available); any Spgl mutation (2 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
limbs/digits/tail
N
• when mutant mice are outcrossed to M. m. castaneus mice, no pups with limb abnormalities are observed, suggesting low or no penetrance of the limb phenotype in this background





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last database update
12/10/2024
MGI 6.24
The Jackson Laboratory