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Phenotypes associated with this allele
Allele Symbol
Allele Name
Allele ID
pal
palloncino
MGI:5004957
Summary 1 genotype
Jump to Allelic Composition Genetic Background Genotype ID
hm1
pal/pal involves: 129S1/Sv * C57BL/6 * FVB/NJ MGI:5006955


Genotype
MGI:5006955
hm1
Allelic
Composition
pal/pal
Genetic
Background
involves: 129S1/Sv * C57BL/6 * FVB/NJ
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No mouse lines available in IMSR.
See publication links below for author information.
phenotype observed in females
phenotype observed in males
N normal phenotype

Balooning phenotype, reflecting Inflated vasculature in E9.5-10.5 pal/pal embryos

mortality/aging

cardiovascular system
• at E9.5-10.5, mutants display diminished cranial vascular plexi
• at E9.5-10.5, mutants lack caudal pharyngeal arch arteries
• at E9.5-10.5, mutants exhibit dilated rostral arch arteries

craniofacial
• at E9.5-10.5, mutants lack caudal pharyngeal arch arteries
• at E9.5-10.5, mutants exhibit dilated rostral arch arteries
• abnormal pharyngeal hinge morphology with a modest cleft due to hypoplasia of both the maxillary and mandibular prominences
• abnormal pharyngeal hinge morphology with a modest cleft due to hypoplasia of both the maxillary and mandibular prominences
• agenesis of the fourth pharyngeal arch
• agenesis of the third pharyngeal arch

embryo
• at E9.5-10.5, mutants lack caudal pharyngeal arch arteries
• at E9.5-10.5, mutants exhibit dilated rostral arch arteries
• agenesis of the fourth pharyngeal arch
• agenesis of the third pharyngeal arch
• at E9.5, mutant embryos are one half to two-thirds the size of control littermates
• at E9.5, perturbation of cranial neural crest cell development

growth/size/body
• at E9.5, mutant embryos are one half to two-thirds the size of control littermates

hearing/vestibular/ear
• at E9.5, the otocyst is displaced rostrally and the otic placode frequently gives rise to multiple supernumerary otocyst adjacent to the caudal hindbrain and rostral spinal cord

nervous system
• at E9.5 mutants exhibit a near complete nervous system agenesis; no evidence of the neuronal network or plexus that forms in the midbrain
• at E9.5 little evidence of any overt neural differentiation in association with the cranial ganglia
• at E9.5, perturbation of cranial neural crest cell development
• extreme hypoplasia or agenesis of the facioacoustic/vestibulocochlear ganglia
• extreme hypoplasia or agenesis of the glossopharyngeal ganglia
• extreme hypoplasia or agenesis of the trigeminal ganglia
• extreme hypoplasia or agenesis of the vagal ganglia

cellular
• at E9.5 little evidence of any overt neural differentiation in association with the cranial ganglia





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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
10/22/2024
MGI 6.24
The Jackson Laboratory