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Phenotypes Associated with This Genotype
Genotype
MGI:5512772
Allelic
Composition
Ywhaetm1Awb/Ywhaetm1Awb
Genetic
Background
involves: 129S6/SvEvTac
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Ywhaetm1Awb mutation (1 available); any Ywhae mutation (65 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
mortality/aging
• die within 6 to 9 hours of birth

homeostasis/metabolism
• newborns exhibit cyanosis

cardiovascular system
• increase in heart cavity diameter
• hearts display deep intertrabecular recesses
• thinner compact myocardium at E12.5, with few cell layers forming the ventricular wall
• thinner ventricles at E12.5
• E12.5 mutants exhibit a reduction in ventricular compact myocardium thickness indicating ventricular non-compaction
• 60% of mutants exhibit ventricular septal defects at E18.5
• thin biventricular walls at E18.5
• biventricular dilatation in E18.5 hearts
• embryonic cardiomyocytes display cell cycle defects characterized by a reduced number in G2/M and an accumulation in the G0/G1 phase
• proliferation is decreased in E12.5 hearts and the mitotic index is 47% lower in whole hearts
• mitotic index is lower in the ventricles but not in the septum
• proliferation in the compact zone of the left ventricle is decreased

cellular
• mitotic index is lower in the ventricles but not in the septum
• proliferation in the compact zone of the left ventricle is decreased
• proliferation is decreased in E12.5 hearts and the mitotic index is 47% lower in whole hearts
• embryonic cardiomyocytes display cell cycle defects characterized by a reduced number in G2/M and an accumulation in the G0/G1 phase
• mitotic index in whole hearts is 47% lower than in controls and is also lower in the ventricles but not in the septum

muscle
• hearts display deep intertrabecular recesses
• thinner compact myocardium at E12.5, with few cell layers forming the ventricular wall
• E12.5 mutants exhibit a reduction in ventricular compact myocardium thickness indicating ventricular non-compaction
• proliferation is decreased in E12.5 hearts and the mitotic index is 47% lower in whole hearts
• mitotic index is lower in the ventricles but not in the septum
• proliferation in the compact zone of the left ventricle is decreased

Mouse Models of Human Disease
DO ID OMIM ID(s) Ref(s)
left ventricular noncompaction DOID:0060480 OMIM:604169
J:192860


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
12/10/2024
MGI 6.24
The Jackson Laboratory