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Phenotypes Associated with This Genotype
Genotype
MGI:2660806
Allelic
Composition
Tial1tm1Mst/Tial1tm1Mst
Genetic
Background
involves: 129S2/SvPas * C57BL/6
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Tial1tm1Mst mutation (0 available); any Tial1 mutation (22 available)
phenotype observed in females
phenotype observed in males
N normal phenotype

Lack of germ cells in Tial1tm1Mst/Tial1tm1Mst mouse testes and ovaries

mortality/aging
• less than half of the birthed pups survived to adulthood
• greater than 60% died in utero

embryo

endocrine/exocrine glands
• hyperplastic sex cord derivatives resulted in ovaries that were 5 times larger by 8 months of age
• prior to hyperplasia, the ovaries were smaller than those of wild-type
• approximately 1/3 the size of wild-type

growth/size/body
• hyperplastic sex cord derivatives resulted in ovaries that were 5 times larger by 8 months of age

reproductive system
• reduced number of primordial germ cells at the genital ridge at E11.5 and E13.5, putatively due to apoptosis
• no ectopic PGCs were observed
• germ cells were absent from the seminferous tubules
• hyperplastic sex cord derivatives resulted in ovaries that were 5 times larger by 8 months of age
• prior to hyperplasia, the ovaries were smaller than those of wild-type
• approximately 1/3 the size of wild-type

cellular
• reduced number of primordial germ cells at the genital ridge at E11.5 and E13.5, putatively due to apoptosis
• no ectopic PGCs were observed
• germ cells were absent from the seminferous tubules


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
03/18/2025
MGI 6.24
The Jackson Laboratory