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Phenotypes Associated with This Genotype
Genotype
MGI:3851610
Allelic
Composition
Dmrt1tm1Zark/Dmrt1tm1.1Zark
Tg(Dhh-cre)1Mejr/0
Genetic
Background
involves: 129/Sv * C57BL/6
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Dmrt1tm1.1Zark mutation (0 available); any Dmrt1 mutation (47 available)
Dmrt1tm1Zark mutation (0 available); any Dmrt1 mutation (47 available)
Tg(Dhh-cre)1Mejr mutation (1 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
endocrine/exocrine glands
• at P9 Sertoli cells are randomly distributed unlike in controls
• at P14 tubules lack luminal space and are instead filled with a poorly organized mix of Sertoli cells and differentiating germ cells
• at P28 tubules contain no apparent germ cells and are filled with randomized, unpolarized Sertoli cells with immature morphology
• Sertoli cells fail to migrate properly and retain an immature morphology at P28

reproductive system
• by P9 the distribution of germs cells is highly abnormal with more cells in the center and fewer cells at the periphery of the tubules
• meiosis initiates but germ cells are absent by P28
• at P9 Sertoli cells are randomly distributed unlike in controls
• at P14 tubules lack luminal space and are instead filled with a poorly organized mix of Sertoli cells and differentiating germ cells
• at P28 tubules contain no apparent germ cells and are filled with randomized, unpolarized Sertoli cells with immature morphology
• Sertoli cells fail to migrate properly and retain an immature morphology at P28

cellular
• by P9 the distribution of germs cells is highly abnormal with more cells in the center and fewer cells at the periphery of the tubules
• meiosis initiates but germ cells are absent by P28


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
03/31/2026
MGI 6.24
The Jackson Laboratory