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Phenotypes Associated with This Genotype
Genotype
MGI:5013563
Allelic
Composition
Hormad1tm1.2Atot/Hormad1tm1.2Atot
Spo11tm1Mjn/Spo11tm1Mjn
Genetic
Background
involves: 129/Sv * BALB/c * C57BL/6 * SJL
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Hormad1tm1.2Atot mutation (0 available); any Hormad1 mutation (31 available)
Spo11tm1Mjn mutation (2 available); any Spo11 mutation (21 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
reproductive system
N
• unlike in Spo11tm1Sky homozygotes, oocyte numbers are normal
• pseudo-sex-body-like formation is impaired compared to in wild-type cells
• sex-body formation is impaired compared to in wild-type cells (J:173089)
• absence of double-stranded breaks (DSBs) in spermatocytes (J:292036)
• absence of BRME1 and RPA2 punctuate foci in spermatocytes (J:292036)
• synaptonemal-complex defects are more severe than either single homozygote

cellular
• pseudo-sex-body-like formation is impaired compared to in wild-type cells
• sex-body formation is impaired compared to in wild-type cells (J:173089)
• absence of double-stranded breaks (DSBs) in spermatocytes (J:292036)
• absence of BRME1 and RPA2 punctuate foci in spermatocytes (J:292036)
• synaptonemal-complex defects are more severe than either single homozygote


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
03/25/2025
MGI 6.24
The Jackson Laboratory