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Phenotypes Associated with This Genotype
Genotype
MGI:6506390
Allelic
Composition
Rec8tm1b(KOMP)Wtsi/Rec8tm1b(KOMP)Wtsi
Stag3tm1e.1(KOMP)Wtsi/Stag3tm1e.1(KOMP)Wtsi
Genetic
Background
B6N(Cg)-Rec8tm1b(KOMP)Wtsi Stag3tm1e.1(KOMP)Wtsi
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Rec8tm1b(KOMP)Wtsi mutation (1 available); any Rec8 mutation (25 available)
Stag3tm1e.1(KOMP)Wtsi mutation (1 available); any Stag3 mutation (54 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
reproductive system
• reduced number (25% of WT, 42-61% of either single KO) of recombination hotspots in leptotene-like spermatocytes
• absence of linear SC, forming instead a more punctuate SC around centromeres in spermatocytes

cellular
• reduced number (25% of WT, 42-61% of either single KO) of recombination hotspots in leptotene-like spermatocytes
• absence of linear SC, forming instead a more punctuate SC around centromeres in spermatocytes
• reduced number of double-strand DNA breaks (40% of either single KO or 60% of WT) in spermatocytes

homeostasis/metabolism
• reduced number of double-strand DNA breaks (40% of either single KO or 60% of WT) in spermatocytes


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