About   Help   FAQ
Phenotypes Associated with This Genotype
Genotype
MGI:6162247
Allelic
Composition
Spata16em2Osb/Spata16em2Osb
Genetic
Background
involves: 129S2/SvPas * C57BL/6 * C57BL/6NSlc * DBA/2
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Spata16em2Osb mutation (3 available); any Spata16 mutation (37 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
reproductive system
• testis size is significantly decreased relative to that in wild-type controls
• testis weight is significantly lower than that in wild-type controls
• rate of normal spermatogenesis is significantly reduced with 30/86 tubules observed in mutant testes versus 103/103 tubules in wild-type controls
• only a few spermatozoa are detected in the tubules of the caput and cauda epididymides, unlike in wild-type controls
• 7% of spermatozoa extracted from the cauda epididymis show abnormal head and tail morphology
• however, globozoospermia is not observed
• differentiation of round spermatids into mature spermatozoa is impaired
• almost all cells extracted from the cauda epididymis are arrested at the round spermatid stage
• adult male homozygotes are completely infertile due to a spermiogenic arrest
• mating behavior, ejaculation, and vaginal plug formation are normal
• female fertility is normal

cellular
• only a few spermatozoa are detected in the tubules of the caput and cauda epididymides, unlike in wild-type controls
• 7% of spermatozoa extracted from the cauda epididymis show abnormal head and tail morphology
• however, globozoospermia is not observed

endocrine/exocrine glands
• testis size is significantly decreased relative to that in wild-type controls
• testis weight is significantly lower than that in wild-type controls

Mouse Models of Human Disease
DO ID OMIM ID(s) Ref(s)
male infertility DOID:12336 J:258202


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)
Citing These Resources
Funding Information
Warranty Disclaimer, Privacy Notice, Licensing, & Copyright
Send questions and comments to User Support.
last database update
11/05/2024
MGI 6.24
The Jackson Laboratory