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Phenotypes associated with this allele
Allele Symbol
Allele Name
Allele ID
Dspd
dominant spermiognenesis defect
MGI:3052992
Summary 1 genotype
Jump to Allelic Composition Genetic Background Genotype ID
ht1
Dspd/Dspd+ involves: C3H * C57BL/6 MGI:3052994


Genotype
MGI:3052994
ht1
Allelic
Composition
Dspd/Dspd+
Genetic
Background
involves: C3H * C57BL/6
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Dspd mutation (1 available); any Dspd mutation (1 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
reproductive system
• almost all of the spermatozoa found in the epididymis have misshapen heads
• multinucleated spermatids are seen
• spermatids prematurely detach from the seminiferous epithelium
• the number of elongated spermatids is decreased compared to wild-type
• heterozygous females have reduced litter sizes
• no offspring are obtained despite normal mating behavior however in vitro fertilization with round spermatids produces offspring

cellular
• almost all of the spermatozoa found in the epididymis have misshapen heads





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
11/12/2024
MGI 6.24
The Jackson Laboratory