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Phenotypes Associated with This Genotype
Genotype
MGI:3026718
Allelic
Composition
inft4/inft4
Genetic
Background
Not Specified
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phenotype observed in females
phenotype observed in males
N normal phenotype
reproductive system
N
• normal external genitalia, seminal vesicle size, testicular descent and seminiferous tubules
• sperm with stumped, short tails were present
• severely reduced epididymal sperm count, resulting in decreased testis weight
• many sperm exhibited club-shaped heads
• absence of forwardly progressive motile sperm
• block of spermatogenesis at the late differentiating spermatids stage (J:85113)
• spermatogenic arrest at stage VII, with spermatids in step 8 of spermiogenesis; apoptotic nuclei were noted in spermatids and in the tubule lumen (J:89386)

cellular
• sperm with stumped, short tails were present
• severely reduced epididymal sperm count, resulting in decreased testis weight
• many sperm exhibited club-shaped heads
• absence of forwardly progressive motile sperm


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
04/09/2024
MGI 6.23
The Jackson Laboratory