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Phenotypes Associated with This Genotype
Genotype
MGI:7703723
Allelic
Composition
Styxl1em1Xjg/Styxl1em1Xjg
Genetic
Background
involves: C57BL/6J
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Styxl1em1Xjg mutation (0 available); any Styxl1 mutation (24 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
reproductive system
N
• testes to body weight ratio is similar to controls
• extrememly reduced numbers in the cauda epididymis
• sperm from the cauda epididymis show severe morphological defects including abnormal heads and bent or coiled tails
• apparent scarcity of flagella at stage VII-VIII
• defects in formation are detected at step 9 during spermiogenesis
• displaced microtubules
• abnormal '9+2' atructure
• in the midpiece or principal piece
• absence of microtubules
• elongating spermatids undergoing spermiogenesis show deformed acrosomes
• nuclear abnormalities are seen starting at step 10 in elongating spermatids
• elongating spermatids undergoing spermiogenesis show abnormally constricted nuclei at the site of perinuclear rings and deformed acrosome and malformed nuclei
• nuclear abnormalities are seen starting at step 10 in elongating spermatids and fewer tails are present in the lumen at stage VII-VIII
• elongating spermatids undergoing spermiogenesis show abnormally constricted nuclei at the site of perinuclear rings, deformed acrosome and malformed nuclei, and asymmetric and abnormally elongated manchette microtubules
• elongating spermatids undergoing spermiogenesis show asymmetric and abnormally elongated manchette microtubules
• elongated abnormally along the nuclear surface
• males are completely infertile

cellular
• extrememly reduced numbers in the cauda epididymis
• sperm from the cauda epididymis show severe morphological defects including abnormal heads and bent or coiled tails
• apparent scarcity of flagella at stage VII-VIII
• defects in formation are detected at step 9 during spermiogenesis
• displaced microtubules
• abnormal '9+2' atructure
• in the midpiece or principal piece
• absence of microtubules
• elongating spermatids undergoing spermiogenesis show deformed acrosomes
• nuclear abnormalities are seen starting at step 10 in elongating spermatids
• elongating spermatids undergoing spermiogenesis show abnormally constricted nuclei at the site of perinuclear rings and deformed acrosome and malformed nuclei
• nuclear abnormalities are seen starting at step 10 in elongating spermatids and fewer tails are present in the lumen at stage VII-VIII
• elongating spermatids undergoing spermiogenesis show abnormally constricted nuclei at the site of perinuclear rings, deformed acrosome and malformed nuclei, and asymmetric and abnormally elongated manchette microtubules
• elongating spermatids undergoing spermiogenesis show asymmetric and abnormally elongated manchette microtubules
• elongated abnormally along the nuclear surface


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
12/17/2024
MGI 6.24
The Jackson Laboratory