mortality/aging
• homozygous offspring were born at the expected mendelian ratio but died within hours of birth due most likely to respiratory distress
|
respiratory system
limbs/digits/tail
• truncated limbs
|
craniofacial
• severe craniofacial abnormalities
|
endocrine/exocrine glands
small testis
(
J:126705
)
• testes of homozygous neonates were significantly smaller than wild-type
|
reproductive system
• virtually no germ cells were found in homozygous mice testes
• normal number of germ cells were found in ovaries of homozygous mutant neonates
|
• at E12.5 mutant testes were indistinguishable from wild-type
• at E13.5, some germ cells exhibited dark condensed nuclei, typical of apoptotic cells
• at E14.5, some germ cells in mutant testes appeared to be apoptotic, whereas others appeared to be in the zygotene stage of meiosis
• at all stages examined mutant testes had significantly more TUNEL positive cells within the testis cords
• non-apoptotic germ cells in mutant testes contains cells in zygotene stage at E14.5 and in pachytene stage by E16.5 indicating that the germ cells enter meiosis
• immunohistochemical staining suggest that Sertoli and Leydig cells develop normally in mutant testes
|
small testis
(
J:126705
)
• testes of homozygous neonates were significantly smaller than wild-type
|
cellular
• virtually no germ cells were found in homozygous mice testes
• normal number of germ cells were found in ovaries of homozygous mutant neonates
|
• at E12.5 mutant testes were indistinguishable from wild-type
• at E13.5, some germ cells exhibited dark condensed nuclei, typical of apoptotic cells
• at E14.5, some germ cells in mutant testes appeared to be apoptotic, whereas others appeared to be in the zygotene stage of meiosis
• at all stages examined mutant testes had significantly more TUNEL positive cells within the testis cords
• non-apoptotic germ cells in mutant testes contains cells in zygotene stage at E14.5 and in pachytene stage by E16.5 indicating that the germ cells enter meiosis
• immunohistochemical staining suggest that Sertoli and Leydig cells develop normally in mutant testes
|