endocrine/exocrine glands
ovary cyst
(
J:19118
)
• ovarian cysts are found in 5 mutant females but not in wild-type (0/19) or heterozygous animals (0/10); incidence is high (4/7) in females older than 6 months
• cysts are serous, bilateral, multilocular in older mice and sometimes infiltrated with blood; smaller cysts are predominantly composed of epithelial tissue, while larger cysts (2/5) contain tissue types typical of a teratoma
|
reproductive system
N |
• normal sperm count and spermatogenesis
|
• eggs isolated 18 hours after human chorionic gonadotropin treatment display 2 polar bodies and no pronuclei while egg from wild-type littermates have only one polar body
|
• eggs failed to arrest during meiosis, leading to spontaneous parthenogenetic activation (progress through meiosis II, germinal vesicle breakdown, extrusion of polar bodies, and cleavage)
|
• eggs isolated 18 hours after human chorionic gonadotropin treatment display 2 polar bodies and no pronuclei while egg from wild-type littermates have only one polar body
(J:19118)
• ~40% of mutant eggs maintained in culture develop a pronucleus indicating parthenogenetic development; 30% of these cleave into 2 nucleated cells and occasionally to 4 cells
(J:19118)
• mutant eggs that fail to cleave undergo cytoplasmic fragmentation which is not seen in wild-type eggs
(J:19118)
• in Mos-deficient oocytes the meiotic spindle does not migrate in contrast to wild-type; rather, it elongates dramatically followed by cortical polarization
(J:110272)
|
ovary cyst
(
J:19118
)
• ovarian cysts are found in 5 mutant females but not in wild-type (0/19) or heterozygous animals (0/10); incidence is high (4/7) in females older than 6 months
• cysts are serous, bilateral, multilocular in older mice and sometimes infiltrated with blood; smaller cysts are predominantly composed of epithelial tissue, while larger cysts (2/5) contain tissue types typical of a teratoma
|
• females but not males have reduced fertility
|
• females have litters with average size of 2 pups, compared to wild-type and heterozygous females which have ~7 pups/litter
|
cellular
• eggs isolated 18 hours after human chorionic gonadotropin treatment display 2 polar bodies and no pronuclei while egg from wild-type littermates have only one polar body
|
• eggs failed to arrest during meiosis, leading to spontaneous parthenogenetic activation (progress through meiosis II, germinal vesicle breakdown, extrusion of polar bodies, and cleavage)
|
• eggs isolated 18 hours after human chorionic gonadotropin treatment display 2 polar bodies and no pronuclei while egg from wild-type littermates have only one polar body
(J:19118)
• ~40% of mutant eggs maintained in culture develop a pronucleus indicating parthenogenetic development; 30% of these cleave into 2 nucleated cells and occasionally to 4 cells
(J:19118)
• mutant eggs that fail to cleave undergo cytoplasmic fragmentation which is not seen in wild-type eggs
(J:19118)
• in Mos-deficient oocytes the meiotic spindle does not migrate in contrast to wild-type; rather, it elongates dramatically followed by cortical polarization
(J:110272)
|
growth/size/body
ovary cyst
(
J:19118
)
• ovarian cysts are found in 5 mutant females but not in wild-type (0/19) or heterozygous animals (0/10); incidence is high (4/7) in females older than 6 months
• cysts are serous, bilateral, multilocular in older mice and sometimes infiltrated with blood; smaller cysts are predominantly composed of epithelial tissue, while larger cysts (2/5) contain tissue types typical of a teratoma
|