title: Studies on chemically induced dominant lethality. III. Cytogenetic analyses of TEM-effects on maturing dictyate mouse oocytes.
abstract: A comparative cytogenetic study was done on metaphase-I oocytes and first cleavage mitoses following treatment of young mature female mice with triethylenemelamine (TEM). The ova were collected at intervals ranging from 12 h to 10.5 days after single intraperitoneal injection of TEM. Very few structural aberrations were seen in the metaphase-I cells after TEM treatment. There was, however, a very clear effect on the female genome when first cleavage mitoses were analyzed. The aberrations seen were principally chromatid deletions and interchanges, and their frequency varied with dose and the time between treatment and mating.
mesh_terms: D000818:Animals; D002869:Chromosome Aberrations; D002875:Chromosomes / Q000187:drug effects*; D005260:Female; D008540:Meiosis; D051379:Mice; D008938:Mitosis; D009865:Oocytes / Q000166:cytology / Q000187:drug effects*; D010063:Ovum / Q000187:drug effects*; D013997:Time Factors; D014265:Triethylenemelamine / Q000494:pharmacology*
chemical_list: D014265:Triethylenemelamine