The work in these laboratories has for some years focused on mammalian meiosis, with particular emphasis on oogenesis. We have been concerned with the cytologic, biochemical, ultrastructural and hormonal aspects of this process in mammals, particularly human. This attention stems from the fundamental interest in the causes of abnormal progeny in the human, particularly the progeny who result from numerical or structural abnormalities in the germ cell genome. The present application takes a new direction built upon the body of data and hypotheses which hane resulted from this interest. The application process to examine (1) the characteristics of fetal mouse oogonia proceeding toward meiosis (2) chemical and conformational modifications of nuclei and mitochondria of oogeneis and spermatogenesis and (3) the model that distortion of pairing of homologues by microtubule inhibiting agents affects recombination. These studies bring together the biology of germ cell development and the simultaneous changes in the nucleus.

Agency
National Institute of Health (NIH)
Institute
Eunice Kennedy Shriver National Institute of Child Health & Human Development (NICHD)
Type
Research Project (R01)
Project #
5R01HD018735-03
Application #
3315881
Study Section
Reproductive Biology Study Section (REB)
Project Start
1984-04-01
Project End
1992-03-31
Budget Start
1986-04-01
Budget End
1987-03-31
Support Year
3
Fiscal Year
1986
Total Cost
Indirect Cost
Name
Columbia University (N.Y.)
Department
Type
Schools of Medicine
DUNS #
064931884
City
New York
State
NY
Country
United States
Zip Code
10027
Jagiello, G M; Fang, J S; Hembree, W C et al. (1992) Some characteristics of oogenesis in the female Turkish hamster subjected to modified environments. Environ Mol Mutagen 19:316-22
Jagiello, G M; Tantravahi, U; Ducayen, M B et al. (1987) Immunocytochemical evidence for methylation of the inactive X chromosome in human fetal oogonia. Proc Soc Exp Biol Med 186:223-8
Jagiello, G M; Fang, J S; Sung, W K et al. (1986) The hibernating male golden hamster as a model for studying homologue pairing, chiasma formation and disjunction during spermatogenesis. Biol Reprod 35:1037-43
Sung, W K; Van't Hof, J; Jagiello, G (1986) DNA synthesis studies in pre-meiotic mouse oogenesis. Exp Cell Res 163:370-80