Mouse embryos containing two paternal (biparental andogenones) and two maternal (biparental gynogenones) pronuclei do not complete development but die soon after implantation. Preimplantation development of such embryos appears morphologically normal. Androgenetic embryos display failure of development of the embryo proper while gynogenones fail because of poor growth and/or differentiation of extraembryonic membranes. The overall objective of this proposal is to analyze the interactions of cells from gynogenones, androgenones and normal embryos in aggregation chimeras, thus determining whether cell lethality or failure of morphogenetic interactions is responsible for developmental failure. We propose to construct aggregation chimeras using various combinations of androgenetic, gynogenetic and normal blastomeres. Subsequent development of such embryos will be monitored and participation of each component determined. In order to determine the exact derivation of each cell in such chimeric embryos, in situ identification methods will be used. We propose to use embryos from transgenic mouse lines already developed in our laboratory. Foreign DNA sequences will be detected in nucleus of each cell by in situ DNA hybridization using biotinylated probes. Since each cell derived from transgenic embryos carries specific detectable sequences, the origin and contribution of each component of the chimeric embryo can be easily determined. By comparing spatial and quantitative distribution of gynogenetic, androgenetic and normal cells within embryos with the developmental capacity of various chimeric embryos we will determine the role of paternal and maternal genome in early morphogenetic events during mouse development.

Agency
National Institute of Health (NIH)
Institute
Eunice Kennedy Shriver National Institute of Child Health & Human Development (NICHD)
Type
Research Project (R01)
Project #
5R01HD023291-03
Application #
3323376
Study Section
Human Embryology and Development Subcommittee 2 (HED)
Project Start
1987-09-01
Project End
1990-08-31
Budget Start
1989-09-01
Budget End
1990-08-31
Support Year
3
Fiscal Year
1989
Total Cost
Indirect Cost
Name
Wistar Institute
Department
Type
DUNS #
042250712
City
Philadelphia
State
PA
Country
United States
Zip Code
19104
Latham, K E; Garrels, J I; Solter, D (1993) Two-dimensional gel analysis of protein synthesis. Methods Enzymol 225:473-89
Latham, K E; Solter, D (1993) Transplantation of nuclei to oocytes and embryos. Methods Enzymol 225:719-32
Latham, K E; Beddington, R S; Solter, D et al. (1993) Quantitative analysis of protein synthesis in mouse embryos. II: Differentiation of endoderm, mesoderm, and ectoderm. Mol Reprod Dev 35:140-50
Lamb, B T; Satyamoorthy, K; Solter, D et al. (1992) A DNA element that regulates expression of an endogenous retrovirus during F9 cell differentiation is E1A dependent. Mol Cell Biol 12:4824-33
Latham, K E; Solter, D; Schultz, R M (1992) Acquisition of a transcriptionally permissive state during the 1-cell stage of mouse embryogenesis. Dev Biol 149:457-62
Latham, K E; Garrels, J I; Chang, C et al. (1992) Analysis of embryonic mouse development: construction of a high-resolution, two-dimensional gel protein database. Appl Theor Electrophor 2:163-70
Latham, K E; Garrels, J I; Chang, C et al. (1991) Quantitative analysis of protein synthesis in mouse embryos. I. Extensive reprogramming at the one- and two-cell stages. Development 112:921-32
Latham, K E; Solter, D (1991) Effect of egg composition on the developmental capacity of androgenetic mouse embryos. Development 113:561-8
Lamb, B T; Satyamoorthy, K; Li, L et al. (1991) CpG methylation of an endogenous retroviral enhancer inhibits transcription factor binding and activity. Gene Expr 1:185-96
Latham, K E; Solter, D; Schultz, R M (1991) Activation of a two-cell stage-specific gene following transfer of heterologous nuclei into enucleated mouse embryos. Mol Reprod Dev 30:182-6

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