Protocol describes a method for producing diploid embryo-tetraploid embryo chimeras. It requires the timed combination of four-cell-stage tetraploid embryo production and the procedure for diploid embryo-diploid embryo aggregation. The resulting chimeras are useful for phenotypic analysis when an induced mutation has an extraembryonic phenotype. - [Read Assembling Aggregates between Diploid and Tetraploid Embryos Protocol]
Protocol describes a method for producing ES cell-tetraploid embryo chimeras. It requires the timed combination of four-cell-stage tetraploid embryo production and the procedure for ES cell-diploid embryo aggregation in which diploid embryos are replaced with tetraploid embryos. The resulting chimeras can be used to analyze the embryonic versus extraembryonic phenotype of a mutation. - [Read Assembling Aggregates between Embryonic Stem (ES) Cells and Tetraploid Embryos Protocol]
Protocol for the production of completely ES cell-derived fetuses by aggregation with tetraploid embryos. Includes: Recovery of 2-cell stage embryos; Production of tetraploid embryos; Preparation of aggregation plate; Removal of Zona Pellucida; ES cells/ tetraploid embryo "SANDWICH" aggregation;
Transfer of embryos. - [Read Production of Completely ES Cell-Derived Fetuses by Aggregation with Tetraploid Embryos]