embryos Protocols

Category: Xenopus Protocols: Xenopus Embryo Manipulation Protocols

Protocol for the fixation of xenopus embryos. - [Read Fixation of Xenopus Embryos]

Category: Primary Cell Isolation and Culture Protocols: Mammalian Cell Culture Protocols

This protocol describes a method for recombining and culturing germ layer fragments. It is useful for testing the inductive properties of fragments from wild-type and mutant mouse embryos. - [Read Germ Layer Explant Recombination Culture Protocol]

Category: Mouse Protocols: Mouse Cell Culture Protocols

Protocol describes a method for recombining and culturing germ layer fragments. It is useful for testing the inductive properties of fragments from wild-type and mutant mouse embryos. - [Read Germ Layer Explant Recombination Culture Protocol]

Category: C. elegans Protocols

Protocol for immunofluorescence of C. elegans embryos. - [Read Immunofluorescence of C. elegans Embryos Protocol]

Category: Avian Bird Protocols

Protocol describes a method for in ovo transfection of avian embryos with double-stranded RNA (dsRNA). The dsRNA is injected into the spinal cord of the embryo. Subsequent electroporation facilitates the cellular uptake of the dsRNA molecules. - [Read Injection of dsRNA and Electroporation in Avian Embryos Protocol]

Category: RNAi Technology Protocols: RNAi Avian Embryos Protocols

Protocol describes a method for in ovo transfection of avian embryos with double-stranded RNA (dsRNA).  The dsRNA is injected into the spinal cord of the embryo.  Subsequent electroporation facilitates the cellular uptake of the dsRNA molecules.  It may be necessary to optimize the stage of the embryo and the electroporation procedure to improve the effectiveness of in ovo RNAi—cell competence changes with differentiation. - [Read Injection of dsRNA and Electroporation in Avian Embryos Protocol]

Category: Stem Cell Protocols: Stem Cell Isolation Protocols

Isolation of postimplantation-stage embryos allows one to study normal development as well as genetic mutations which cause postimplantation defects. This protocol describes a method for isolation of early neural-fold-stage embryos. - [Read Isolating Postimplantation Embryos: Early Neural-Fold-Stage Protocol]

Category: Stem Cell Protocols: Stem Cell Isolation Protocols

Isolation of postimplantation-stage embryos allows one to study normal development as well as genetic mutations which cause post-implantation defects. This protocol describes a method for isolating early primitive-streak-stage embryos. - [Read Isolating Postimplantation Embryos: Early Primitive-Streak-Stage Protocol]

Category: Stem Cell Protocols: Stem Cell Isolation Protocols

Isolation of postimplantation-stage embryos allows one to study normal development as well as genetic mutations which cause postimplantation defects. This protocol describes a method for isolating early somite-stage embryos (~8.5 days post coitum [dpc]). - [Read Isolating Postimplantation Embryos: Early Somite-Stage Protocol]

Category: Stem Cell Protocols: Stem Cell Isolation Protocols

Isolation of postimplantation-stage embryos allows one to study normal development as well as genetic mutations which cause postimplantation defects. This protocol describes a method for isolating late primitive-streak-stage embryos (~7.5 days post coitum [dpc]). - [Read Isolating Postimplantation Embryos: Late Primitive-Streak-Stage Protocol]

Category: Stem Cell Protocols: Stem Cell Isolation Protocols

Isolation of postimplantation-stage embryos allows one to study normal development as well as genetic mutations that cause post-implantation defects. This protocol describes a method for isolating prestreak-stage embryos (~5.5 days post coitum [dpc]). - [Read Isolating Postimplantation Embryos: Prestreak-Stage Protocol]

Category: Stem Cell Protocols: Feeder Cell Preparation Protocols

This protocol describes the isolation of fibroblasts from mouse embryos. Mouse embryonic fibroblast (MEF) cells are used as a feeder layer for the culture of mouse embryonic stem (ES) cells to help maintain them as pluripotent stem cells. The inhibition of ES-cell differentiation provided by the MEF feeders appears to be due to their production of leukemia inhibitory factor (LIF). - [Read Isolation and Freezing of Primary Mouse Embryonic Fibroblasts (MEF) For Feeder Plates]

Category: Stem Cell Protocols: Stem Cell Isolation Protocols

This protocol describes the isolation of fibroblasts from chicken embryos. - [Read Isolation of Fibroblasts from Chicken Embryos Protocol]

Category: Primary Cell Isolation and Culture Protocols: Mammalian Cell Culture Protocols

This protocol describes the isolation of fibroblasts from mouse, rat, and hamster embryos. - [Read Isolation of Fibroblasts from Mammalian Embryos Protocol]

Category: Mouse Protocols: Mouse Embryology Protocols

Isolation of mouse embryos video clip. - [Read Isolation of Mouse Embryos Video Clip]

Category: Cell Biology and Cell Culture: ES Stem Cell Biology and Culture

Isolation of Primary Fibroblasts from Mouse Embryos. Bradley's Lab, Texas. - [Read Isolation of Primary Fibroblasts from Mouse Embryos]

Category: Xenopus Protocols: Xenopus Genetics Protocols

Protocol for karyotyping Xenopus embryos. - [Read Karyotyping Xenopus Embryos Protocol]

Category: C. elegans Protocols

To image early cleavages and chromatin dynamics, it is convenient to use histone H2B fused to GFP or lamin::GFP. Time-lapse movies can be obtained using conventional confocal microscope systems and their included software. Early embryos dissected from transgenic hermaphrodites are placed with egg salts on agar pads. - [Read Live Imaging of Caenorhabditis elegans: Examples]

Category: Xenopus Protocols: Xenopus Injection Protocols

Protocol for making and injecting Xenopus embryos. Includes: Injections; Egg Activation and Inversion Experiments; - [Read Making and Injecting Xenopus Embryos Protocol]

Category: Microinjection Protocols: Microinjection of DNA Protocols

This protocol provides a description of how to introduce double-stranded RNA (dsRNA) into Drosophila embryos by microinjection. Several days of preparation are required before injections into Drosophila embryos begin. Flies must be in abundant supply for egg collection. Bombardment of embryos with dsRNA-coated gold particles (Delivery of dsRNA into Drosophila Embryos by a Gene Gun) can be used as an alternative. - [Read Microinjection of dsRNA into Drosophila Embryos Protocol]

Category: RNAi Technology Protocols: RNAi Mouse Embryos and Oocytes Protocols

Protocol describes how to introduce a double-stranded RNA (dsRNA) of choice into mouse oocytes or fertilized one-cell embryos by microinjection.  For collection of mouse oocytes and early embryos, see Collection of Mouse Oocytes for RNAi and Collection of Early Mouse Embryos for RNAi. - [Read Microinjection of dsRNA into Mouse Oocytes and Early Embryos Protocol]

Category: Developmental Biology: Embryology Protocols

A simple and inexpensive chamber for regulating gaseous environment of small culture plates, such as those used for culture of preimplantation embryos, can be constructed using disposable media-filtration devises such as Corning’s 115-ml system. The following is a description of how to make such a device. - [Read Mini-Chamber for Regulating Gaseous Environment During Culture]

Category: Mouse Protocols: Mouse Reproductive System Surgery Protocols

Protocol describes how to remove the gonads, determine the sex ofmouse embryos 13.5 days post coitum and visualize the germ cells, through use of an alkaline phosphatase staining. - [Read Mouse Gonad Removal and Germ Cell Staining Protocol]

Category: Mouse Protocols: Mouse Reproductive System Surgery Protocols

Protocol describes oviduct transfer of mouse embryos. It is based on the Whittingham method, which applied a well described procedure for the rat to the mouse. It is best to practice this procedure first on a cadaver and then on an anesthetized 0.5-dpc pseudopregnant mouse using a dye solution or blue Affigel beads rather than embryos to gain experience in finding the opening of the oviduct (infundibulum). - [Read Oviduct Transfer Protocol]

Category: Drosophila Protocols: Drosophila Genetics Protocols

Protocol describes how to produce a soluble nuclear extract rich in basal pol II transcription factors from Drosophila embryos. This is a cell-free extract that contains all the necessary transcription factors and is capable of accurate initiation of transcription by RNA polymerase II but is deficient in core histones and histone H1. - [Read Preparation of a Highly Efficient Transcription Extract from Drosophila Embryos Protocol]