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 JoVE Immunology and Infection

Genetic Manipulation in Δku80 Strains for Functional Genomic Analysis of Toxoplasma gondii

1Department of Microbiology and Immunology, The Geisel School of Medicine at Dartmouth


JoVE 50598

Here we report a method for using type I and type II Δku80 strains of Toxoplasma gondii to efficiently generate targeted gene deletions and gene replacements for functional genomic analysis.

 JoVE Biology

Rapid Genetic Analysis of Epithelial-Mesenchymal Signaling During Hair Regeneration

1Program in Epithelial Biology, Stanford University School of Medicine


JoVE 4344

Tissue-specific analysis of a hair follicle regeneration model using lentivirus to mediate gain- or loss-of-function.

 JoVE Neuroscience

Morphological Analysis of Drosophila Larval Peripheral Sensory Neuron Dendrites and Axons Using Genetic Mosaics

1Disease Mechanism Research Core, RIKEN Brain Science Institute, 2Graduate School of Science and Engineering, Saitama University


JoVE 3111

The dendritic arborization sensory neurons of the Drosophila larval peripheral nervous system are useful models to elucidate both general and neuron class-specific mechanisms of neuron differentiation. We present a practical guide to generate and analyze dendritic arborization neuron genetic mosaics.

 JoVE Biology

Mating and Tetrad Separation of Chlamydomonas reinhardtii for Genetic Analysis

1Boyce Thompson Institute for Plant Research, Cornell University


JoVE 1274

Mating and tetrad separation are required for genetic analysis in Chlamydomonas reinhardtii. Here we demonstrate standard methods for gametogenesis, mating, zygote germination and tetrad dissection. This protocol consists of an easy-to-follow series of steps that will make genetic approaches amenable to scientists who are less familiar with Chlamydomonas.

 JoVE Biology

Mutagenesis and Analysis of Genetic Mutations in the GC-rich KISS1 Receptor Sequence Identified in Humans with Reproductive Disorders

1Division of Endocrinology and Metabolism, Department of Medicine, University of Miami Miller School of Medicine, 2Department of Molecular and Cellular Pharmacology, University of Miami Miller School of Medicine


JoVE 2897

Mutations in the kisspeptin receptor (KISS1R) are associated with reproductive disorders in patients. Here we describe how to introduce mutations of interest in the GC-rich sequence of KISS1R as well as the use of KISS1R constructs to characterize the degradation pathway of the receptor by immunoprecipitation and western blot.

 JoVE Biology

Mapping Bacterial Functional Networks and Pathways in Escherichia Coli using Synthetic Genetic Arrays

1Department of Molecular Genetics, University of Toronto, 2Banting and Best Department of Medical Research, Donnelly Centre, University of Toronto, 3Department of Biochemistry, Research and Innovation Centre, University of Regina


JoVE 4056

Systematic, large-scale synthetic genetic (gene-gene or epistasis) interaction screens can be used to explore genetic redundancy and pathway cross-talk. Here, we describe a high-throughput quantitative synthetic genetic array screening technology, termed eSGA that we developed for elucidating epistatic relationships and exploring genetic interaction networks in Escherichia coli.

 JoVE Biology

The Utility of Stage-specific Mid-to-late Drosophila Follicle Isolation

1Department of Anatomy and Cell Biology, University of Iowa Carver College of Medicine


JoVE 50493

Stage-specific isolation of mid-to-late Drosophila follicles is useful for a variety of purposes. Such follicles develop in culture, which allows for genetic and/or pharmacologic manipulations to be coupled with in vitro development assays and live imaging. Additionally, follicles can be used for molecular studies, such as isolating mRNA and protein.

 JoVE Biology

In Vivo Modeling of the Morbid Human Genome using Danio rerio

1Center for Human Disease Modeling, Department of Cell Biology, Duke University Medical Center, 2Department of Evolutionary Anthropology, Duke University, 3Department of Pediatrics, Duke University Medical Center


JoVE 50338

Here, we present a systematic approach for developing physiologically relevant, sensitive and specific in vivo assays for interpreting variation in human pathology. Transient genetic manipulation via microinjection of WT and mutant human mRNA and morpholino (MO) antisense oligonucleotides harness the tractability of the developing zebrafish embryo to rapidly assay pathogenic mutations, especially, but not exclusively, in the context of human developmental disorders.

 JoVE Environment

Methods for Performing Crosses in Setaria viridis, a New Model System for the Grasses

1Donald Danforth Plant Science Center, 2Boyce Thompson Institute


JoVE 50527

We have developed a methodology for performing crosses in Setaria viridis (S. viridis). The method involves pruning the panicle prior to a hot water treatment to kill viable pollen. Crosses are performed following a well-controlled growth regime and typically result in the recovery of 1 to 7 cross-pollinated seed/s per panicle.

 JoVE Clinical and Translational Medicine

A Protocol for Genetic Induction and Visualization of Benign and Invasive Tumors in Cephalic Complexes of Drosophila melanogaster

1Department of Biology, Western Kentucky University


JoVE 50624

Cooperation between an activated oncogene like RASV12 and mutations in cell polarity genes like scribbled, result in tumor growth in Drosophila where tumor cells also display invasive behaviors. Here a simple protocol for the induction and observation of the benign and invasive tumors is presented.

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