Describes an experimental cross in mice that can be used to define and map induced germ-line mutations that map to a single chromosome. The cross is a modification and extension of a conventional three-generation recessive mutagenesis screen. Includes: The Mutagenesis Breeding Plan; Consomic Strains; Generating Mutations; Generating and Genotyping G2 Females; Genotyping G3 Progeny; Phenotyping G4 Progeny; etc.. - [Read A Targeted Screen to Detect Recessive Mutations that have Quantitative Effects Protocol]
4 strains of E. coli are used in these studies: JM101 for M13 infection and isolation, XL1BMRF'for M13 or pUC-based DNA transformation, and ED8767 for cosmid DNA transformation. To maintain their respective F' episomes necessary for M13 viral infection, JM101 is streaked onto a M9 minimal media plate and XL1BMRF' is streaked onto an LB plate containing tetracycline. ED8767 is streaked onto an LB plate. These plates are incubated at 37degC overnight. For each strain, 3 ml. of appropriate liquid.. - [Read Bacterial Cell Maintenance Protocol]
Virus-induced gene silencing (VIGS) uses a virus to deliver a sequence from a gene of interest into a host plant. The virus carrying the fragment of the gene of interest must be capable of replication if dsRNA is to be produced. One or two leaves are inoculated with Agrobacterium strains carrying the VIGS vector possessing the gene fragment. The virus then replicates and spreads throughout the plant, mediating silencing. - [Read Delivery of dsRNA into Plants by VIGS Methodology]
Protocol describes mutagenesis of yeast with ethyl methane sulfonate (EMS). It causes approximately 40-70% cell death in most haploid laboratory strains, a level of cell killing that is commonly used in mutant hunts with haploid strains. - [Read Ethyl Methane Sulfonate (EMS) Mutagenesis Protocol]
24-mer A=4, C=10, G=2, T=8, HLA-A2.1 ( 003475) primer designed in Mouse Genotyping lab. ... This genotyping protocol is used for the following strains: ... - [Read Genotyping Protocol for TgN(HLA-A2.1)1Enge]
Genotyping Protocol: MMRRC 425. Assay Type: PCR - can distinguish heterozygous animals from homozygous animals. DNA Extraction: DNA from tail snips was ... - [Read Genotyping Protocol: T1320 mouse]
How to Use Helper Strains for Maintaining and Crossing Handicapped Recessive Mutants- http://www.fgsc.net/neurosporaprotocols/How%20to%20use%20helper%20strains%20for%20maintaining%20and%20crossing%20handicapped%20recessive%20mutants,%20for%20forcing%20and%20resolving%20heterokaryons,%20and%20for%20determining%20heterokaryon%20compatibility
Protocol used chiefly to generate large stocks of double-stranded DNA of strains of M13 that are routinely used as cloning vectors. Large amounts of single-stranded DNA of an individual recombinant may occasionally be needed for specific purposes, e.g., to generate many preparations of a particular radiolabeled probe or to construct large numbers of site-directed mutants. - [Read Large-scale Preparation of Single-stranded and Double-stranded Bacteriophage M13 DNA Protocol]
Yeast strains may be stored indefinitely at low temperatures (-80 degrees C). Two archiving methods are presented below. In Method A , the cells are grown on a plate, while in Method B the cells are grown in liquid culture. - [Read Long Term Storage of Yeast Stocks Protocol]
Plasmid (pUC series) containing genomic DNA fragments are maintained in E. coli strain DH5aTM. The E. coli cultures are routinely cultured at 37 C on Luria-Bertani (LB) agar on or in LB broth containing Ampicillin (30 µg/ml) or Carbenicillin (50 µg/ml broth, 100 µg/ml agar). E. coli strains are usually preserved in stab agar or glycerol for mid-term storage and lyophilized for long-term storage. - [Read Maintenance of Probes in Bacteria Including Escherichia coli Protocol]
Insect cell cultures are now commonly used in insect physiology, developmental biology, pathology, and molecular biology. As the field has advanced from methods development to a standard procedure, so has the diversity of scientists using the technique. This paper describes methods that are effective for maintaining various insect cell lines. The procedures are differentiated between loosely or non-attached cell strains, attached cell strains, and strongly adherent cell strains. - [Read Methods for Maintaining Insect Cell Cultures]
Protocols for Neurospora methods. Includes: Standard strains; Crosses; Minimal medium; Color coding of media; Agar substrate for manipulation and isolation; Stock solutions of supplements; Mating-type tests; Preservation of stocks by silica gel; Cleaning of glassware; Control of mites. - [Read Neurospora Methods Protocols]
The protocol gives general considerations for the design of targeting vectors for transgenic mice. The protocol shares tips in the design of knock-out and knock-in vectors and some of their strategies for producing homologously recombined embryonic stem cells.