What is a congenic strain?
A congenic strain is an inbred strain that contains a small genetic region (ideally a single gene) from another strain, but which is otherwise identical to the original inbred strain.
What is a Congenic marker?
Congenic strains are produced by repeated backcrosses to an inbred (background) strain, with selection for a particular marker from the donor strain (Snell 1978, Flaherty 1981).
What is congenic animals?
In genetics, two organisms that differ in only one locus and a linked segment of chromosome are defined as congenic. Similarly, organisms that are coisogenic differ in one locus only and not in the surrounding chromosome.
What is a congenic background?
Congenic strains are produced by transferring a mutation from one genetic background to a specific inbred strain through repeated backcrossing.
What is the difference between syngeneic and congenic?
is that syngeneic is (genetics) genetically identical, or sufficiently identical and immunologically compatible as to allow for transplantation while congenic is (genetics) (of different strains of an organism ) that are genetically identical except for a variation in a limited genetic region or locus.
What is a Congenic background?
What is the designation for offspring from the first backcross to generate a congenic strain?
In the derivation of any new congenic strain, the first cross is always an outcross, and the offspring are considered members of the F1 generation. The second cross is always a backcross, and the offspring are considered members of the N2 generation.
What’s the difference between coisogenic and cogenic?
Coisogenic vs Cogenic – What’s the difference? (genetics) Genetically identical to an inbred strain except for a mutation at a specific locus. Cogenic has no English definition. It may be misspelled.
What is a coisogenic strain?
Coisogenic strains are named with a compound symbol consisting of two parts separated by a hyphen: the first part is the full or abbreviated symbol for the original inbred strain; the second part is the symbol for the mutation or variant allele.
Is it possible to create a coisogenic mutant from cloned genes?
However, even when a gene has been cloned, and the generation of a coisogenic mutant through the gene targeting technology is a possibility, this approach is still extremely tedious and, at the time of this writing, there is no guarantee of a successful outcome.
What is a coisogenic mouse?
Coisogenic strains are produced when an inbred mouse becomes genetically identical to another, except with a difference at a single locus produced by mutation. Marjorie C. Strobel PhD, Kathleen Pritchett-Corning DVM, DACLAM, MRCVS, in Laboratory Animal Medicine (Third Edition), 2015
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