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A backcrossing is a crossing of a hybrid with one of its parents. By backcrossing a F1 hybrid, its DNA becomes more similar to one of its parents. The result of the first backcrossing is called the ‘BC1 hybrid’ and subsequent backcrossings (with the same parent) are called BC2, BC3 etc.. Backcrossing is used in conventional plant breeding to obtain a new beneficial part of dna (from one of the parents of the F1 hybrid) in an existing wine grape (the parent that is used for the backcrossing).

>Read also: Breeding, genetic modification and CRISPR in the vineyard


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