A cross between F1 hybrid and one of its parents is known as a backcross. Harlan and Pope in 1922 first proposed backcrossing as an appropriate breeding method for cereal crops. Since then, backcrossing became a widely accepted breeding strategy in diverse crops. This is used to transfer one or a few traits into an adapted/elite variety. Mostly, the elite variety used for backcrossing (called the “recurrent parent” or “recipient parent”) used to have a large number of desirable attributes but may be deficient in a few traits. The other parent, called the “donor parent” (or “non-recurrent parent”), lodges one or more traits that is lacking in the elite variety, but with poor agronomic traits.
KeywordsGenetic consequences of backcrossing Procedure of backcross Recovery rate of RP genes Molecular marker-assisted backcrossing Recurrent selection in backcross Transfer of quantitative characters AB-QTL in cross-pollinated crops Merits and demerits of backcross breeding
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