Pre-breeding involving Crop Wild Relatives (CWRs) plays a crucial role in enhancing crop genetic diversity and improving resilience. It primarily captures valuable traits and adapts them into forms usable for breeding programs. This process hinges on extensive evaluations for disease resistance and adaptation to various soil and climate conditions, along with numerous crossing and selection cycles. Pre-breeding has enhanced disease resistance and drought tolerance in crops such as maize, pearl millet, and sorghum. Although it offers long-term benefits, pre-breeding also faces challenges such as linkage drag and hybrid sterility. Ultimately, pre-breeding plays a crucial role in generating genetic diversity and introducing new traits to develop improved crop varieties.
Genetic diversity, Crop Wild Relatives, introgression, linkage-drag, Pre breeding
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