Gene pyramiding is the simultaneous selection for and/or introduction of multiple genes during plant breeding.
[1] Objectives of gene pyramiding includes 1) enhancing trait performance by combining two or more complementary genes, 2) remedying deficits by introgressing genes from other sources, 3) increasing the durability.
[2] For example, pyramiding has been successfully demonstrated in Oryza sativa for rice blast, producing durable multi-race resistance simultaneously.
[4] Gene stacking can be achieved a few different ways, and pyramiding is one of those methods.
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