Abstract
The inheritance of specific flower colors in Petunia hybrida Vilm can be explained through the combined inheritance of anthocyanin pigmentation and pH. The inheritance of anthocyanin pigmentation is controlled by multiple independent genes (Hf and Mf) that follow simple Mendelian genetics. The inheritance of pH is more complex, being controlled by two independent codominant genes (Ph1 and Ph2). Linkage of the various pH and anthocyanin genes prevents the expression of all of the potential gene combinations.

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