Snap bean (Phaseolus vulgaris L.) is low in fat and high in nutrients; however, it also contains toxigenic factors such as phytohemagglutinin (PHA), which is poisonous to humans. Here, we aimed to determine the distribution of PHA in natural populations of snap bean by analyzing a candidate gene (PHA-E) related to PHA content. Functional genome-wide single nucleotide polymorphisms (SNPs) were then scanned to identify SNPs related to PHA content. A total of 150 snap bean...