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Dendogram showing genetic relationships among 16 American and European elderberry genotypes as determined by Target Region Amplification Polymorphism (TRAP) markers. Among the 16 genotypes evaluated, ‘Marge’ is most closely related to the European cultivars ‘Samdal’ and ‘Samyl’ (the remaining genotypes in the dendogram are American). Collection and provenance information for most of these American elderberry genotypes are found in Finn et al. (2008) and Thomas and Byers (2000).
