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Fig. 1. Amplified fragment length polymorphism (AFLP) analysis of 38 interspecific congruity backcross lines derived from the cross between common bean (Phaseolus vulgaris) cultivar ICA Pijao (P.v.) and tepary bean (P. acutifolius) accession G40001 (P.a.) using the AFLP primer combination E-ACC/M-CTA. Arrows indicate polymorphic bands associated with introgression of tepary bean allele in a common bean background. A 25-bp ladder was used as a MW size standard.