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Taxonomy of Tepary Bean and Wild Relatives as Determined by Amplified Fragment Length Polymorphism (AFLP) Markers

Centro Internacional de Agricultura Tropical (CIAT), AA. 6713, Cali, Colombia

View larger version (17K): [in a new window]   Fig. 1. Geographic distribution of Phaseolus genotypes from Mesoamerica used for the AFLP study, including all P. acutifolius and P. parvifolius accessions (light dots) and other species accessions (dark dots). P. vulgaris and P. lunatus from South America are not shown.

View larger version (34K): [in a new window]   Fig. 2. UPGMA dendrograms showing the association among Group I accessions of cultivated and wild tepary bean (P. acutifolius and P. parvifolius), with other Phaseolus species using DICE genetic similarity coefficient for the AFLP primer combination A) E-AAG/M-CTT and B) E-ACC/M-CTA. Bootstrap confidence values given for species-level nodes. Wild (w) and cultivated (cv) groups within P. acutifolius indicated. Further information on accessions found in Table 1.

View larger version (30K): [in a new window]   Fig. 3. UPGMA dendrogram showing the association among Group II accessions of cultivated and wild tepary bean (P. acutifolius and P. parvifolius), with other Phaseolus species using DICE genetic similarity coefficient based on an AFLP dataset from two primers combinations: E-AAG/M-CTT and E-ACC/M-CTA. Bootstrap confidence values given for species-level nodes. Wild P. a. var. acutifolius accessions within the cultivated P. acutifolius clusters (I and II) indicated with (w); cultivated P. acutifolius and P. a. var. tenuifolius accessions within the wild P.a. var. acutifolius clusters (III and IV) indicated with (cv) and (t), respectively. Further information on accessions found in Table 1.

View larger version (18K): [in a new window]   Fig. 4. Multiple correspondence analysis for the AFLP primer combinations (E-AAG/M-CTT and E-ACC/M-CTA) separately and combined, showing the relationship between Phaseolus vulgaris, P. v; P. lunatus, P.l.; P. glabelus, P. g.; cultivated P. acutifolius, P. a. (cv); wild P. a. var. acutifolius, P. a. (w); P. acutifolius var. tenuifolius, P. t. (w); and P. parvifolius, P. p (w) accessions.