Common bean (Phaseolus vulgaris L.) was introduced into the Iberian Paninsula (Spain and Portugal), mainly from Central America around 1506 and from the southern Andes after 1532, through sailors and traders, who brought the nicely colored, easily transportable seeds with them as a curiosity. The principal ciltivated bean types in this area are cultivars of Andean origin and belonging to the white kidney, Canellini, marrow, "Favada", large cranberry, cranberry, red pinto and "Canela" market classes. The level of genetic variation has not eroded since the introduction of common bean from the American centres of domestication to the Iberian Peninsula. Instead, obvious signs of introgression between the two gene pools were observed, mainly among white-seeded genotypes (Santalla et al., 2002). A preliminary study of the productivity potential and breeding value of great northern recombinant genotypes is presented in this work.
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