Abstract

<p>This article reviews the geographical distribution of wild common and lima beans in the Neotropics, their morphological and ecological attributes, and their biochemical and molecular variation along their ranges. These facts reveal the organization of the genetic diversity into three major gene pools, with one being considered ancestral, and additional subdivisions within the derived ones. The relationships between the ancestral branch and related species are discussed. Colombia appears to he more than a place of contact between gene pools of cultivated materials, but the transit place of the ancestral branches, and a possible place of domestication as well. </p><p> </p><p><strong>Los Fríjoles Colombianos Lima y Común: Puntos de Vista de su Origen y el Significado de su Evolución</strong></p><p>Se presenta una revisión de la distribución geográfica de las formas silvestres del frijol común y del frijol lima en el Neotrópico, de sus características morfológicas y ecológicas, y de la variación bioquímica y molecular a lo largo de esta distribución. Estos hechos muestran que la diversidad genética viene organizada en tres acervos o grupos de genes, uno de ellos siendo ancestral, y con subdivisiones adicionales dentro de los acervos derivados. Se discuten las relaciones filogenéticas entre este ramal ancestral y las especies afines. Más que lugar de contacto entre acervos de materiales cultivados, Colombia aparece como corredor biológico donde transitaron las ramas ancestrales, y como lugar de posible domesticación.</p><p> </p><p> </p>

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