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The genetic variable of seven Phaseolus taxa has been evaluated on the basis of molecular data and the results have used to clarify the phyletic relationships between several taxa of the P. coccineus L. complex. Chloroplast DNA (cpDNA) from 33 populations was digested with six restriction endonuc...


Schmit, VéroniqueJardin, Paul duBaudoin, Jean-PierreDebouck, Daniel G.[Use of chloroplast DNA polymorphisms for the phylogenetic study of seven Phaseolus taxa including P. vulgaris and P. coccineus]Use of chloroplast DNA polymorphisms for the phylogenetic study of seven Phaseolus taxa including P. vulgaris and P. coccineus

Seed increase of the 1300 accessions from both the cultivated subspecies (coccineus and polyanthus) and the wild forms of Phaseolus coccineus is being carried out at 2 locations of Colombia. In Popayan (1700 m alt., 18 degrees Celsius mean temp., and 2000 mm annual rainfall), 12 plants of each ac...


Schmit, VéroniqueBaudoin, Jean-Pierre[Seed multiplication and preliminary evaluations of Phaseolus coccineus germplasm collection at C.I.A.T. (Centro Internacional de Agricultura Tropical, Cali, Colombia)]Seed multiplication and preliminary evaluations of Phaseolus coccineus germplasm collection at C.I.A.T. (Centro Internacional de Agricultura Tropical, Cali, Colombia)
International Center for Tropical Agriculture[Broadening the genetic base of common bean, Phaseolus vulgaris, and exploitation of the biodiversity found in the secondary gene pools of P. coccineus and P. polyanthus, through germplasm core collections and interspecific hybridizations]Broadening the genetic base of common bean, Phaseolus vulgaris, and exploitation of the biodiversity found in the secondary gene pools of P. coccineus and P. polyanthus, through germplasm core collections and interspecific hybridizations

The origin of 5 Phaseolus species cultivated in America (P. vulgaris, P. lunatus, P. coccineus, P. acutifolius, and P. polyanthus) is discussed within the context of a broader theory of the origin of this genus, for which 3 centers of origin may be defined: Mesoamerica, the northern and southern ...


Debouck, Daniel G.[Primary diversification of Phaseolus in the Americas: Three centres?]Primary diversification of Phaseolus in the Americas: Three centres?

Different aspects on the history, screening, and domestication effect on the evolution of the bean species are discussed, based on the concept of species domestication. Data are examined on plant systematics and geography, etnological botany, biochemistry, arqueology, and genetics of the crop. Th...


Debouck, Daniel G.[Problematica reciente de la domesticacion del frijol]Problematica reciente de la domesticacion del frijol
International Center for Tropical Agriculture[Interespecific solutions to intractable problems of common bean: broadening the genetic base of common bean, Phaseolus vulgaris, and exploitation of the biodiversity found in secondary gene pools of P. coccineus and P. polyanthus, through germplasm core collections and interspecific hybridizations]Interespecific solutions to intractable problems of common bean: broadening the genetic base of common bean, Phaseolus vulgaris, and exploitation of the biodiversity found in secondary gene pools of P. coccineus and P. polyanthus, through germplasm core collections and interspecific hybridizations

A five days collecting expedition was carried out through the Departments of Cundinamarca and Boyaca (Colombia), corresponding to the dry subtropical forest of the Andean Zone (1500-2000 m.a.s.l.). The germplasm collected includes 40 samples of beans of the genus Phaseolus, 1 sample of Vigna sp, ...


Toro Chica, Orlando[Recolección de germoplasma de frijol Phaseolus spp. L. en la región andina (centro de Colombia), Cundinamarca y Boyacá]Recolección de germoplasma de frijol Phaseolus spp. L. en la región andina (centro de Colombia), Cundinamarca y Boyacá
International Center for Tropical Agriculture[The genetic organization of P. coccineus and P. polyanthus gene pools (CIAT)]The genetic organization of P. coccineus and P. polyanthus gene pools (CIAT)

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