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Interest in bean genetic resources of Central America has resumed because of disease pressures (e.g., web blight, BGMV) and limitations of current bean varieties. As most of the diversity in landraces has been explored, focus is now on the exploration of wild forms of the primary gene pool and wi...


Araya Villalobos, RodolfoGonzález Ugalde, W.G.Camacho Chacon, FSánchez Trejos, Maria P.Debouck, Daniel G.[Observations on the geographic distribution, ecology and conservation status of several phaseolus bean species in Costa Rica]Observations on the geographic distribution, ecology and conservation status of several phaseolus bean species in Costa Rica

The wild common bean (Phaseolus vulgaris) is widely but discontinuously distributed from northern Mexico to northern Argentina on both sides of the Isthmus of Panama. Little is known on how the species has reached its current disjunct distribution. In this research, chloroplast DNA polymorphisms ...


Chacón Sánchez, María I.Pickersgill, BDebouck, Daniel G.Arias, J.S.[Phylogeographic analysis of the chloroplast DNA variation in wild common bean (Phaseolus vulgaris L.) in the Americas]Phylogeographic analysis of the chloroplast DNA variation in wild common bean (Phaseolus vulgaris L.) in the Americas

A new species of Phaseolus (Legumi nosae, Phaseolinae) has been found in the montane forests of the Sierra de Talamanca in eastern Costa Rica, where it appears endemic. Distinctive traits include: radicant roots, purplish red internodes, veins of leaflets, primary bracts, inner face of stan dard,...


Torres González, Alba MarinaToro Chica, OrlandoDebouck, Daniel G.[Phaseolus talamancensis, a new wild bean species (leguminosae, phaseoline) from montane forests of eastern Costa Rica]Phaseolus talamancensis, a new wild bean species (leguminosae, phaseoline) from montane forests of eastern Costa Rica

The genus Phaseolus includes important cultivated species as well as wild species with diverse ecological adaptations. Characterization of the ecological adaptations of the wild species would be useful for improved understanding, conservation, and utilization of these genetic resources. Salinity ...


Bayuelo Jiménez, Jeannette SofiaDebouck, Daniel G.Lynch, Jonathan P.[Salinity tolerance in Phaseolus species during early vegetative growth]Salinity tolerance in Phaseolus species during early vegetative growth

Advanced backcross QTL analysis was used to identify quantitative trait loci (QTL) for agronomic performance in a population of BC2F3:5 introgression lines created from the cross of a Colombian large red-seeded commercial cultivar, ICA Cerinza, and a wild common bean accession, G24404. A total of...


Blair, Matthew W.Iriarte Solórzano, G.A.Beebe, Stephen E.[QTL analysis of yield traits in an advanced backcross population derived from a cultivated Andean x wild common bean (Phaseolus vulgaris L.) cross]QTL analysis of yield traits in an advanced backcross population derived from a cultivated Andean x wild common bean (Phaseolus vulgaris L.) cross

The conservation status of wild Arachis spp. is not well characterized for its maintenance and possible future exploitation for the improvement of cultivated peanut, Arachis hypogaea L. Our objectives were to use 2175 georeferenced observations of wild peanut (Arachis spp.) to assess the conserva...


Jarvis, AndyFerguson, Morag E.Williams, D.E.Guarino, LuigiJones, Peter G.Stalker, H.T.Valls, JFMPittman, RNSimpson, CEBramel-Cox, P.J.[Biogeography of wild Arachis: Assessing conservation status and setting future priorities]Biogeography of wild Arachis: Assessing conservation status and setting future priorities

This paper presents an effective method for prioritizing areas within a country for acquisition of germplasm of a crop gene pool for ex situ conservation. The method was applied to the rare wild pepper species, Capsicum flexuosum Sendtn., in south-east Paraguay. A model to prioritize areas for co...


Jarvis, AndyWilliams, KGuarino, LuigiCaballero, PJMottram, G[Use of GIS for optimizing a collecting mission for a rare wild pepper (Capsicum flexuosum Sendtn.) in Paraguay]Use of GIS for optimizing a collecting mission for a rare wild pepper (Capsicum flexuosum Sendtn.) in Paraguay
Rau, D.Rodríguez, M.Rapposelli, E.Murgia, M.L.Papa, R.Brown, A.H.D.Attene, G.[Spatial genetic structure in wild cardoon, the ancestor of cultivated globe artichoke: Limited gene flow, fragmentation and population history]Spatial genetic structure in wild cardoon, the ancestor of cultivated globe artichoke: Limited gene flow, fragmentation and population history

Background: The wild relatives of crops represent a major source of valuable traits for crop improvement. These resources are threatened by habitat destruction, land use changes, and other factors, requiring their urgent collection and long-term availability for research and breeding from ex situ...


Ramírez Villegas, JuliánKhoury, Colin K.Jarvis, AndyDebouck, Daniel G.Guarino, Luigi[A gap analysis methodology for collecting crop genepools: a case study with Phaseolus Beans]A gap analysis methodology for collecting crop genepools: a case study with Phaseolus Beans
Khoury, Colin K.Dempewolf, HannesCastañeda-Álvarez, Nora P.[Wild relatives: as rich sources of genetic diversity, the progenitors and kin of today’s food crops hold great promise for improving production in agriculture’s challenging future]Wild relatives: as rich sources of genetic diversity, the progenitors and kin of today’s food crops hold great promise for improving production in agriculture’s challenging future

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