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Studies of diversity permit conclusions about the genetic structure of species. Systematically developed core collections are a particularly good tool for such purposes. The objective of this study was to evaluate the genetic structure between and within gene pools of a core collection of wild Ph...


Tohme, Joseph M.González, Delkin OrlandoBeebe, Stephen E.Duque E., Myriam Cristina[AFLP Analysis of Gene Pools for a Wild Bean Core Collection]AFLP Analysis of Gene Pools for a Wild Bean Core Collection

We describe a method for applying geographical information systems (GIS) to exploring biodiversity in the wild relatives of crop species and illustrate its application to the wild common bean (Phaseolus vulgaris L.). We use the latitude, longitude and altitude of the location of origin of each ac...


Jones, Peter G.Beebe, Stephen E.Tohme, Joseph M.Galwey, Nicholas W.[The Use of Geographic Information Systems in Biodiversity and Conservation.]The Use of Geographic Information Systems in Biodiversity and Conservation.

Seedling root phenotypes may have important impacts on fitness and are more easily measured than mature root phenotypes. We phenotyped the roots of 577 genotypes of common bean (Phaseolus vulgaris), representing the bulk of the genetic diversity for recent cultivars and landraces in this species....


Strock, Christopher F.Burridge, JamesMassas, Anica S.F.Beaver, James S.Beebe, Stephen E.Camilo, Samuel A.Fourie, DeidreJochua, CelestinaMiguel, MagalhaesMiklas, Phillip N.Mndolwa, EninkaNchimbi-Msolla, SusanPolania, JosePorch, Timothy G.Rosas, Juan CarlosTrapp, Jennifer J.Lynch, Jonathan P.[Seedling root architecture and its relationship with seed yield across diverse environments in Phaseolus vulgaris]Seedling root architecture and its relationship with seed yield across diverse environments in Phaseolus vulgaris

Interspecific lines obtained from crosses between common bean (Phaseolus vulgaris L.) and other species from its secondary gene pool have a tendency for excessive vegetative growth and low grain yield. Contrariwise, drought-adapted common bean lines have been observed to produce high yields despi...


Klaedtke, SMCajiao V., César HernandoGrajales, Miguel A.Polanía Perdomo, José A.Borrero, GonzaloGuerrero, ARivera, M.Rao, Idupulapati M.Beebe, Stephen E.León, J.[Photosynthate remobilization capacity from drought-adapted common bean (Phaseolus vulgaris L.) lines can improve yield potential of interspecific populations within the secondary gene pool]Photosynthate remobilization capacity from drought-adapted common bean (Phaseolus vulgaris L.) lines can improve yield potential of interspecific populations within the secondary gene pool

Accurate assessment of crop water uptake (WU) and water use efficiency (WUE) is not easy under field conditions. Carbon isotope discrimination (Δ13C) has been used as a surrogate of WUE to examine crop yield responses to drought and its relationship with WU and WUE. A 2-yr study was conducted (i)...


Sanz-Saez, AlvaroMaw, Michael J.W.Polania, Jose A.Rao, Idupulapati M.Beebe, Stephen E.Fritschi, Felix B.[Using Carbon Isotope Discrimination to Assess Genotypic Differences in Drought Resistance of Parental Lines of Common Bean]Using Carbon Isotope Discrimination to Assess Genotypic Differences in Drought Resistance of Parental Lines of Common Bean
Blair, Matthew W.Pedraza García, FabioBuendía Castellanos, Hector F.Gaitán Solís, ElianaBeebe, Stephen E.Gepts, Paul L.Tohme, Joseph M.[Development of a genome-wide anchored microsatellite map for common bean (Phaseolus vulgaris L.)]Development of a genome-wide anchored microsatellite map for common bean (Phaseolus vulgaris L.)
Rosas Sotomayor, Juan CarlosBeaver, James S.Beebe, Stephen E.[Names of common bean varieties released in Central America and the Caribbean]Names of common bean varieties released in Central America and the Caribbean
Rodríguez Miranda, O.Faure Alvarez, BenitoBenítez Gonzáles, RBeebe, Stephen E.Quintero, C.[Identificación de genotipos resistentes al virus de mosaico dorado amarillo del frijol (BGYMV) mediante el uso del marcador molecular bgm-1]Identificación de genotipos resistentes al virus de mosaico dorado amarillo del frijol (BGYMV) mediante el uso del marcador molecular bgm-1
Beebe, Stephen E.Makunde, G.S.Blair, Matthew W.Chirwa, RowlandLungu, D[Inheritance of drought tolerance traits in andean x andean and andean x Mesoamerican F2 populations]Inheritance of drought tolerance traits in andean x andean and andean x Mesoamerican F2 populations

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