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Summary: Xanthomonas axonopodis pv. manihotis (Xam) is the causative agent of cassava bacterial blight (CBB), a worldwide disease that is particularly destructive in South America and Africa. CBB is controlled essentially through the use of resistant varieties. To develop an appropriate disease m...


Restrepo, S.Duque E., Myriam CristinaTohme, Joseph M.Verdier, Valérie[AFLP fingerprinting : An efficient technique for detecting genetic variation of Xanthomonas axonopodis pv. manihotis]AFLP fingerprinting : An efficient technique for detecting genetic variation of Xanthomonas axonopodis pv. manihotis

Despite the worldwide importance of cultivated cassava (M. esculenta Crantz) its origin and taxonomic relationships with other species in the genus have not been clearly established. We evaluated a representative sample of the crop’s diversity and six wild taxa with AFLPs to estimate genetic rela...


Roa, ACMaya, M.M.Duque E., Myriam CristinaTohme, Joseph M.Allem, ACBonierbale, Merideth W.[AFLP analysis of relationships among cassava and other Manihot species]AFLP analysis of relationships among cassava and other Manihot species

Cultivars of common bean (Phaseolus vulgaris L.) capable of yielding well at low levels of native or added phosphorus (P) are highly desirable in many tropical production systems. The objective of the present study was to identify geographical regions which might be sources of such genotypes. A t...


Beebe, Stephen E.Lynch, JGalwey, Nicholas W.Tohme, Joseph M.Ochoa, IE[A geographical approach to identify phosphorus-efficient genotypes among landraces and wild ancestors of common bean]A geographical approach to identify phosphorus-efficient genotypes among landraces and wild ancestors of common bean

Using AFLPs, 71 peppers (Capsicum) accessions from the species C. chinense Jacq., C. baccatum L., C. annuum L. and C. frutescens L. from indigenous communities of the Amazon Department (Colombia) were studied to assess the genetic diversity of the collections, and delineate species gene groups. T...


Toquica, SPRodríguez, F.Martínez, E.Duque E., Myriam CristinaTohme, Joseph M.[Molecular characterization by AFLPs of Capsicum germplasm from the Amazon department in Colombia, characterization by AFLPs of Capsicum]Molecular characterization by AFLPs of Capsicum germplasm from the Amazon department in Colombia, characterization by AFLPs of Capsicum
Moreta, DaniloArango, JacoboSotelo Cabrera, Mauricio EfrenVergara, DanielRincón, ÁlvaroIshitani, ManabuCastro, AracelyMiles, John W.Peters, MichaelTohme, Joseph M.Subbaraoa, Guntur V.Rao, Idupulapati M.[Biological nitrification inhibition (BNI) in Brachiaria pastures: a novel strategy to improve eco-efficiency of crop-livestock systems and to mitigate climate change]Biological nitrification inhibition (BNI) in Brachiaria pastures: a novel strategy to improve eco-efficiency of crop-livestock systems and to mitigate climate change
Duitama, JorgeSilva, AlexanderSanabria, YamidCruz, Daniel FelipeQuintero, ConstanzaBallen, CarolinaLorieux, MathiasScheffler, BrianFarmer, AndrewTorres Castro, Edgar AlonsoOard, JamesTohme, Joseph M.[Whole genome sequencing of elite rice cultivars as a comprehensive information resource for marker assisted selection]Whole genome sequencing of elite rice cultivars as a comprehensive information resource for marker assisted selection

This study evaluated P. edulis f. edulis intraspecific variation at DNA level using AFLPs and SSRs. About 60 specimens were collected from Colombian commercial plantations in the departments of Antioquia, Boyacá, Cundinamarca, Huila, Quindío and Tolima. Ten specimens were also included from Corpo...


Ortiz, Diana CarolinaBohórquez Cháux, AdrianaDuque E., Myriam CristinaTohme, Joseph M.Cuéllar, DavidMosquera Vasquez, Teresa[Evaluating purple passion fruit (Passifloraedulis Sims f. edulis) genetic variability in individuals from commercial plantations in Colombia]Evaluating purple passion fruit (Passifloraedulis Sims f. edulis) genetic variability in individuals from commercial plantations in Colombia
Nienhuis, JamesSkroch, Paul W.Beebe, Stephen E.Tohme, Joseph M.Pedraza García, Fabio[Comparison of genetic diversity between random samples from core and reserve collections of Phaseolus vulgaris L]Comparison of genetic diversity between random samples from core and reserve collections of Phaseolus vulgaris L
Beebe, Stephen E.Tohme, Joseph M.Nienhuis, JamesPedraza García, FabioRengifo, JTovar Luque, EIslam, A.[Studies in Phaseolus germplasm diversity: a review of work at CIAT]Studies in Phaseolus germplasm diversity: a review of work at CIAT

More than 60% of common bean production worldwide is derived from cultivars of Middle American origin. Understanding the diversity of these will facilitate their use in genetic improvement. The objective of this study was to analyze a collection of 269 landraces of common bean (Phaseolus vulgaris...


Beebe, Stephen E.Skroch, PWTohme, Joseph M.Duque E., Myriam CristinaPedraza García, FabioNienhuis, James[Structure of genetic diversity among common bean landraces of middle American origin based on correspondence analysis of RAPD]Structure of genetic diversity among common bean landraces of middle American origin based on correspondence analysis of RAPD

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