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Phaseolus beans are distributed worldwide and are cultivated in the tropics, subtropics, and temperate zones. The common bean is the most important grain legume for direct human consumption in the world. The objectives of this study were to isolate microsatellite repeats and to establish their di...


Gaitán Solís, ElianaDuque E., Myriam CristinaEdwards, K.J.Tohme, Joseph M.[Microsatellite repeats in common bean (Phaseolus vulgaris L.) : Isolation, characterization, and cross-species amplification in Phaseolus ssp]Microsatellite repeats in common bean (Phaseolus vulgaris L.) : Isolation, characterization, and cross-species amplification in Phaseolus ssp
Martínez Racines, César PompilioBorrero Correa, Jaime C.Duque E., Myriam CristinaCorrea Victoria, Fernando J.Silva, J.Tohme, Joseph M.[Utilization of new alleles from wild rice species to improve cultivated rice in Latin America]Utilization of new alleles from wild rice species to improve cultivated rice in Latin America

Assembled germplasm has provided breeders with valuable traits for the improvement of common beans. Molecular markers such as phaseolin and isozymes have facilitated understanding of the genus Phaseolus thus enabling breeders to develop more effective strategies. However, there are still gaps in ...


Tohme, Joseph M.[Existing bean variability and breeding activities at CIAT for new genetic combinations]Existing bean variability and breeding activities at CIAT for new genetic combinations
Jarvis, AndyYeaman, SGuarino, LuigiTohme, Joseph M.[The role of geographic analysis in locating, understanding, and using plant genetic diversity]The role of geographic analysis in locating, understanding, and using plant genetic diversity
Martínez Racines, César PompilioTohme, Joseph M.López Gerena, J.Borrero Correa, Jaime C.McCouch, Susan R.Roca, William M.Châtel, M.Guimaraes, Elcio Perpétuo[Estado actual del mejoramiento del arroz mediante la utilización de especies silvestres de arroz en CIAT]Estado actual del mejoramiento del arroz mediante la utilización de especies silvestres de arroz en CIAT

Nuñas are a group of common bean (Phaseolus vulgaris, Fabaceae) varieties, whose grains are consumed after toasting in their original Andean habitats. Nowadays, these varieties are restricted to certain parts of the highlands of Peru and Bolivia. Linguistic, ethnobotanical, and archaeological dat...


Tohme, Joseph M.Toro Chica, OrlandoVargas Daza, JaimeDebouck, Daniel G.[Variability in Andean nuña common beans (Phaseolus vulgaris, Fabaceae)]Variability in Andean nuña common beans (Phaseolus vulgaris, Fabaceae)
Mejía Jimenez, ARoyero Moya, NASaavedra, RSánchez, I.Gallego Sánchez, Gerardo J.Duque E., Myriam CristinaDomínguez Villafane, A.Rosero, ACaicedo, ACabra Martínez, JATohme, Joseph M.[Caracterización molecular y agromorfológica de la variabilidad genética nativa de guanábana (Annona muricata L.) y especies Anonáceas relacionadas: informe técnico final]Caracterización molecular y agromorfológica de la variabilidad genética nativa de guanábana (Annona muricata L.) y especies Anonáceas relacionadas: informe técnico final

The cassava core collection was selected to represent, with minimum repetitiveness, the potential genetic diversity of the crop. The core (630 accessions) was chosen from the base collection (over 5500 accessions) on the basis of diversity of origin (country and geographic), morphology, isozyme p...


Chavarriaga Aguirre, PaulMaya, M.M.Tohme, Joseph M.Duque E., Myriam CristinaIglesias, C.A.Bonierbale, Merideth W.Kresovich, SKochert, G[Using microsatellites, isozymes and AFLPs to evaluate genetic diversity and redundancy in the cassava core collection and to assess the usefulness of DNA-BASED markers to maintain germplasm collections]Using microsatellites, isozymes and AFLPs to evaluate genetic diversity and redundancy in the cassava core collection and to assess the usefulness of DNA-BASED markers to maintain germplasm collections

Restriction fragment analysis was used to determine the variation of chloroplast DNA (cpDNA) among and within different species of Passiflora. Total DNAs of 35 accessions, representing 12 species, were digested with four restriction endonucleases. Southern blots of the restriction digests were th...


Sánchez, I.Angel, F.Grum, M.Duque E., Myriam CristinaLobo Arias, MTohme, Joseph M.Roca, William M.[Variability of chloroplast DNA in the genus Passiflora L.]Variability of chloroplast DNA in the genus Passiflora L.

Estado actual del mejoramiento del arroz mediante la utilización de especies silvestres de arroz en CIAT. Este trabajo presenta el uso de especies silvestres de arroz en la obtención de germoplasma mejorado con mayor potencial de rendimiento y una base genética ampliada. Tres especies silvestres ...


Martínez Racines, César PompilioTohme, Joseph M.López Gerena, J.Borrero Correa, Jaime C.McCouch, Susan R.Roca, William M.Chatel, MGuimaraes, Elcio Perpétuo[Estado actual del mejoramiento del arroz mediante la utilización de especies silvestres de arroz en CIAT]Estado actual del mejoramiento del arroz mediante la utilización de especies silvestres de arroz en CIAT

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