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Manrique Carpintero, Norma ConstanzaEscobar Pérez, Roosevelt H.Tohme, Joseph M.[Ajuste de las condiciones de crioconservación con materiales de yuca recalcitrantes a la congelación]Ajuste de las condiciones de crioconservación con materiales de yuca recalcitrantes a la congelación

A survey of the genetic diversity among the major cuban rice cultivars was conducted using isozyme, RAPD and AFLP markers. Polymorphisms were detected for esterases, peroxidases, alcohol dehydrogenases and polyphenoloxidases systems; 21 RAPD primers and four AFLP primer combinations. Heterozygosi...


Fuentes, JLEscobar, F.Álvarez, A.Gallego Sánchez, Gerardo J.Duque E., Myriam CristinaFerrer, MDeus, J.E.Tohme, Joseph M.[Analyses of genetic diversity in Cuban rice varieties using isozyme, RAPD and AFLP markers]Analyses of genetic diversity in Cuban rice varieties using isozyme, RAPD and AFLP markers

A major constraint to the development of cassava (Manihot esculenta Crantz) as a crop to both farmers and processors is its starchy storage roots' rapid post-harvest deterioration, which can render it unpalatable and unmarketable within 24 72 h. An oxidative burst occurs within 15 min of the root...


Reilly, KGómez Vásquez, RBuschmann, HTohme, Joseph M.Beeching, JR[Oxidative stress responses during cassava post-harvest physiological deterioration]Oxidative stress responses during cassava post-harvest physiological deterioration

A strong postzygotic reproductive barrier separates the recently diverged Asian and African cultivated rice species, Oryza sativa and O. glaberrima. Recently a model of genetic incompatibilities between three adjacent loci: S1A, S1 and S1B (called together the S1 regions) interacting epistaticall...


Guyot, RGaravito, AGavory, FSamain, STohme, Joseph M.Ghesquière, AlainLorieux, M[Patterns of sequence divergence and evolution of the S1 Orthologous regions between Asian and African cultivated rice species]Patterns of sequence divergence and evolution of the S1 Orthologous regions between Asian and African cultivated rice species

Cassava (Manihot esculenta) is an important staple crop, especially in the arid tropics. Because roots of commercial cassava cultivars contain a limited amount of provitamin A carotenoids, both conventional breeding and genetic modification are being applied to increase their production and accum...


Welsch, RArango, JacoboBar, CSalazar, BAl-Babili, S.Beltrán Giraldo, Jorge AlonsoChavarriaga Aguirre, PaulCeballos, H.Tohme, Joseph M.Beyer, Peter[Provitamin A accumulation in Cassava (Manihot esculenta) roots driven by a single nucleotide polymorphism in a phytoene synthase gene[W]]Provitamin A accumulation in Cassava (Manihot esculenta) roots driven by a single nucleotide polymorphism in a phytoene synthase gene[W]

International rice export markets are increasing demands for rapid improvements in grain quality characteristics. The African rice Oryza glaberrima is a new potential source of genes that will enhance the eating, cooking, and milling properties of the rice grain. The objective of this research wa...


Aluko, GKMartínez Racines, César PompilioTohme, Joseph M.Castaño Rodríguez, C.Bergman, C.Oard, JH[QTL mapping of grain quality traits from the interespecific cross Oryza sativa x O. glaberrima]QTL mapping of grain quality traits from the interespecific cross Oryza sativa x O. glaberrima

We evaluated cassava bacterial blight (CBB) infection in an pair-cross population of 150 individuals derived from an intra-specific cross between two non-inbred cassava (Manihot esculenta Crantz) lines. The replicated trials were carried out in the field under high disease pressure over two conse...


Jorge, VFregene, Martin A.Velez, C.M.Duque E., Myriam CristinaTohme, Joseph M.Verdier, Valérie[QTL analysis of field resistance to Xanthomonas axonopodis pv. manihotis in cassava]QTL analysis of field resistance to Xanthomonas axonopodis pv. manihotis in cassava
Beltrán Giraldo, Jorge AlonsoJaimes, HEcheverry, MLadino Franco, YJLópez, D.Duque E., Myriam CristinaChavarriaga Aguirre, PaulTohme, Joseph M.[Quantitative analysis of transgenes in cassava plants using real-time PCR technology]Quantitative analysis of transgenes in cassava plants using real-time PCR technology

An advanced backcross breeding strategy was used to identify quantitative trait loci (QTLs) associated with eight agronomic traits in a BC2F2 population derived from an interspecific cross between Caiapo, an upland Oryza sativa subsp. japonica rice variety from Brazil, and an accession of Oryza r...


Moncada, MPMartínez Racines, César PompilioBorrero Correa, Jaime C.Chatel, MGauch Junior, HGuimaraes, Elcio PerpétuoTohme, Joseph M.McCouch, Susan R.[Quantitative trait loci for yield and yield components in an Oryza sativa x Oryza rufipogon BC2F2 population evaluated in an upland environment]Quantitative trait loci for yield and yield components in an Oryza sativa x Oryza rufipogon BC2F2 population evaluated in an upland environment

Common bean (Phaseolus vulgaris L.) is nodulated by a heterogeneous group of Rhizobium strains. In a search for host plant restriction of nodulation by some of these strains, 50 wild and cultivated bean accessions were evaluated for the length of time taken to form effective nodules with three di...


Kipe-Nolt, Judith A.Montealegre, CMTohme, Joseph M.[Restriction of nodulation by the broad host range Rhizobium tropici strain CIAT899 in wild accessions of Phaseolus vulgaris L.]Restriction of nodulation by the broad host range Rhizobium tropici strain CIAT899 in wild accessions of Phaseolus vulgaris L.

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