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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

The genus Pantoea forms a complex of more than 25 species, among which several cause diseases of several crop plants, including rice. Notably, strains of Pantoea ananatis and Pantoea stewartii have been found to cause bacterial leaf blight of rice in Togo and Benin, while other authors have obser...


Kini, K.Agnimonhan, R.Dossa, R.Silué, D.Koebnik, R.[A diagnostic multiplex PCR scheme for identification of plant-associated bacteria of the genus Pantoea.]A diagnostic multiplex PCR scheme for identification of plant-associated bacteria of the genus Pantoea.

The genetic structure of rice blast pathogen populations was studied using 149 and 107 monoconidial isolates from Los Palacios and Sur del Jíbaro rice production locations in the western and central regions of Cuba, respectively. These isolates were collected from 35 rice genotypes and total DNA ...


Fuentes, JLCorrea Victoria, Fernando J.Escobar, F.Mora, LDuque E., Myriam CristinaDeus, J.E.Cornide, MT[Genetic diversity analysis of the rice blast pathogen population of two locations in Cuba]Genetic diversity analysis of the rice blast pathogen population of two locations in Cuba

Tropical soils are particularly vulnerable to fertility losses due to their low capacity to retain organic matter and mineral nutrients. This urges the development of new agricultural practices to manage mineral nutrients and organic matter in a more sustainable way while relying less on fertiliz...


Noguera, DLaossi, KRLavelle, Patrick M.Cruz de Carvalho, M.H.Asakawa, N.Botero, CésarBarot, S[Amplifying the benefits of agroecology by using the right cultivars]Amplifying the benefits of agroecology by using the right cultivars

Rain-fed rice production in sub-Saharan Africa is often hampered by parasitic weeds. This study assessed farmers’ awareness, use, preference and adoption criteria of parasitic weed management practices in rain-fed rice production environments in Tanzania. Surveys and workshops were organized in t...


Tippe, D.E.Rodenburg, J.Schut, MarcAst, A. vanKayeke, J.Bastiaans, L.[Farmers’ knowledge, use and preferences of parasitic weed management strategies in rain-fed rice production systems]Farmers’ knowledge, use and preferences of parasitic weed management strategies in rain-fed rice production systems

Microsatellite polymorphism was studied in a sample of 39 traditional rice (Oryza sativa L.) varieties and 11 improved varieties widely planted in Cuba. The study was aimed at assessing the extent of genetic variation in traditional and improved varieties and to establish their genetic relationsh...


Álvarez, A.Fuentes, JLPuldon, VGómez, P.J.Mora, LDuque E., Myriam CristinaGallego Sánchez, Gerardo J.Tohme, Joseph M.[Genetic diversity analysis of Cuban traditional rice (Oryza sativa L.) varieties based on microsatellite markers]Genetic diversity analysis of Cuban traditional rice (Oryza sativa L.) varieties based on microsatellite markers

Four multiplex panels of fluorescent-labeled rice microsatellite markers were designed to survey allelic diversity at a total of 27 simple sequence repeat loci. Automated fragment detection, size calling and binning were used to identify the microsatellite alleles. The panels were tested on 72 ac...


Blair, Matthew W.Hedetale, VMcCouch, Susan R.[Fluorescent-labeled microsatellite panels useful for detecting allelic diversity in cultivated rice (Oryza sativa L.)]Fluorescent-labeled microsatellite panels useful for detecting allelic diversity in cultivated rice (Oryza sativa L.)

Rice hoja blanca virus (RHBV) is a major virus disease of economic importance affecting rice in northern South America, Central America and the Caribbean. This is the first report of transgenic resistance to RHBV and the transformation of an indica rice variety from Latin America. Rice transforme...


Lentini, ZLozano Potes, ITabares, EFory Sánchez, L.F.Domínguez, J.Cuervo Ibáñez, MaritzaCalvert, Lee A.[Expression and inheritance of hypersensitive resistance to rice hoja blanca virus mediated by the viral nucleocapsid protein gene in transgenic rice]Expression and inheritance of hypersensitive resistance to rice hoja blanca virus mediated by the viral nucleocapsid protein gene in transgenic rice

The Brachiaria hybrid cv. Mulato is well adapted to low-fertility acid soils deficient in phosphorus (P). To study the grassy forage’s mechanisms for tolerating low P supply, we compared it with rice (Oryza sativa L. cv. Kitaake). We tested by using nutrient solution cultures, and quantified the ...


Nanamori, MShinano, TWasaki, JYamamura, TRao, Idupulapati M.Osaki, M[Low phosphorus tolerance mechanisms: Phosphorus recycling and photosynthate partitioning in the tropical forage grass, Brachiaria hybrid cultivar mulato compared with rice]Low phosphorus tolerance mechanisms: Phosphorus recycling and photosynthate partitioning in the tropical forage grass, Brachiaria hybrid cultivar mulato compared with rice

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