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In Venezuela, pedigree analyses indicate that the rice varieties currently under cultivation are closely related. Effective breeding programs, based on knowledge of the genetic diversity of cultivars, are needed to broaden the genetic bases of rice germplasm in the country. In this study, we used...


Ghneim-Herrera, ThauraPosso Duque, DPérez Almeida, I.Torrealba N., G.T.Pieters, AJMartínez Racines, César PompilioTohme, Joseph M.[Assessment of genetic diversity in Venezuelan rice cultivars using simple sequence repeats markers]Assessment of genetic diversity in Venezuelan rice cultivars using simple sequence repeats markers
Sanabria, YCarabalí, Silvio J.Olaya, Cristian A.Martínez Racines, César PompilioTohme, Joseph M.[Using molecular markers to search for wild introgressions from a relative tetraploid species into Oryza sativa L.]Using molecular markers to search for wild introgressions from a relative tetraploid species into Oryza sativa L.
Aluko, GKMartínez Racines, César PompilioTohme, Joseph M.Castaño Rodríguez, C.Bergman, C.Oard, JH[QTL, multivariate and population structure analyses of agronomic traits in the interspecific cross Oryza sativa x Oryza glaberrima]QTL, multivariate and population structure analyses of agronomic traits in the interspecific cross Oryza sativa x Oryza glaberrima

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

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
Giraldo Pasmín, O.X.Quintero, C.Plata, GRodríguez, F.Borrero Correa, Jaime C.Martínez Racines, César PompilioTohme, Joseph M.[Identificación de marcadores SNPs (polimorfismos de un nucleótido), presentes en genes de la homeostasis de hierro en arroz]Identificación de marcadores SNPs (polimorfismos de un nucleótido), presentes en genes de la homeostasis de hierro en arroz

This paper summarizes results from a decade of collaborative research using advanced backcross (AB) populations to a) identify quantitative trait loci (QTL) associated with improved performance in rice and to b) clone genes underlying key QTLs of interest. We demonstrate that AB-QTL analysis is c...


McCouch, Susan R.Sweeney, MLi, JJiang, H.Thomson, M.Septiningsih, EMEdwards, J.Moncada, PXiao, J.Garris, AJTai, TMartínez Racines, César PompilioTohme, Joseph M.Sugiono, MMcClung, AYuan, L[Through the genetic bottleneck : O. rufipogon as a source of trait-enhancing alleles for O. sativa]Through the genetic bottleneck : O. rufipogon as a source of trait-enhancing alleles for O. sativa

Triana Espinel, MónicaLozano Potes, ICalvert, Lee A.Meneses Carbonell, RMartínez Racines, César Pompilio[Marcadores moleculares asociados con la resistencia a Tagosodes orizicolus]Marcadores moleculares asociados con la resistencia a Tagosodes orizicolus

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