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Congruity and recurrent backcross interspecific hybrids between common bean (Phaseolus vulgaris L.) and tepary bean (P. acutifolius A. Gray) were compared for the amount of introgression occurring between genomes by amplified fragment length polymorphism (AFLP) markers. A total of 60 genotypes we...
Plant disease resistance genes (R genes) show significant similarity amongst themselves in terms of both their DNA sequences and structural motifs present in their protein products. Oligonucleotide primers designed from NBS (Nucleotide Binding Site) domains encoded by several R-genes have been us...
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...
Se estableció una colección de 45 aislamientos de Sphaerotheca pannosa var. rosae a partir de plantas de rosa afectadas con mildeo polvoso, enfermedad causada por este patógeno. Para efectos de este estudio, se hizo una evaluación molecular previa mediante RAPD a todos los aislamientos y se selec...
Se estableció en Ecuador y Colombia la distribución de las especies de moscas blancas más importantes que están afectando cultivos semestrales. Se identificaron, mediante RAPD con el cebador OPA-04, la mosca blanca de los invernaderos Trialeudores vaporariorum (Westwood) y los biotipos A y B de B...
Trypanosomosis remains one of the biggest impediments to the Development of the livestock industry in sub-Saharan Africa while it is likely that a vaccine for this disease could be found in the future, none is presently available. Mean-while different strategies are being followed to control this...
A preliminary linkage map of cassava (Manihot esculenta Crantz) to increase the efficiency of introgression of specific chromosomes or chromosome fragments from exotic cassava germplasm into various genetic backgrounds and localization of genes of interest in cassava improvement schemes has been ...
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