Despite the worldwide importance of cultivated cassava (M. esculenta Crantz) its origin and taxonomic relationships with other species in the genus have not been clearly established. We evaluated a representative sample of the crop’s diversity and six wild taxa with AFLPs to estimate genetic rela...
Roa, AC
,
Maya, M.M.
,
Duque E., Myriam Cristina
,
Tohme, Joseph M.
,
Allem, AC
,
Bonierbale, Merideth W.
,
[AFLP analysis of relationships among cassava and other Manihot species]
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AFLP analysis of relationships among cassava and other Manihot species
Nienhuis, James
,
Skroch, Paul W.
,
Beebe, Stephen E.
,
Tohme, Joseph M.
,
Pedraza García, Fabio
,
[Comparison of genetic diversity between random samples from core and reserve collections of Phaseolus vulgaris L]
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Comparison of genetic diversity between random samples from core and reserve collections of Phaseolus vulgaris L
Tohme, Joseph M.
,
Beebe, Stephen E.
,
González, O.
,
Duque E., Myriam Cristina
,
[AFLP analysis of the wild Phaseolus vulgaris core collection]
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AFLP analysis of the wild Phaseolus vulgaris core collection
Beebe, Stephen E.
,
Tohme, Joseph M.
,
Nienhuis, James
,
Pedraza García, Fabio
,
Rengifo, J
,
Tovar Luque, E
,
Islam, A.
,
[Studies in Phaseolus germplasm diversity: a review of work at CIAT]
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Studies in Phaseolus germplasm diversity: a review of work at CIAT
Single nucleotide polymorphism (SNP) markers are by far the most common form of DNA polymorphism in a genome. The objectives of this study were to discover SNPs in common bean (Phaseolus vulgaris L.) by comparing sequences from coding and noncoding regions obtained from the GenBank and genomic DN...
Gaitán Solís, Eliana
,
Choi, I.Y.
,
Quigley, C
,
Cregan, P.B.
,
Tohme, Joseph M.
,
[Single nucleotide polymorphisms in common bean : Their discovery and genotyping using a multiplex detection system]
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Single nucleotide polymorphisms in common bean : Their discovery and genotyping using a multiplex detection system
No wild Phaseolus bean germplasm is currently available from seed banks for Ecuador. Because of the decisive importance of the wild forms in evolutionary studies of the bean crops, and given the key geographical situation of that country in the northern Andes, a joint exploration was recently car...
Debouck, Daniel G.
,
Castillo T., R.
,
Tohme, Joseph M.
,
[Observations on little-known Phaseolus germplasm of Ecuador]
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Observations on little-known Phaseolus germplasm of Ecuador
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, Orlando
,
Vargas Daza, Jaime
,
Debouck, Daniel G.
,
[Variability in Andean nuña common beans (Phaseolus vulgaris, Fabaceae)]
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Variability in Andean nuña common beans (Phaseolus vulgaris, Fabaceae)
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, Paul
,
Maya, M.M.
,
Tohme, Joseph M.
,
Duque E., Myriam Cristina
,
Iglesias, C.A.
,
Bonierbale, Merideth W.
,
Kresovich, S
,
Kochert, 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]
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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