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Journal Article 1997

Autor: Fregene, Martin A. Angel, F. Gómez, R. Rodríguez, F. Chavarriaga Aguirre, Paul Roca, William M. Tohme, Joseph M. Bonierbale, Merideth W.

A genetic linkage map of cassava has been constructed with 132 RFLPs, 30 RAPDs, 3 microsatellites, and 3 isoenzyme markers segregating from the heterozygous female parent of an intraspecific cross. The F1 cross was made between ‘TMS 30572’ and ‘CM?2177-2’, elite cassava cultivars from Nigeria and...

Enlace original: https://cgspace.cgiar.org/handle/10568/42530

Investigación en Agricultura
Enlace permanente
Fregene, Martin A. ,  Angel, F. ,  Gómez, R. ,  Rodríguez, F. ,  Chavarriaga Aguirre, Paul ,  Roca, William M. ,  Tohme, Joseph M. ,  Bonierbale, Merideth W. ,  [A molecular genetic map of cassava (Manihot esculenta Crantz)] ,  A molecular genetic map of cassava (Manihot esculenta Crantz)
Journal Article 1994

Autor: Fregene, Martin A. Vargas, J. Ikea, J. Angel, F. Thome, J. Asiedu, Robert Akoroda, M.O. Roca, W.

Chloroplast DNA (cp) and nuclear ribosomal DNA (rDNA) variation was investigated in 45 accessions of cultivated and wild Manihot species. Ten independent mutations, 8 point mutations and 2 length mutations were identified, using eight restriction enzymes and 12 heterologous cpDNA probes from mung...

Enlace original: https://cgspace.cgiar.org/handle/10568/100894

Investigación en Agricultura
DNA
Enlace permanente
Fregene, Martin A. ,  Vargas, J. ,  Ikea, J. ,  Angel, F. ,  Thome, J. ,  Asiedu, Robert ,  Akoroda, M.O. ,  Roca, W. ,  [Variability of chloroplast DNA and nuclear ribosomal DNA in cassava (Manihot esculenta Crantz) and its wild relatives] ,  Variability of chloroplast DNA and nuclear ribosomal DNA in cassava (Manihot esculenta Crantz) and its wild relatives
Journal Article 1996

Autor: Angel, F. Barney, Victoria E. Tohme, Joseph M. Roca, William M.

Cassava (Manihot esculenta Crantz) germplasm collections are conventionally maintained by continuous vegetative propagation in the field. Tissue culture techniques provide a more convenient way to conserve germplasm. The cassava in vitro gene bank held in trust at CIAT comprises nearly 6000 acces...

Enlace original: https://cgspace.cgiar.org/handle/10568/44129

Investigación en Agricultura
Enlace permanente
Angel, F. ,  Barney, Victoria E. ,  Tohme, Joseph M. ,  Roca, William M. ,  [Stability of cassava plants at the DNA level after retrieval from 10 years of in vitro storage] ,  Stability of cassava plants at the DNA level after retrieval from 10 years of in vitro storage
Journal Article 1999

Autor: Sánchez, I. Angel, F. Grum, M. Duque E., Myriam Cristina Lobo Arias, M Tohme, Joseph M. Roca, William M.

Restriction fragment analysis was used to determine the variation of chloroplast DNA (cpDNA) among and within different species of Passiflora. Total DNAs of 35 accessions, representing 12 species, were digested with four restriction endonucleases. Southern blots of the restriction digests were th...

Enlace original: https://cgspace.cgiar.org/handle/10568/44215

Investigación en Agricultura
DNA
Enlace permanente
Sánchez, I. ,  Angel, F. ,  Grum, M. ,  Duque E., Myriam Cristina ,  Lobo Arias, M ,  Tohme, Joseph M. ,  Roca, William M. ,  [Variability of chloroplast DNA in the genus Passiflora L.] ,  Variability of chloroplast DNA in the genus Passiflora L.
Journal Article 2002

Autor: Rangel, MP Tabares, E Lentini, Z Tohme, Joseph M. Mirkov, E Victoria Kafure, JI Angel, F.

EI síndrome de la hoja amarilla es una enfermedad de la calla de azúcar que fue detectada en Colombia por primera vez en 1998. Cenicaña está tratando de lograr un control eficiente de la enfermedad utilizando diferentes herramientas pertenecientes a diversas áreas como entomología, patología, bio...

Enlace original: https://cgspace.cgiar.org/handle/10568/44394

Investigación en Agricultura
Enlace permanente
Rangel, MP ,  Tabares, E ,  Lentini, Z ,  Tohme, Joseph M. ,  Mirkov, E ,  Victoria Kafure, JI ,  Angel, F. ,  [Transformación de plantas de caña de azúcar susceptibles al síndrome de la hoja amarilla = Transformation of sugar cane plants susceptible to yellow leaf virus] ,  Transformación de plantas de caña de azúcar susceptibles al síndrome de la hoja amarilla = Transformation of sugar cane plants susceptible to yellow leaf virus
Journal Article 2000

Autor: Sarria, RA Torres Castro, Edgar Alonso Angel, F. Chavarriaga Aguirre, Paul Roca, William M.

Transgenic plants of cassava (Manihot esculenta) resistant to the herbicide Basta were obtained through Agrobacterium-mediated transformation. The plants also expressed the uidA gene and two were positive for PCR- and/or Southern-based detection of the nptII gene. Somatic-embryo-derived cotyledon...

Enlace original: https://cgspace.cgiar.org/handle/10568/44199

Investigación en Agricultura
Enlace permanente
Sarria, RA ,  Torres Castro, Edgar Alonso ,  Angel, F. ,  Chavarriaga Aguirre, Paul ,  Roca, William M. ,  [Transgenic plants of casssva (Manihot esculenta) with resistance to basta obtained by Agrobacterium-mediated transformation] ,  Transgenic plants of casssva (Manihot esculenta) with resistance to basta obtained by Agrobacterium-mediated transformation
Journal Article 1998

Autor: Fajardo, Diego Angel, F. Grum, M. Tohme, Joseph M. Lobo Arias, M Roca, William M. Sánchez, I.

Genetic analysis based on Random Amplified Polymorphic DNA (RAPD) was carried out on 52 accessions representing 14 species of the genus Passiflora L. using 50 random 10-mer primers. A dendrogram constructed using the Dice similarity coefficient and the UPGMA algorithm based on 626 reproducible po...

Enlace original: https://cgspace.cgiar.org/handle/10568/42908

Investigación en Agricultura
Enlace permanente
Fajardo, Diego ,  Angel, F. ,  Grum, M. ,  Tohme, Joseph M. ,  Lobo Arias, M ,  Roca, William M. ,  Sánchez, I. ,  [Genetic variation analysis of the genus Passiflora L. using RAPD markers] ,  Genetic variation analysis of the genus Passiflora L. using RAPD markers
Journal Article 2001

Autor: Fregene, Martin A. Okogbenin, Emmanuel Mba, C Angel, F. Suarez, MC Gutiérrez A., Janeth Patricia Chavarriaga Aguirre, Paul Roca, William M. Bonierbale, Merideth W. Tohme, Joseph M.

Breeding goals of yield increases, root quality improvement, and disease resistance in cassava are considerably slowed down by biological characteristics of the crop, which includes a long growth cycle, a heterozygous genetic background and a poor knowledge of the organization of crop diversity. ...

Enlace original: https://cgspace.cgiar.org/handle/10568/42913

Investigación en Agricultura
Enlace permanente
Fregene, Martin A. ,  Okogbenin, Emmanuel ,  Mba, C ,  Angel, F. ,  Suarez, MC ,  Gutiérrez A., Janeth Patricia ,  Chavarriaga Aguirre, Paul ,  Roca, William M. ,  Bonierbale, Merideth W. ,  Tohme, Joseph M. ,  [Genome mapping in cassava improvement: Challenges, achievements and opportunities] ,  Genome mapping in cassava improvement: Challenges, achievements and opportunities

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