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Guimaraes, Elcio PerpétuoDebouck, Daniel G.Beebe, Stephen E.Pompilio Martínez, CésarHershey, Clair H.Ceballos, H.[Pre-breeding : an alternative to add value to the plant genetic resources]Pre-breeding : an alternative to add value to the plant genetic resources

Hershey, Clair H.[A global conservation strategy for cassava (Manihot esculenta) and wild Manihot species]A global conservation strategy for cassava (Manihot esculenta) and wild Manihot species

Cassava breeders and scientists in related fields from the 3 major cassava-producing continents (America, Africa, and Asia) were brought together for the lst time to discuss the latest advances in cassava breeding research and exchange ideas on future priorities. Most breeding programs now orient...


Hershey, Clair H.[Cassava breeding: A multidisciplinary review: Proceedings of a workshop, held in the Philippines, 4-7, March 1985]Cassava breeding: A multidisciplinary review: Proceedings of a workshop, held in the Philippines, 4-7, March 1985

The main responsibility of CIAT as a curator of the world`s cassava germplasm is to assure long-term conservation at low risk of genetic loss and to facilitate access to genetic variability. The present collection of 5477 accessions is maintained both in the field and in vitro at CIAT headquarter...


Hershey, Clair H.Iglesias, C.A.Iwanaga, MasaruTohme, Joseph M.[Definition of a core collection for cassava]Definition of a core collection for cassava

In large ex situ germplasm collections, such as that maintained at CIAT for cassava, it is common to observe duplicates. The presence of duplicate clones increases the cost of conservation without contributing to representation or the available genetic base for crop improvement. To identify group...


Ocampo Nahar, César H.Angel, F.Jiménez, A.Jaramillo O, GHershey, Clair H.Granados F, EIglesias, C.A.[DNA fingerprinting to confirm possible genetic duplicates in cassava germplasm]DNA fingerprinting to confirm possible genetic duplicates in cassava germplasm
Yan, HLu, LHershey, Clair H.Ceballos, HernanChen, S.Li, K[Cassava mutation breeding: current status and trends]Cassava mutation breeding: current status and trends

Esterase isozymes were chosen for fingerprinting CIAT`s cassava germplasm colleciton, because of (1) their technical repeatability; (2) high polymorphism (i.e., many alleles per locus); and (3) high numner of bands detectable in cassava clones (i.e., at least a few loci are expressed). A total of...


Ocampo Nahar, César H.Hershey, Clair H.Iglesias, C.A.Iwanaga, Masaru[Esterase isozyme fingerprinting of the cassava germplasm collection held at CIAT]Esterase isozyme fingerprinting of the cassava germplasm collection held at CIAT

Genetic studies of two isozyme loci have been carried out in root tips of eight cassava F1 progenies using polyacrylamide gel electrophoresis. Two loci, esterase-1 (East-1), the most distant cationic region, and glutamate oxaloacetate transaminase-1 (Got-1), the most proximal anionic region, were...


Sarria, RAOcampo Nahar, César H.Ramírez, H.Hershey, Clair H.Roca, William M.[Genetics of esterase and glutamate oxaloacetate transaminase isozymes in cassava (Manihot esculenta Crantz)]Genetics of esterase and glutamate oxaloacetate transaminase isozymes in cassava (Manihot esculenta Crantz)

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