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, G
,
Hershey, Clair H.
,
Granados F, E
,
Iglesias, C.A.
,
[DNA fingerprinting to confirm possible genetic duplicates in cassava germplasm]
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DNA fingerprinting to confirm possible genetic duplicates in cassava germplasm
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]
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Esterase isozyme fingerprinting of the cassava germplasm collection held at CIAT
A description is given of CIAT's cassava breeding program, designed to exploit the adaptation of cassava to various physical and biological stress factors by selection over a range of moderate to high stress environments. The selection environments are described and a decentralized breeding metho...
Hershey, Clair H.
,
[Breeding cassava for adaptation to stress conditions: development of a methodology]
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Breeding cassava for adaptation to stress conditions: development of a methodology