An estimated 60% of common bean (Phaseolus vulgaris L.) production worldwide is at risk of drought. A breeding program was developed at the International Center of Tropical Agriculture (CIAT) to create drought resistant breeding lines with varietal potential in the small red, small black, cream (...
Beebe, Stephen E.
,
Rao, Idupulapati M.
,
Cajiao V., César Hernando
,
Grajales, Miguel A.
,
[Selection for drought resistance in common bean also improves yield in phosphorus limited and favorable environments]
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Selection for drought resistance in common bean also improves yield in phosphorus limited and favorable environments
The relationship between root-hair growth, acid exudation and phosphorus (P) uptake as well as the quantitative trait loci (QTLs) associated with these traits were determined for a recombinant inbred line (RIL) population derived from the cross of two contrasting common bean (Phaseolus vulgaris L...
Yan, X
,
Liao, H
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Beebe, Stephen E.
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Blair, Matthew W.
,
Lynch, Jonathan P.
,
[QTL mapping of root hair and acid exudation traits and their relationship to phosphorus uptake in common bean]
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QTL mapping of root hair and acid exudation traits and their relationship to phosphorus uptake in common bean
This study tested the hypothesis that purebred Boran (Bos indicus) cows and crossbreds of Boran and Holstein respond differently to long-term changes of feeding level in nutrient partitioning to milk and body fat stores. A total of 27 cows of these two genotypes were subjected either to a low or ...
Jenet, A.
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Fernández Rivera, S.
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Tegegne, Azage
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Wettstein, H.R.
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Senn, M.
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Saurer, M.
,
Langhans, W.
,
Kreuzer, M.
,
[Evidence for different nutrient partitioning in Boran (Bos indicus) and Boran x Holstein cows when re-allocated from low to high or from high to low feeding level]
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Evidence for different nutrient partitioning in Boran (Bos indicus) and Boran x Holstein cows when re-allocated from low to high or from high to low feeding level
To optimize designs to implement marker-assisted introgression programs aiming to introgress three unlinked quantitative trait loci (QTL), the present paper studies different alternatives versus a traditional backcross or intercross phase. Four alternative backcross strategies appear to be more a...
A numerical classification problem encountered by breeders and gene-bank curators is how to partition the original heterogeneous population of genotypes into non-overlapping homogeneous subpopulations. The measure of distance that may be defined depends on the type of variables measured (i.e., co...
Franco, J.
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Crossa, J.
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Desphande, S.
,
[Hierarchical multiple-factor analysis for classifying genotypes based on phenotypic and genetic data]
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Hierarchical multiple-factor analysis for classifying genotypes based on phenotypic and genetic data
Extra-early maize (Zea mays L) tolerant to low-N and drought could stabilize yields in sub-Saharan Africa. Studies were conducted under drought and low-N conditions in Nigeria for three years to determine the potential of 90 extra-early inbreds for hybrid production and evaluate the performance o...
Badu-Apraku, B.
,
Fakorede, M.A.B.
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Oyekunle M
,
Akinwale, R.
,
[Selection of extra-early maize inbreds under low N and drought at flowering and grain-filling for hybrid production]
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Selection of extra-early maize inbreds under low N and drought at flowering and grain-filling for hybrid production
Rao, Idupulapati M.
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Miles, John W.
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García, R.
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Ricaurte Oyola, José Jaumer
,
[Selección de híbridos de Brachiaria con resistencia al aluminio]
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Selección de híbridos de Brachiaria con resistencia al aluminio
Understanding the distribution of genetic diversity within and among individuals, populations, species and gene pools is crucial for the efficient management of germplasm collections. Molecular markers are playing an increasing role in germplasm characterization, yet their broad application is li...
Xia, L
,
Peng, K
,
Yang, S
,
Wenzl, Peter
,
Vicente, M.C. de
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Fregene, Martin A.
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Kilian, A
,
[DArT for high-throughput genotyping of cassava (Manihot esculenta) and its wild relatives]
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DArT for high-throughput genotyping of cassava (Manihot esculenta) and its wild relatives
The initial response of plants to aluminium (Al) is an inhibition of root elongation. In the present study, short and medium-term effects of Al treatment (20??M) on root growth and Al accumulation of two common bean (Phaseolus vulgaris L.) genotypes, VAX-1 (Al-sensitive) and Quimbaya (Al-resistan...
Rangel Becerra, AF
,
Rao, Idupulapati M.
,
Horst, Walter J.
,
[Spatial aluminium sensitivity of root apices of two common bean (Phaseolus vulgaris L.) genotypes with contrasting aluminium resistance]
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Spatial aluminium sensitivity of root apices of two common bean (Phaseolus vulgaris L.) genotypes with contrasting aluminium resistance
Many parasite species are known to show high levels of genetic diversity, yet the consequences of this diversity for host-parasite interactions are not well understood. Variation in phenotypic traits such as growth rates and the ability to form transmission stages are raw material for natural a...
Taylor, L.H.
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Katzer, F.
,
Shiels, B.R.
,
Welburn, S.C.
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[Genetic and phenotypic analysis of Tunisian Theileria annulata clones]
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Genetic and phenotypic analysis of Tunisian Theileria annulata clones