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Beans (Phaseolus spp.) – model food legumes
An international consortium called `Phaseomics' is formed to establish the necessary framework of knowledge and materials that will result in disease-resistant, stress-tolerant, high-quality protein and high-yielding beans, which will be instrumental in improving living conditions in deprived regions of Africa and the Americas.
A reference genome for common bean and genome-wide analysis of dual domestications
2 independent domestications from genetic pools that diverged before human colonization are confirmed and a set of genes linked with increased leaf and seed size are identified and combined with quantitative trait locus data from Mesoamerican cultivars.
Races of common bean (Phaseolus vulgaris, Fabaceae)
Multivariate statistical analyses of morphological, agronomic, and molecular data, as well as other available information on Latin American landraces representing various geographical and ecological regions of their primary centers of domestications in the Americas, reveal the existence of two major groups of germplasm: Middle American and Andean South American, which could be further divided into six races.
Development of a genome-wide anchored microsatellite map for common bean (Phaseolus vulgaris L.)
A total of 150 microsatellite markers developed for common bean were tested for parental polymorphism and used to determine the positions of 100 genetic loci on an integrated genetic map of the species, finding gene-coding microsatellites proved to be less polymorphic than anonymous genomic microSatellites between the parents of two inter-genepool crosses.
Structure of genetic diversity in the two major gene pools of common bean (Phaseolus vulgaris L., Fabaceae)
The Andean domesticated race Nueva Granada had the highest FST value and widest geographic distribution compared to other domesticated races, suggesting a very recent origin or a selection event, presumably associated with a determinate growth habit, which predominates in this race.
Phaseolin-protein Variability in Wild Forms and Landraces of the Common Bean(Phaseolus vulgaris): Evidence for Multiple Centers of Domestication
The authors' data favor 2 primary areas of domestication, one in Middle America leading to small-seeded cultivars with ‘S’ phaseolin patterns and the other in the Andes giving rise to large-seeding cultivarsWith ‘T’ (and possibly ‘C,’ ‘H,” and ‘A’) phaseolinpatterns.
Genetic Control of the Domestication Syndrome in Common Bean
The results suggest that domestication of common bean could have proceeded rapidly and that evolution can proceed through changes involving a few genes with large effect rather than through a gradual accumulation of changes coded by changes with small effects, and that adaptation to rapidly changing environmental conditions may involve genes withLarge phenotypic effects.
Integration of simple sequence repeat (SSR) markers into a molecular linkage map of common bean (Phaseolus vulgaris L.).
The first successful assignment of 15 microsatellite or simple sequence repeat (SSR) markers to the Phaseolus vulgaris molecular linkage map is reported, indicating a widespread distribution throughout the bean genome.
Genetic Diversity in Cultivated Common Bean: I. Allozymes
Confirmation that cultivated common bean (Phaseolus vulgaris L.) resulted from multiple domestications in Mesoamerica and in Andean South America was sought by analyzing patterns of diversity at nine polymorphic allozyme loci, all unlinked to the phaseolin locus.
Crop Domestication as a Long‐Term Selection Experiment
- P. Gepts
- 24 June 2010