Genetic diversity and ecological distribution ofPhaseolus vulgaris (Fabaceae) in northwestern South America

Debouck, Daniel G.; Toro, Orlando; Paredes, Oscar M.; Johnson, Wendell; Gepts, Paul

doi:10.1007/bf02907356

Cited by 150 publications

(116 citation statements)

References 23 publications

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“…A panel of 102 wild accessions of the common bean was selected to represent the geographical distribution of wild P. vulgaris from northern Mexico to northwestern Argentina. The accessions are representative of the different gene pools of the species: 49 Mesoamerican accessions (Mexico, Central America, and Colombia), 47 Andean accessions (South America), and 6 wild accessions from northern Peru and Ecuador that are characterized by the ancestral type I phaseolin (23,24). The accessions characterized by the type I phaseolin are from few small populations found in restricted geographic areas on the western slope of the Andes.…”

Section: Methodsmentioning

confidence: 99%

Mesoamerican origin of the common bean ( Phaseolus vulgaris L.) is revealed by sequence data

Bitocchi

Nanni

Bellucci

et al. 2012

Proc. Natl. Acad. Sci. U.S.A.

329

299

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Knowledge about the origins and evolution of crop species represents an important prerequisite for efficient conservation and use of existing plant materials. This study was designed to solve the ongoing debate on the origins of the common bean by investigating the nucleotide diversity at five gene loci of a large sample that represents the entire geographical distribution of the wild forms of this species. Our data clearly indicate a Mesoamerican origin of the common bean. They also strongly support the occurrence of a bottleneck during the formation of the Andean gene pool that predates the domestication, which was suggested by recent studies based on multilocus molecular markers. Furthermore, a remarkable result was the genetic structure that was seen for the Mesoamerican accessions, with the identification of four different genetic groups that have different relationships with the sets of wild accessions from the Andes and northern Peru–Ecuador. This finding implies that both of the gene pools from South America originated through different migration events from the Mesoamerican populations that were characteristic of central Mexico

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Section: Methodsmentioning

confidence: 99%

Mesoamerican origin of the common bean ( Phaseolus vulgaris L.) is revealed by sequence data

Bitocchi

Nanni

Bellucci

et al. 2012

Proc. Natl. Acad. Sci. U.S.A.

329

299

View full text Add to dashboard Cite

show abstract

“…Typically, during domestication, important agronomic characters are selected which result in a genome-wide reduction of genetic diversity in the domesticates (Tanksley and McCouch 1997;Eyre-Walker et al 1998;Buckler et al 2001;Diamond 2002;Clark et al 2004;Papa et al 2007, Pozzi et al 2004Otero-Arnaiz et al 2005;Vasemagi et al 2005;Doebley et al 2006;Kilian et al 2007;Zhu et al 2007). Earlier studies in bean using DNA marker, protein and morphological variation, determined that domesticated landraces indeed contain a subset of the variability found in wild beans Debouck et al 1993;Kami et al 1995;Tohme et al 1996;Beebe et al 2001;Chacón et al 2005). Here we observed that the amount of variability/polymorphisms retained is similar to the diversity estimates found in wild types.…”

Section: A Model For Domestication In Common Beanmentioning

confidence: 99%

Investigation of the domestication of common bean (Phaseolus vulgaris) using multilocus sequence data

Mamidi

Rossi

Annam

et al. 2011

Functional Plant Biol.

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Abstract. Multilocus sequence data collected from domesticated and related wild relatives provides a rich source of information on the effect of human selection on the diversity and adaptability of a species to complex environments. To evaluate the domestication history of common bean (Phaseolus vulgaris L.), multilocus sequence data from landraces representing the various races within the Middle American (MA) and Andean gene pools was evaluated. Across 13 loci, nucleotide diversity was similar between landraces and wild germplasm in both gene pools. The diversity data were evaluated using the approximate Bayesian computation approach to test multiple domestication models and estimate population demographic parameters. A model with a single domestication event coupled with bidirectional migration between wild and domesticated genotypes fitted the data better than models consisting of two or three domestication events in each genepool. The effective bottleneck population size was~50% of the base population in each genepool. The bottleneck began~8200 and 8500 years before present and ended at~6300 and~7000 years before present in MA and Andean gene pools respectively. Linkage disequilibrium decayed to a greater extent in the MA genepool. Given the (1) geographical adaptation bottleneck in each wild gene pool, (2) a subsequent domestication bottleneck within each gene pool, (3) differentiation into gene-pool specific races and (4) variable extents of linkage disequilibrium, association mapping experiments for common bean would more appropriately be performed within each genepool.

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“…Three of the between genotypes from the southern range of wild and cultivated common beans in the Andes and would provide a possible explanation for the origin of the race from wild beans that do exist in Argentina but that do not exist in Chile (Santalla et al 2004). This point is important given the lack of evidence for a separate domestication leading to race Chile and the incongruence that this race may have arisen separately even though it has not been associated with specific wild accessions (Debouck et al 1993;Johns et al 1997;Chacón et al 2005). Our results may indicate that race Chile precursors moved from the primary center of origin in Northwestern Argentina across the Andes mountains into temperate latitudes in central Chile, a hypothesis that would be supported by results from Sonnante et al (1994) showing close relationship of race Chile genotypes with Argentine wild accessions.…”

Section: Genetic Diversity and Population Structurementioning

confidence: 99%

“…Introgression between races and between gene pools as well as potentially with wild accessions is the likely explanation for the high diversity observed in the Colombian germplasm. Colombia and northwestern South America generally have been cross-roads (Debouck et al 1993;Beebe et al 1997). An early study by identified S phaseolin along with the CH allele from the wild, and that cultivated genotypes in addition to having S, T and C phaseolin also had a the phaseolin allele B with the presence of this allele suggesting the possibility of additional domestication in this region ).…”

Section: Page 15 Of 34mentioning

confidence: 99%

Microsatellite characterization of Andean races of common bean (Phaseolus vulgaris L.)

et al. 2007

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Genetic diversity and ecological distribution ofPhaseolus vulgaris (Fabaceae) in northwestern South America

Cited by 150 publications

References 23 publications

Mesoamerican origin of the common bean ( Phaseolus vulgaris L.) is revealed by sequence data

Mesoamerican origin of the common bean ( Phaseolus vulgaris L.) is revealed by sequence data

Investigation of the domestication of common bean (Phaseolus vulgaris) using multilocus sequence data

Microsatellite characterization of Andean races of common bean (Phaseolus vulgaris L.)

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