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Maciel, Fábio Luís; Gerald, Lee Tseng Sheng; Echeverrigaray, S.

doi:10.1023/a:1017579014961

Cited by 27 publications

(3 citation statements)

References 20 publications

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“…These studies showed that the majority of market classes among domesticated beans had an ‘S’ type, characteristic of the Mesoamerican gene pool, while other classes showed the ‘T’ type, characteristic of the Andean gene pool. Later on, other studies assessed the genetic diversity of common bean landraces from the Southern region of Brazil with RAPD (Maciel et al 2001) and AFLP markers (Maciel et al 2003). The studies of Maciel et al (2001, 2003) confirmed the overall distinction between Andean and Mesoamerican accessions of domesticated P. vulgaris in Brazilian samples.…”

Section: Introductionmentioning

confidence: 99%

“…Later on, other studies assessed the genetic diversity of common bean landraces from the Southern region of Brazil with RAPD (Maciel et al 2001) and AFLP markers (Maciel et al 2003). The studies of Maciel et al (2001, 2003) confirmed the overall distinction between Andean and Mesoamerican accessions of domesticated P. vulgaris in Brazilian samples. However, the distinction between the two major gene pools was not as clear in the study of Maciel et al (2003), in which some of the landraces showed a ‘T’ phaseolin type but clustered in the Mesoamerican group, suggesting some admixture between these gene pools.…”

Section: Introductionmentioning

confidence: 99%

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Microsatellite diversity and genetic structure among common bean (Phaseolus vulgaris L.) landraces in Brazil, a secondary center of diversity

et al. 2010

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Brazil is the largest producer and consumer of common bean (Phaseolus vulgaris L.), which is the most important source of human dietary protein in that country. This study assessed the genetic diversity and the structure of a sample of 279 geo-referenced common bean landraces from Brazil, using molecular markers. Sixty-seven microsatellite markers spread over the 11 linkage groups of the common bean genome, as well as Phaseolin, PvTFL1y, APA and four SCAR markers were used. As expected, the sample showed lower genetic diversity compared to the diversity in the primary center of diversification. Andean and Mesoamerican gene pools were both present but the latter gene pool was four times more frequent than the former. The two gene pools could be clearly distinguished; limited admixture was observed between these groups. The Mesoamerican group consisted of two sub-populations, with a high level of admixture between them leading to a large proportion of stabilized hybrids not observed in the centers of domestication. Thus, Brazil can be considered a secondary center of diversification of common bean. A high degree of genome-wide multilocus associations even among unlinked loci was observed, confirming the high level of structure in the sample and suggesting that association mapping should be conducted in separate Andean and Mesoamerican Brazilian samples.Electronic supplementary materialThe online version of this article (doi:10.1007/s00122-010-1350-5) contains supplementary material, which is available to authorized users.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Microsatellite diversity and genetic structure among common bean (Phaseolus vulgaris L.) landraces in Brazil, a secondary center of diversity

et al. 2010

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“…also analyzed the Vigna radiata cultivars through RAPD markers and found out that a total 267 amplification products were formed at an average of 12.71 per primer with an overall polymorphism of 64%, while Jaccard similarity coefficient values show range from 0.65 to 0.92. The cluster analysis resulted in three clusters revealing greater homology between cultivars released from the same source indicating that RAPD primers are the best source for cultivar improvement program Macial et al (2001). evaluated the variability among the Phaseolus vulgaris cultivars and a landrace of soybean with the help of RAPD markers.…”

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confidence: 99%

Randomly Amplified Polymorphic DNA (RAPD) Molecular Markers as a Valuable Tool to Confirm the Genetic Diversity in Soybean Germplasms (Glycine max)

Mathpal,

Joshi,

Bhatt

et al. 2024

IJARe

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Background: This study was performed to understand the genetic base of soybean which mainly focused to assess the diversity among sixteen soybean germplasms namely (AMS 100-39, BAUS 102, DS 3108, DSB 34, MACS 1493, NRC 128, NRC 130, NRC 131, NRC 132, NRC 136, NRC 137, NRC SL 1, PS 1613, RSC 11-03, RSC 11-07 and SKF SP-11) with two cultivated checks (JS-335 and Bragg). Methods: The genomic isolation was carried out using CTAB buffer and the diversity was estimated with the help of nine RAPD markers using percent polymorphism, PIC content, Jaccard’s similarity index and represented in dendogram. Result: The banding patterns were obtained with all the primer showed a total of 59 bands, out of the which, 17 bands were monomorphic, while other are polymorphic and the amplification ranged from 100 bp to 960 bp. The range of similarity coefficients varies from 0.87 to 0.36. Out of total amplification, products were scored, averages of 70.3% were polymorphic among all genotypes. The cluster clearly divided the whole germplasms into two four groups showing the clear-cut diversity profile of all germplasms. As a result, this study is very beneficial for understanding the diversity of different soybean germplasms and the application of this technique for the development of highly profitable crops.

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Genetic Diversity among Wild Common Beans from Northwestern Argentina Based on Morpho-agronomic and RAPD Data

Galván

Menéndez-Sevillano

Ron

et al. 2006

Genet Resour Crop Evol

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The genetic diversity among 10 wild populations of common bean Phaseolus vulgaris var. aborigineus was analyzed by means of RAPD markers and morpho-agronomic data. The study was performed on populations collected from different sites located in the provinces of Jujuy, Salta and Tucuma´n in northwestern Argentina. Ten quantitative traits and 33 random primers were scored. Clustering based on morpho-agronomic traits and RAPD markers generated similar phenograms that grouped bean populations based on their site of collection. The levels of diversity observed among populations were low suggesting they have a common ancestor. The levels of diversity shown by morpho-agronomic traits were higher compared to those of molecular markers, most probably due to the effect of the environment. Furthermore, a 480-bp DNA band identified a group of wild populations collected from similar sites. Breeding strategies need to exploit this diversity to broaden the genetic base of commercial beans to develop high yield cultivars.

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Cited by 27 publications

References 20 publications

Microsatellite diversity and genetic structure among common bean (Phaseolus vulgaris L.) landraces in Brazil, a secondary center of diversity

Microsatellite diversity and genetic structure among common bean (Phaseolus vulgaris L.) landraces in Brazil, a secondary center of diversity

Randomly Amplified Polymorphic DNA (RAPD) Molecular Markers as a Valuable Tool to Confirm the Genetic Diversity in Soybean Germplasms (Glycine max)

Genetic Diversity among Wild Common Beans from Northwestern Argentina Based on Morpho-agronomic and RAPD Data

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