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.

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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 diversiWcation. 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 diversiWcation of common bean. A high degree of genome-wide multilocus associations even among unlinked loci was observed, conWrming the high level of structure in the sample and suggesting that association mapping should be conducted in separate Andean and Mesoamerican Brazilian samples.

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Bibliographic Details
Main Authors: BURLE, M. L., FONSECA, J. R., KAMI, J. A., GEPTS, P.
Other Authors: MARILIA LOBO BURLE, CENARGEN; JAIME ROBERTO FONSECA, CNPAF; JAMES A. KAMI, UNIVERSITY OF CALIFORNIA; PAUL GEPTS, UNIVERSITY OF CALIFORNIA.
Format: Artigo de periódico biblioteca
Language:Ingles
English
Published: 2011-01-10
Subjects:Diversidade genética,
Online Access:http://www.alice.cnptia.embrapa.br/alice/handle/doc/872582
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spelling dig-alice-doc-8725822023-02-06T18:01:32Z Microsatellite diversity and genetic structure among common bean (Phaseolus vulgaris L.) landraces in Brazil, a secondary center of diversity. BURLE, M. L. FONSECA, J. R. KAMI, J. A. GEPTS, P. MARILIA LOBO BURLE, CENARGEN; JAIME ROBERTO FONSECA, CNPAF; JAMES A. KAMI, UNIVERSITY OF CALIFORNIA; PAUL GEPTS, UNIVERSITY OF CALIFORNIA. Diversidade genética 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 diversiWcation. 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 diversiWcation of common bean. A high degree of genome-wide multilocus associations even among unlinked loci was observed, conWrming the high level of structure in the sample and suggesting that association mapping should be conducted in separate Andean and Mesoamerican Brazilian samples. 2023-02-06T18:01:32Z 2023-02-06T18:01:32Z 2011-01-10 2010 Artigo de periódico Theoretical and Applied Genetics, New York, v. 121, p. 801-813, 2010. http://www.alice.cnptia.embrapa.br/alice/handle/doc/872582 Ingles en openAccess
institution EMBRAPA
collection DSpace
country Brasil
countrycode BR
component Bibliográfico
access En linea
databasecode dig-alice
tag biblioteca
region America del Sur
libraryname Sistema de bibliotecas de EMBRAPA
language Ingles
English
topic Diversidade genética
Diversidade genética
spellingShingle Diversidade genética
Diversidade genética
BURLE, M. L.
FONSECA, J. R.
KAMI, J. A.
GEPTS, P.
Microsatellite diversity and genetic structure among common bean (Phaseolus vulgaris L.) landraces in Brazil, a secondary center of diversity.
description 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 diversiWcation. 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 diversiWcation of common bean. A high degree of genome-wide multilocus associations even among unlinked loci was observed, conWrming the high level of structure in the sample and suggesting that association mapping should be conducted in separate Andean and Mesoamerican Brazilian samples.
author2 MARILIA LOBO BURLE, CENARGEN; JAIME ROBERTO FONSECA, CNPAF; JAMES A. KAMI, UNIVERSITY OF CALIFORNIA; PAUL GEPTS, UNIVERSITY OF CALIFORNIA.
author_facet MARILIA LOBO BURLE, CENARGEN; JAIME ROBERTO FONSECA, CNPAF; JAMES A. KAMI, UNIVERSITY OF CALIFORNIA; PAUL GEPTS, UNIVERSITY OF CALIFORNIA.
BURLE, M. L.
FONSECA, J. R.
KAMI, J. A.
GEPTS, P.
format Artigo de periódico
topic_facet Diversidade genética
author BURLE, M. L.
FONSECA, J. R.
KAMI, J. A.
GEPTS, P.
author_sort BURLE, M. L.
title Microsatellite diversity and genetic structure among common bean (Phaseolus vulgaris L.) landraces in Brazil, a secondary center of diversity.
title_short Microsatellite diversity and genetic structure among common bean (Phaseolus vulgaris L.) landraces in Brazil, a secondary center of diversity.
title_full Microsatellite diversity and genetic structure among common bean (Phaseolus vulgaris L.) landraces in Brazil, a secondary center of diversity.
title_fullStr Microsatellite diversity and genetic structure among common bean (Phaseolus vulgaris L.) landraces in Brazil, a secondary center of diversity.
title_full_unstemmed Microsatellite diversity and genetic structure among common bean (Phaseolus vulgaris L.) landraces in Brazil, a secondary center of diversity.
title_sort microsatellite diversity and genetic structure among common bean (phaseolus vulgaris l.) landraces in brazil, a secondary center of diversity.
publishDate 2011-01-10
url http://www.alice.cnptia.embrapa.br/alice/handle/doc/872582
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AT kamija microsatellitediversityandgeneticstructureamongcommonbeanphaseolusvulgarisllandracesinbrazilasecondarycenterofdiversity
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