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Registro Completo |
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Biblioteca(s): |
Embrapa Arroz e Feijão; Embrapa Recursos Genéticos e Biotecnologia. |
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Data corrente: |
15/09/2010 |
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Data da última atualização: |
06/02/2023 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
BURLE, M. L.; FONSECA, J. R.; KAMI, J. A.; GEPTS, P. |
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Afiliação: |
MARILIA LOBO BURLE, CENARGEN; JAIME ROBERTO FONSECA, CNPAF; JAMES A. KAMI, UNIVERSITY OF CALIFORNIA; PAUL GEPTS, UNIVERSITY OF CALIFORNIA. |
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Título: |
Microsatellite diversity and genetic structure among common bean (Phaseolus vulgaris L.) landraces in Brazil, a secondary center of diversity. |
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Ano de publicação: |
2010 |
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Fonte/Imprenta: |
Theoretical and Applied Genetics, New York, v. 121, p. 801-813, 2010. |
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Idioma: |
Inglês |
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Conteúdo: |
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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Palavras-Chave: |
Diversidade genética. |
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Thesagro: |
Feijão; Phaseolus vulgaris; Variação genética. |
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Thesaurus Nal: |
Beans; Genetic variation; Microsatellite repeats. |
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Categoria do assunto: |
--
S Ciências Biológicas |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/doc/872582/1/s00122-010-1350-5.pdf
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/23332/1/eScholarship.pdf
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Marc: |
LEADER 02141naa a2200241 a 4500
001 1872582
005 2023-02-06
008 2010 bl uuuu u00u1 u #d
100 1 $aBURLE, M. L.
245 $aMicrosatellite diversity and genetic structure among common bean (Phaseolus vulgaris L.) landraces in Brazil, a secondary center of diversity.$h[electronic resource]
260 $c2010
520 $aBrazil 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.
650 $aBeans
650 $aGenetic variation
650 $aMicrosatellite repeats
650 $aFeijão
650 $aPhaseolus vulgaris
650 $aVariação genética
653 $aDiversidade genética
700 1 $aFONSECA, J. R.
700 1 $aKAMI, J. A.
700 1 $aGEPTS, P.
773 $tTheoretical and Applied Genetics, New York$gv. 121, p. 801-813, 2010.
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Embrapa Recursos Genéticos e Biotecnologia (CENARGEN) |
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