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| Registros recuperados : 382 | |
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Registro Completo
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Biblioteca(s): |
Embrapa Arroz e Feijão. |
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Data corrente: |
24/11/2008 |
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Data da última atualização: |
02/06/2022 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
BALDONI, A. B.; RAMALHO, M. A. P.; ABREU, A. de F. B. |
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Afiliação: |
AISY B. BALDONI, UFLA; MAGNO ANTONIO PATTO RAMALHO, UFLA; ANGELA DE FATIMA BARBOSA ABREU, CNPAF. |
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Título: |
Allele frequency and selection efficiency in cross populations of Andean x Mesoamerican common beans (Phaseolus vulgaris L. Fabales, Fabaceae). |
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Ano de publicação: |
2008 |
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Fonte/Imprenta: |
Genetics and Molecular Biology, v. 31, n. 4, p. 914-919, Dec. 2008. |
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Idioma: |
Inglês |
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Conteúdo: |
Strategies were investigated for improving efficiency in the use of segregating common bean (Phaseolus vulgaris) populations using crosses between the Andean cultivar BRS-Radiante and the Mesoamerican parent cultivar Carioca-MG by developing populations with 12.5%, 25%, 50%, 75% and 87.5% of the allele frequency of one of the parents. For each of the five populations we evaluated for two traits, the number of days to the beginning of flowering and grain yield (g plot -1), in the F2:3 (sown in February 2006) and F2:4 (sown in July 2006) generation progenies using 15 x 15 lattice design experiments, with 44 progenies (n = 220 plants) plus the two parents and three controls being evaluated for each generation. In terms of variability release, the populations with different parental allele frequencies presented no consistent tendency of alteration. In general, genetic variance was stated among progenies in all populations, indicating success with selection. For grain yield, the lowest mean was observed in the populations with 50% of the alleles of both parents. If, for instance, the objective is to develop earlier flowering lines, the best strategy is to perform two, or at least one, backcross with the earliest parent. The most suitable allele frequency is to be determined according to the desired grain type. |
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Thesagro: |
Cruzamento; Feijão; Hereditariedade; Melhoramento Genético Vegetal; Phaseolus Vulgaris; Seleção. |
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Categoria do assunto: |
G Melhoramento Genético |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/33589/1/GMBBaldoni.pdf
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Marc: |
LEADER 02044naa a2200217 a 4500
001 1217498
005 2022-06-02
008 2008 bl uuuu u00u1 u #d
100 1 $aBALDONI, A. B.
245 $aAllele frequency and selection efficiency in cross populations of Andean x Mesoamerican common beans (Phaseolus vulgaris L. Fabales, Fabaceae).$h[electronic resource]
260 $c2008
520 $aStrategies were investigated for improving efficiency in the use of segregating common bean (Phaseolus vulgaris) populations using crosses between the Andean cultivar BRS-Radiante and the Mesoamerican parent cultivar Carioca-MG by developing populations with 12.5%, 25%, 50%, 75% and 87.5% of the allele frequency of one of the parents. For each of the five populations we evaluated for two traits, the number of days to the beginning of flowering and grain yield (g plot -1), in the F2:3 (sown in February 2006) and F2:4 (sown in July 2006) generation progenies using 15 x 15 lattice design experiments, with 44 progenies (n = 220 plants) plus the two parents and three controls being evaluated for each generation. In terms of variability release, the populations with different parental allele frequencies presented no consistent tendency of alteration. In general, genetic variance was stated among progenies in all populations, indicating success with selection. For grain yield, the lowest mean was observed in the populations with 50% of the alleles of both parents. If, for instance, the objective is to develop earlier flowering lines, the best strategy is to perform two, or at least one, backcross with the earliest parent. The most suitable allele frequency is to be determined according to the desired grain type.
650 $aCruzamento
650 $aFeijão
650 $aHereditariedade
650 $aMelhoramento Genético Vegetal
650 $aPhaseolus Vulgaris
650 $aSeleção
700 1 $aRAMALHO, M. A. P.
700 1 $aABREU, A. de F. B.
773 $tGenetics and Molecular Biology$gv. 31, n. 4, p. 914-919, Dec. 2008.
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Embrapa Arroz e Feijão (CNPAF) |
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