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Registro Completo |
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Biblioteca(s): |
Embrapa Arroz e Feijão. |
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Data corrente: |
22/02/2006 |
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Data da última atualização: |
03/07/2008 |
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Autoria: |
SILVA, S. D. dos A. e; SERENO, M. J. C. de M.; SILVA, C. F. L. e; OLIVEIRA, A. C. de; BARBOSA NETO, J. F. |
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Título: |
Genetic parameters and QTL for tolerance of flooded soils in maize. |
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Ano de publicação: |
2005 |
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Fonte/Imprenta: |
Crop Breeding and Applied Biotechnology, Viçosa, MG, v. 5, n. 3, p. 287-293, Sept. 2005. |
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Idioma: |
Inglês |
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Conteúdo: |
Flooding tolerance is important for maize in southern Brazil. Polypeptides involved in glycolysis and fermentation are generally tolerance-related. Objective of this work was to associate markers for tolerance to flooding in maize. One hundred and seventeen F3 families were phenotyped for shoot (SDM) and root (RDM) dry matter and 74 were selectively genotyped with 44 microsatellite markers. A single marker analysis was performed to detect QTL. Analysis of variance indicated the presence of significant genetic variability for both traits. Three markers were associated to SDM and two to RDM. For SDM the loci involved were glutamine synthelase (chromosome 5, R2=0.16), zein (chromosome 4, R2=0.15), and triosephosphate isomerase (chromosome 3, R2=0.14). For RDM, zein (chromosome 4, R2=0.11) and triosephosphate isomerase (chromosome 3, R2=0.11) were associated. Multiple loci analysis indicated R2=0.32 for SDM and R2=0.19 for RDM, indicating that a fraction of the genetic variation present in F2 was explained by the analyzed markers.. |
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Palavras-Chave: |
Herdabilidade; Herdability; Microsatélite. |
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Thesagro: |
Milho; Zea Mays. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 01711naa a2200229 a 4500
001 1213875
005 2008-07-03
008 2005 bl uuuu u00u1 u #d
100 1 $aSILVA, S. D. dos A. e
245 $aGenetic parameters and QTL for tolerance of flooded soils in maize.
260 $c2005
520 $aFlooding tolerance is important for maize in southern Brazil. Polypeptides involved in glycolysis and fermentation are generally tolerance-related. Objective of this work was to associate markers for tolerance to flooding in maize. One hundred and seventeen F3 families were phenotyped for shoot (SDM) and root (RDM) dry matter and 74 were selectively genotyped with 44 microsatellite markers. A single marker analysis was performed to detect QTL. Analysis of variance indicated the presence of significant genetic variability for both traits. Three markers were associated to SDM and two to RDM. For SDM the loci involved were glutamine synthelase (chromosome 5, R2=0.16), zein (chromosome 4, R2=0.15), and triosephosphate isomerase (chromosome 3, R2=0.14). For RDM, zein (chromosome 4, R2=0.11) and triosephosphate isomerase (chromosome 3, R2=0.11) were associated. Multiple loci analysis indicated R2=0.32 for SDM and R2=0.19 for RDM, indicating that a fraction of the genetic variation present in F2 was explained by the analyzed markers..
650 $aMilho
650 $aZea Mays
653 $aHerdabilidade
653 $aHerdability
653 $aMicrosatélite
700 1 $aSERENO, M. J. C. de M.
700 1 $aSILVA, C. F. L. e
700 1 $aOLIVEIRA, A. C. de
700 1 $aBARBOSA NETO, J. F.
773 $tCrop Breeding and Applied Biotechnology, Viçosa, MG$gv. 5, n. 3, p. 287-293, Sept. 2005.
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Registro original: |
Embrapa Arroz e Feijão (CNPAF) |
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