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Registro Completo |
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Biblioteca(s): |
Embrapa Agricultura Digital. |
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Data corrente: |
15/09/2009 |
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Data da última atualização: |
22/10/2010 |
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Autoria: |
BONI, T. A.; PRIOLI, A. J.; PRIOLI, S. M. A. P.; LUCIO, L. C.; MELLO, R. de. |
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Afiliação: |
TALGE AIEX BONI, NUPÉLIA/UEM; ALBERTO JOSÉ PRIOLI, NUPÉLIA, DBC/UEM; SÔNIA MARIA ALVES PINTO PRIOLI, NUPÉLIA, DBC/UEM; LÉIA CAROLINA LUCIO, NUPÉLIA/UEM; RODRIGO DE MELLO, NUPÉLIA/UEM. |
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Título: |
Inheritance of aluminum tolerance in maize. |
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Ano de publicação: |
2009 |
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Fonte/Imprenta: |
Crop Breeding and Applied Biotechnology, Londrina, v. 9, n. 2, p. 147-153, June 2009. |
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Idioma: |
Inglês |
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Conteúdo: |
The purpose of this study was to investigate aluminum tolerance in maize. For this purpose, a nutrient solution was used with the tolerant (L922) and sensitive (Ast214) homozygous parental lines, with the segregating generation F2 and with the F2:3 lines derived thereof. Seeds were germinated on paper and seedlings transferred to a nutrient solution containing 4.5 mg L-1 aluminum. In the experiments involving F2:3 derived lines groups of rows with F2:3 plants were intercropped with rows of eight seedlings of the parental lines in a completely randomized block design. Results of the F2 generation demonstrated a bimodal distribution of relative frequencies, with approximately three times more seedlings in the tolerant group. This suggests the participation of only one locus in tolerance inheritance. The narrow-sense heritability (F2, F2:3) of seminal root length of F2 plants and means of F2:3 lines was 0.49, which partially explained the bimodal frequency distribution of means of F2:3 lines, but was not accurate enough to differentiate tolerant from sensitive groups. |
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Palavras-Chave: |
Distribuição bimodal; Herança genética; Herdabilidade; Plântulas; Tolerância ao alumínio em milho; Zea mays L. |
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Thesagro: |
Agricultura; Biotecnologia; Genética; Solução Nutritiva. |
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Categoria do assunto: |
G Melhoramento Genético |
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Marc: |
LEADER 01883naa a2200289 a 4500
001 1427984
005 2010-10-22
008 2009 bl uuuu u00u1 u #d
100 1 $aBONI, T. A.
245 $aInheritance of aluminum tolerance in maize.
260 $c2009
520 $aThe purpose of this study was to investigate aluminum tolerance in maize. For this purpose, a nutrient solution was used with the tolerant (L922) and sensitive (Ast214) homozygous parental lines, with the segregating generation F2 and with the F2:3 lines derived thereof. Seeds were germinated on paper and seedlings transferred to a nutrient solution containing 4.5 mg L-1 aluminum. In the experiments involving F2:3 derived lines groups of rows with F2:3 plants were intercropped with rows of eight seedlings of the parental lines in a completely randomized block design. Results of the F2 generation demonstrated a bimodal distribution of relative frequencies, with approximately three times more seedlings in the tolerant group. This suggests the participation of only one locus in tolerance inheritance. The narrow-sense heritability (F2, F2:3) of seminal root length of F2 plants and means of F2:3 lines was 0.49, which partially explained the bimodal frequency distribution of means of F2:3 lines, but was not accurate enough to differentiate tolerant from sensitive groups.
650 $aAgricultura
650 $aBiotecnologia
650 $aGenética
650 $aSolução Nutritiva
653 $aDistribuição bimodal
653 $aHerança genética
653 $aHerdabilidade
653 $aPlântulas
653 $aTolerância ao alumínio em milho
653 $aZea mays L
700 1 $aPRIOLI, A. J.
700 1 $aPRIOLI, S. M. A. P.
700 1 $aLUCIO, L. C.
700 1 $aMELLO, R. de
773 $tCrop Breeding and Applied Biotechnology, Londrina$gv. 9, n. 2, p. 147-153, June 2009.
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Registro original: |
Embrapa Agricultura Digital (CNPTIA) |
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