Registro Completo |
Biblioteca(s): |
Embrapa Milho e Sorgo. |
Data corrente: |
12/11/1997 |
Data da última atualização: |
13/07/2018 |
Tipo da produção científica: |
Artigo em Anais de Congresso |
Autoria: |
PHILLIPS, R. L.; KIM, T. S.; KAEPPLER, S. M.; PARENTONI, S. N.; SHAVER, L.; STUCKER, R. E.; OPENSHAW, S. J. |
Afiliação: |
EMBRAPA-CNPMS; SIDNEY NETTO PARENTONI, CNPMS. |
Título: |
Genetic dissection of maturity using RFLPs. |
Ano de publicação: |
1992 |
Fonte/Imprenta: |
In: ANNUAL CORN & SORGHUM INDUSTRY RESEARCH CONFERENCE, 47, 1992, Chicago. Proceedings. Washington: ASTA, 1992. p. 135-150. |
Idioma: |
Inglês |
Conteúdo: |
Several genetic regions having major effects on maturity have been identified using RFLP analysis. One such region on chromosomes 8 is important across several diverse genotypes and ccounts for up to 50% of the variation for maturity in a cross involving an inbred line (N28) and a 20-backcross generation derivative (N28E). In addition to the chromsome 8 QTL for maturity, we have evidence using the backcross-derived line approach for regions controlling maturity on chromosomes 1, 2, 3, 5, 7, and 9. Chromosome 5 appears to be especially important in both magnitude of effect and across several genetic hackground. Maturity as measured by days to pollen shed or silking may be controlled by additive or nearly dominant gene action depending on the chromosome region. The marker-trait linkages were consistent across environnments based on A662 X B73 F3 per se and testcross evaluations from three locations in one year. UMC12 (chromosome 8) and UMC54 (chromosome 5) also marked important regions for maturity in these materials. |
Palavras-Chave: |
Maize; RFLP. |
Thesagro: |
Biotecnologia; Melhoramento; Milho; Zea Mays. |
Thesaurus Nal: |
biotechnology; breeding. |
Categoria do assunto: |
G Melhoramento Genético |
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/40929/1/Genetic-dissection.pdf
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Marc: |
LEADER 01817nam a2200277 a 4500 001 1477296 005 2018-07-13 008 1992 bl uuuu u00u1 u #d 100 1 $aPHILLIPS, R. L. 245 $aGenetic dissection of maturity using RFLPs.$h[electronic resource] 260 $aIn: ANNUAL CORN & SORGHUM INDUSTRY RESEARCH CONFERENCE, 47, 1992, Chicago. Proceedings. Washington: ASTA, 1992. p. 135-150.$c1992 520 $aSeveral genetic regions having major effects on maturity have been identified using RFLP analysis. One such region on chromosomes 8 is important across several diverse genotypes and ccounts for up to 50% of the variation for maturity in a cross involving an inbred line (N28) and a 20-backcross generation derivative (N28E). In addition to the chromsome 8 QTL for maturity, we have evidence using the backcross-derived line approach for regions controlling maturity on chromosomes 1, 2, 3, 5, 7, and 9. Chromosome 5 appears to be especially important in both magnitude of effect and across several genetic hackground. Maturity as measured by days to pollen shed or silking may be controlled by additive or nearly dominant gene action depending on the chromosome region. The marker-trait linkages were consistent across environnments based on A662 X B73 F3 per se and testcross evaluations from three locations in one year. UMC12 (chromosome 8) and UMC54 (chromosome 5) also marked important regions for maturity in these materials. 650 $abiotechnology 650 $abreeding 650 $aBiotecnologia 650 $aMelhoramento 650 $aMilho 650 $aZea Mays 653 $aMaize 653 $aRFLP 700 1 $aKIM, T. S. 700 1 $aKAEPPLER, S. M. 700 1 $aPARENTONI, S. N. 700 1 $aSHAVER, L. 700 1 $aSTUCKER, R. E. 700 1 $aOPENSHAW, S. J.
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Registro original: |
Embrapa Milho e Sorgo (CNPMS) |
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