Data/hora: 20/06/2024 16:17:07

Biblioteca(s): | Embrapa Arroz e Feijão.
Tipo da produção científica: | Artigo em Periódico Indexado
Data corrente: | 02/10/2008
Data da última atualização: | 14/05/2022
Autoria: | NELSON, J. C.; ANDREESCU, C.; BRESEGHELLO, F.; FINNEY, P. L.; GUALBERTO, D. G.; BERGMAN, C. J.; PEÑA, R. J.; PERRETANT, M. R.; LEROY, P.; QUALSET, C. O.; SORRELLS, M. E.
Afiliação: | JAMES C. NELSON; CRISTINA ANDREESCU; FLAVIO BRESEGHELLO, CNPAF; PATRICK L. FINNEY; DAISY G. GUALBERTO; CHRISTINE J. BERGMAN; ROBERTO J. PEÑA; MARIE REINE PERRETANT; PHILIPPE LEROY; CALVIN O. QUALSET; MARK E. SORRELLS.
Título: | Quantitative trait locus analysis of wheat quality traits.
Ano de publicação: | 2006
Fonte/Imprenta: | Euphytica, v. 149, n. 1/2, p. 145-159, May 2006.
DOI: | https://doi.org/10.1007/s10681-005-9062-7
Idioma: | Inglês
Conteúdo: | Milling and baking quality traits in wheat (Triticum aestivum L.) were studied by QTL analysis in the ITMI population, a set of 114 recombinant inbred lines (RILs) generated from a synthetic-hexaploid (W7985) × breadwheat (Opata 85) cross. Grain from RILs grown in U.S., French, and Mexican wheat-growing regions was assayed for kernel-texture traits, protein concentration and quality, and dough strength and mixing traits. Only kerneltexture traits showed similar genetic control in all environments, with Opata ha alleles at the hardness locus Ha on chromosome arm 5DS increasing grain hardness, alkaline water retention capacity, and flour yield. Dough strength was most strongly influenced by Opata alleles at 5DS loci near or identical to Ha. Grain protein concentration was associated not with high-molecular-weight glutenin loci but most consistently with the Gli-D2 gliadin locus on chromosome arm 6DS. In Mexican-grown material, a 2DS locus near photoperiod-sensitivity gene Ppd1 accounted for 25% of variation in protein, with the ppd1-coupled allele associated with higher (1.1%) protein concentration. Mixogram traits showed most influence from chromosomal regions containing gliadin or low-molecular-weight glutenin loci on chromosome arms 1AS, 1BS, and 6DS, with the synthetic hexaploid contributing favorable alleles.
Palavras-Chave: | QTL; Recombinant inbred.
Thesagro: | Trigo; Triticum Aestivum.
Categoria do assunto: | X Pesquisa, Tecnologia e Engenharia
Registro original: | Embrapa Arroz e Feijão (CNPAF)
Exemplares: | CNPAF - (27451-1) - UPC - AP - DD - 2006 -  - 2006 - DIS