Data/hora: 11/06/2024 09:26:04

Biblioteca(s): | Embrapa Trigo; Embrapa Unidades Centrais.
Data corrente: | 17/06/2019
Data da última atualização: | 02/12/2019
Autoria: | VANCINI, C.; TORRES, G. A. M.; MIRANDA, M. Z. de; CONSOLI, L.; BONOW, S.; GRANDO, M. F.
Afiliação: | Camila Vancini, Universidade de Passo Fundo - UPF; GISELE ABIGAIL MONTAN TORRES, CNPT; MARTHA ZAVARIZ DE MIRANDA, CNPT; LUCIANO CONSOLI, CNPT; SANDRO BONOW, CPACT; Magali Ferrari Grando, Universidade de Passo Fundo - UPF.
Título: | Impact of high-molecular-weight glutenin alleles on wheat technological quality.
Ano de publicação: | 2019
Fonte/Imprenta: | Pesquisa Agropecuária Brasileira, v. 54, e00639, 2019.
Idioma: | Inglês
Notas: | Título em português: Impacto dos alelos de gluteninas de alto peso molecular sobre a qualidade tecnológica de trigo.
Conteúdo: | The objective of this work was to determine high-molecular-weight glutenin subunits (HMW-GS) and their relationship with technological quality parameters in a collection of wheat (Triticum aestivum) genotypes. Two hundred and seventy-two accessions were evaluated on SDS-Page, and molecular markers were used to identify the 7oe allele and 1BL.1RS translocation. For 219 accessions with a homogenous glutenin profile, 53 profiles and 21 alleles were identified. The most frequent combination was 2*/7+9/5+10 (11.9%). The mean value of genetic diversity for the three assessed Glu-1 loci was 0.67. Based on the HMW-GS profile and on the presence of the 1BL.1RS translocation, the Glu-1 score was calculated and its correlation with technological quality parameters was analyzed. The main effects of the Glu-1 loci and of the 1BL.1RS translocation were estimated. The Glu-1 score showed a significant positive correlation with sedimentation volume, gluten strength, dough tenacity, dough extensibility, elasticity index, grain hardness index, and farinograph stability, with values between 0.23 and 0.51. The accessions with the 1, 7oe+8, and 5+10 alleles showed the highest values for gluten strength and farinograph stability. The score of the Glu-A1 alleles should be adjusted to Brazilian wheat genotypes and cultivation conditions.
Palavras-Chave: | Escore Glu-1; Força de glúten; Glu-1 score; Gluten strength; HMW-GS; Qualidade panificativa.
Thesagro: | Glúten; Triticum Aestivum.
Thesaurus Nal: | Breadmaking quality.

Categoria do assunto:

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G Melhoramento Genético

URL: | http://ainfo.cnptia.embrapa.br/digital/bitstream/item/198624/1/Impact-of-high-molecular-weight.pdf
Registro original: | Embrapa Trigo (CNPT)

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