Proteínas de reserva de acessos de coleção nuclear de arroz

Ricardo Diógenes Dias Silveira; Karina Freire d' Eça Nogueira Santos; Claudia Cristina Garcia Martim Didonet; Agostinho Dirceu Didonet; Claudio Brondani

doi:10.1590/S1678-3921.pab2010.v45.8432

Storage proteins in accessions of a rice core collection

Authors

Ricardo Diógenes Dias Silveira Embrapa Rice and Beans
Karina Freire d' Eça Nogueira Santos Embrapa Rice and Beans
Claudia Cristina Garcia Martim Didonet Goiás State University
Agostinho Dirceu Didonet Embrapa Rice and Beans
Claudio Brondani Embrapa Rice and Beans

DOI:

https://doi.org/10.1590/S1678-3921.pab2010.v45.8432

Keywords:

Oryza sativa, protein content, genetic resources, nutritional value

Abstract

The objective of this work was to quantify the total storage protein content of 550 accessions from Coleção Nuclear de Arroz da Embrapa (Embrapa Rice Core Collection – CNAE), and to evaluate the SDS-PAGE profile of the 20 accessions that showed the highest storage protein content. High storage protein content was found in 103 CNAE accessions (≥12.0%), intermediate content (11.9 to 9.0%) in 309, and low protein content (≤ 8.9%) in 138. Six out of the 20 accessions with the highest storage protein content showed a differential profile for glutelin, which is the most abundant rice storage protein fraction. There is a large variability of rice storage protein in CNAE accessions, which can be explored in breeding programs to increase the nutritional value of the rice consumed in Brazil.

Author Biographies

Ricardo Diógenes Dias Silveira, Embrapa Rice and Beans

Laboratório de Biotecnologia
Karina Freire d' Eça Nogueira Santos, Embrapa Rice and Beans

Laboratório de Biotecnologia
Claudia Cristina Garcia Martim Didonet, Goiás State University

Laboratório de Bioquímica
Agostinho Dirceu Didonet, Embrapa Rice and Beans

Laboratório de Biotecnologia
Claudio Brondani, Embrapa Rice and Beans

Laboratório de Biotecnologia

Downloads

PDF (Portuguese (Brazil))

Published

2011-03-22

Issue

v.45, n.12, dez. 2010

Section

GENETICS

How to Cite

Silveira, R. D. D., Santos, K. F. d' E. N., Didonet, C. C. G. M., Didonet, A. D., & Brondani, C. (2011). Storage proteins in accessions of a rice core collection. Pesquisa Agropecuaria Brasileira, 45(12), 1441-1447. https://doi.org/10.1590/S1678-3921.pab2010.v45.8432

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