国立研究開発法人 国際農林水産業研究センター | JIRCAS

Utilization and Molecular Characterization of Seed Protein Composition Mutants in Rice Plants

JARQ : Japan Agricultural Research Quarterly
ISSN
00213551
書誌レコードID(総合目録DB)
AA0068709X
本文フルテキスト

Through the use of mutation breeding, we developed the cultivar LGC1, which has a low glutelin and high prolamine content, from Nihonmasari. Because of the indigestibility of prolamine, LGC1 can be used as a low-protein rice in practice. It is thus a prospective food for people such as patients with kidney disease who must restrict their protein intake. Furthermore, to reduce the content of easy-to-digest protein in LGC1, we developed two new rice cultivars, ‘LGC-Katsu’ and ‘LGC-Jun’, from a cross between LGC1 and a mutant line of Koshihikari (induced by gamma-irradiation) that was deficient in 26-kDa globulin (another easy-to-digest protein). The glutelin content of these two new cultivars is reduced to about one-third that of regular cultivars, and 26-kDa globulin is completely absent. Consequently, the total amount of easy-to-digest protein in the new cultivars is about half that of regular cultivars, and about 15% less than in LGC1. These cultivars should therefore greatly help in the dietary management of patients with chronic renal failure. We also discussed the genome structures and mechanisms of the seed protein composition mutation.

刊行年月2009-01-01
作成者NISHIMURA MinoruMORITA RyoheiKUSABA Makoto
著者キーワード

chronic renal failure

deletion

easy-to-digest

glutelin

公開者Japan International Research Center for Agricultural Sciences
データ作成日2009-01-01
国立情報学研究所メタデータ主題語彙集(資源タイプ)Journal Article
43
1
開始ページ1
終了ページ5
DOI10.6090/jarq.43.1
権利Japan International Research Center for Agricultural Sciences
言語eng