학술논문
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- 영문명
- Genetic variation of 7S and 11S globulins in soybean seed
- 발행기관
- 한국자원식물학회
- 저자명
- 김용호
- 간행물 정보
- 『한국자원식물학회지』제12권 제3호, 198~203쪽, 전체 6쪽
- 주제분류
- 농수해양 > 기타농수해양
- 파일형태
- 발행일자
- 1999.09.30
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국문 초록
영문 초록
7S and 11S globulins are two major storage proteins in soybean seed. For improving the quality of soybean seed protein, an increase of 11S/7S ratio would be a desirable objective because 11S globulin contains much more sulfur-containing amino acids than 7S globulin. In this study, six soybean varieties grown at three locations were used for genetic variation analysis of 7S and 11S globulins. It was possible to screen the soybean genotypes having aberrant subunit compositions of the two globulins by a sodium dodecyl sulfate polyacrylamide gel electrophoresis(SDS-PAGE). So, heritabilities, genotypic and phenotypic correlations among eight globulin fraction contents of soybean seeds were estimated. The mean value of 7S and 11S globulin fraction contents were 38.9% and 61.1%, respectively, and the ratio of 7S to 11S globulin ranged from 0.58 to 0.74. The high heritability value was found in β subunits but the values of acidic and basic subunits were relatively low. Genotypic correlations were higher than the corresponding phenotypic correlations in most of globulin subunit contents. β subunits was negatively correlated with α and α subunits among 7S fractions, while no significant correlation between α and α subunits could be found In case of 11S fractions, acidic and basic subunits exhibited no genotypic but negative phenotypic correlation.
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