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논문 기본 정보

자료유형
학술저널
저자정보
이지윤 (National Institute of Crop Science Rural Development Administration Wanju 55365 Korea) 강주원 (National Institute of Crop Science Rural Development Administration Wanju 55365 Korea) 조수민 (National Institute of Crop Science Rural Development Administration Wanju 55365 Korea) 권영호 (National Institute of Crop Science Rural Development Administration Wanju 55365 Korea) 이소명 (National Institute of Crop Science Rural Development Administration Wanju 55365 Korea) 이샛별 (National Institute of Crop Science Rural Development Administration Wanju 55365 Korea) 신동진 (National Institute of Crop Science Rural Development Administration Wanju 55365 Korea) 박동수 (National Institute of Crop Science Rural Development Administration Wanju 55365 Korea) 이종희 (National Institute of Crop Science Rural Development Administration Wanju 55365 Korea) 고종민 (Department of National Institue of Crop Science RDA) 조준현 (National Institute of Crop Science Rural Development Administration Wanju 55365 Korea)
저널정보
한국육종학회 Plant Breeding and Biotechnology Plant Breeding and Biotechnology Vol.9 No.3
발행연도
2021.9
수록면
199 - 212 (14page)

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A total of 134 domestic and foreign genetic resources were analyzed for their protein and amino acids contents in order to identify breeding lines with high lysine content to improve nutritional components of rice. The protein contents ranged between 6.7% and 14.8%, with an average of 8.7%. The Dharial mutant-derived lines had relatively high protein content with the highest amino acids content of 130.16 mg/g and the highest lysine content of 3.86 mg/g which is about 5 times higher than that of the parent. In the case of mutant-derived lines with high floury endosperm such as Goami2, Dodamssal, Milyang320 and LA1, the total amino acids content was as low as 72.61-82.0 mg/g; however, lysine content ranged high between 2.64-3.35 mg/g with lysine ratio to the total amino acids was 3.6%-4.1% which is higher than the average lysine content ratio of 3.0%. Furthermore, correlation analysis revealed a very strong positive correlation between the total amino acids and total protein contents. In contrast, lysine content showed no significant correlation neither with total amino acids nor with protein contents. The lysine content of Milyang320, which was grown in 5 regions across Korea was 0.33%, showing an increase of about 22% compared to that recorded in Nampyeong (0.27%). Therefore, these data suggest that lysine content of Milyang320 is controlled genetically and could be serve as a source in high lysine rice breeding program.

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