남일벼 돌연변이 후대 계통 ‘Namil(SA)-flo1’의 분질배유 특성에 대한 유전분석

• 영문명: Genetic Analysis on Floury Endosperm Characteristics of ‘Namil(SA)-flo1’, a Japonica Rice Mutant Line
• 발행기관: 한국작물학회
• 저자명: 모영준(Young-Jun Mo) 정지웅(Ji-Ung Jeung) 강경호(Kyung-Ho Kang) 이점식(Jeom-Sig Lee) 김보경(Bo-Kyeong Kim)
• 간행물 정보: 『한국작물학회지』제58권 제3호, 283~291쪽, 전체 9쪽
• 주제분류: 농수해양 > 기타농수해양
• 파일형태: PDF
• 발행일자: 2013.09.30

영문 초록

Rice varieties with suitable flour-making quality are required to promote rice processed-food industry and boost rice consumption in Korea. ‘Namil (SA)-flo1’ is an advanced mutant line with floury endosperm which shows good flour-making quality under dry-milling process. Genetic analysis was carried out to localize the chromosomal region responsible for the floury endosperm of ‘Namil (SA)- flo1’. By using 94 F2 progenies, which were derived from ‘Namil (SA)-flo1’ × ‘Milyang 23’, floury grains percentage was investigated as phenotypic data, and genotyping was conducted with 54 SSR markers. Association analysis showed that the target genetic region for floury endosperm is on middle-low region of chromosome 5. Through further association analysis with increased number of SSR markers on chromosome 5, we found that genotypic variation in RM164 explains 79.7% of the variation in floury grains percentage of F2:3 seeds. The floury endosperm locus was localized on 17.7-20.7 Mbp region of chromosome 5 and will be further analyzed for fine mapping and gene identification.

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키워드

rice floury endosperm mutant sodium azide (SA) genetic locus