지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
커뮤니티
연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
초록· 키워드
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We conducted a QTL analysis of grain quality traits using 117 BC3F4 and BC3F5 lines developed from a cross between
Ilpumbyeo and Moroberekan. Genotypes of 117 BC3F5 lines were determined using 134 simple sequence repeat (SSR) markers.
A linkage map constructed using 134 SSR markers was employed to characterize quantitative trait loci (QTL). The 117 BC3F4
and BC3F5 lines were evaluated for eleven grain quality traits in 2005 and 2006. A total of 18 QTLs were identified for eleven
traits, and the phenotypic variance explained by each QTL ranged from 9.9% to 35.2%. Moroberekan alleles contributed positive
effects in the Ilpumbyeo background at two QTL loci for 1,000 grain weight. Four QTLs, two for chalky rice and one each for
1,000 grain weight and head rice were consistently detected in two consecutive years indicating that these QTLs are stable.
Clusters of QTLs were observed in three chromosome regions. One cluster harboring five QTLs including head rice and brown
rice ratio near SSR markers RM190 and RM314 was detected on chromosome 6. Another cluster harboring grain weight and
white belly was detected on chromosome 2. Increase in white belly at this locus might be due to the increase in grain weight
due to the presence of the Moroberekan allele. The Moroberekan alleles at two QTL loci, gw3 and gw4 associated with increased
grain weight might be useful in breeding programs to develop high-yielding cultivars.
목차
등록된 정보가 없습니다.
참고문헌 (23)
참고문헌 신청
Aluko G / 2004 / QTL mapping of grain quality traits from the interspecific cross Oryza sativa x O / glaberrima. Theor. Appl. Genet. 109 : 630 ~ 639
Amarawathi YL / 2008 / Mapping of quantitative trait loci for basmati quality traits in rice / Mol. Breeding 21 : 49 ~ 65
Association of Official Analytical Chemists / 1995 / Official Methods of Analysis / AOAC., Washington D.C., USA
Causse MA / 1994 / Saturated molecular map of the rice genome based on an interspecific backcross population / Genetics 138 : 1251 ~ 1274
Cho SY / 1988 / Breeding Strategies for the 21st Century / Proceedings of the Annual Symposium of the Korean Breeding Society : 3 ~ 8
Amarawathi YL / 2008 / Mapping of quantitative trait loci for basmati quality traits in rice / Mol. Breeding 21 : 49 ~ 65
Association of Official Analytical Chemists / 1995 / Official Methods of Analysis / AOAC., Washington D.C., USA
Causse MA / 1994 / Saturated molecular map of the rice genome based on an interspecific backcross population / Genetics 138 : 1251 ~ 1274
Cho SY / 1988 / Breeding Strategies for the 21st Century / Proceedings of the Annual Symposium of the Korean Breeding Society : 3 ~ 8
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