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
오류제보하기
The rice recombinant inbred lines derived from Hanareum2 and Unkwang (HURILs) cross were used in genetic mapping and QTL analysis studies using the inclusive composite interval mapping (ICIM) method. In this study, we constructed the genetic map using 241 SNP markers based on the SNPs in the whole genome region between these varieties. As a result, the total genetic distance and average distances were 1,142 cM and 4.7 cM, respectively. Both heading date and plant height are important traits related to grain yield in rice. Twelve heading date QTLs were detected under natural condition in Korea. A major QTL qDTH3-2 for heading date and qCL1-2 for plant height explained 25.8~27.4% and 30.8~56.9% of the phenotypic variations in the HURIL populations. Four panicle traits, grain number (GN), panicle length (PL), number of panicle per plant (NPP), grain filling ratio (GFR) were evaluated for QTL effects in HURILs population during two years. Results showed that a total of twelve QTLs for GN, PL, NPP, and GFR were detected on chromosome 2, 3, 4, 6, 7, 8. A major QTL qGNP4 for GN was detected in HURIL populations with LOD score 7.7-19.3 and explained 6.7-17.69% of phenotypic variations. Twenty-five QTLs for the four traits TGW, GL, GW, and GT were identified in the HURIL populations for two years (2014~2015). The three QTLs, qTGW8, qGL8-2, and qGW8-2, shared the same interval between id8007093 and id8007764 on chromosome 8 with explained 4.8-4.1%, 4.2-6.8%, and 5.3-10.5% of phenotypic variations, respectively. Furthermore, two QTLs, qTGW3-2 and qGL3-2, were detected in the same chromosomal interval at the same position. These findings will benefit breeding design for development of high yielding variety in rice.
목차
등록된 정보가 없습니다.
참고문헌 (36)
참고문헌 신청
Abe Y / 2010 / The SMALL AND ROUND SEED1(SRS1/DEP2)gene is involved in the regulation of seed size in rice / Genes Genet Sys 85:327~339
Ashikari M / 2005 / Cytokinin oxidase regulates rice grain production / Science 309:741~745
Dong X / 2013 / Identification and characterization of OsEBS, a gene involved in enhanced plant biomass and spikelet number in rice / Plant Biotech J 11:1044~1057
Fan C / 2006 / GS3, a major QTL for grain length and weight and minor QTL for grain width and thickness in rice, encodes a putative transmembrane protein / Theor Appl Genet 112:1164~1171
Fujita D / 2013 / NAL1 allele from a rice landrace greatly increases yield in modern indica cultivars / Proc Natl Acad Sci USA 110:20431~20436
Ashikari M / 2005 / Cytokinin oxidase regulates rice grain production / Science 309:741~745
Dong X / 2013 / Identification and characterization of OsEBS, a gene involved in enhanced plant biomass and spikelet number in rice / Plant Biotech J 11:1044~1057
Fan C / 2006 / GS3, a major QTL for grain length and weight and minor QTL for grain width and thickness in rice, encodes a putative transmembrane protein / Theor Appl Genet 112:1164~1171
Fujita D / 2013 / NAL1 allele from a rice landrace greatly increases yield in modern indica cultivars / Proc Natl Acad Sci USA 110:20431~20436
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