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한국식물학회 / v.52, no.3, 2009년, pp.259-267 
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( Genetic Relationships Among Panicle Characteristics of Rice (Oryza sativa L.) Using Unconditional and Conditional QTL Analyses ) |
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| 초 록 |
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| Using mixed-modeI-based composite interval mapping and conditional statistical methods, we studied quantitative trait loci (QTLs) with epistatic effects and QTLs by environment interaction effects for rice seed set percent (SSP), filled grain number per plant (FGP), and panicle length (PL). A population of 241 recombinant inbred lines was used which was derived from a cross between "Zhenshan 97" and "Minghui 63." Its linkage map included 221 molecular markers. Our QTL analysis detected 28, 25, and 32 QTLs for SSP, FGP, and PL, respectively. Each QTL explained $1.37%{sim}13.19%$ of the mean phenotypic variation. A comparison of conventional and conditional mapping provided information about the genetic control system involved in the synthetic process of SSP, FGP, and PL at the level of individual QTLs. Conditional QTLs with reduced (or increased) effects were identified for SSP, which were significantly influenced by FGP or PL. Some QTLs could express independently for the given traits, thereby providing possibilities for simultaneous improvement of SSR and PL, and SSR and FGP. Epistasis was more sensitive to environmental conditions than were additive effects. |
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| 키워드 |
| Conditional mapping;Panicle characteristics;Quantitative trait locus (QTL);Rice;Unconditional analysis; |
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Journal of Plant Biology / v.52, no.3, 2009년, pp.259-267
한국식물학회
ISSN : 1226-9239
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO200923160549896)
언어 : 영어 |
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| 논문 제공 : KISTI 한국과학기술정보연구원 |
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