Mapping Quantitative Trait Loci Controlling Cool-temperature Tolerance at Booting Stage in Temperate Japonica Rice
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概要
- 論文の詳細を見る
To identify the chromosomal regions controlling cool-temperature tolerance(CT)at booting stage of rice(Oryzasativa L.), we performed quantitative trait locus(QTL)analysis with doubled-haploid lines(DHLs). We constructed a linkage map with 135 restriction fragment length polymorphism(RFLP)markers and 34 random amplified polymorphic DNA(RAPD)markers using 212 DHLs derived from crosses between two cultivars, Akihikari(moderately cool-temperature susceptible)and Koshihikari(cool-temperature tolerant). Both parental cultivars belong to the temperate japonica group. The degree of tolerance of each DHL was measured as the degree of sterility in the field with a running cold-water system. Three QTLs were mapped one each to chromosomes 1, 7, and 11. The QTL with the largest effect, qCT-7, was mapped to chromosome 7 and explained 22.1% of the total phenotypic variation. The other two QTLs, qCT-1 and qCT-11, explained approximately 5% each. For all of the QTLs, alleles from Koshihikari increased the degree of CT. We also mapped QTLs for heading date and culm length, which are thought to affect CT.
- 日本育種学会の論文
著者
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SASAKI Takuji
National Institute of Agrobiological Sciences
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Yano Masahiro
National Institute of Agrobiological Resources
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Yano Masahiro
National Inst. Agrobiological Sci. Ibaraki Jpn
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Yano Masahiro
National Institute Of Agrobiological Sciences
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YAMAGISHI Masumi
Research Faculty of Agriculture, Hokkaido University
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Takeuchi Yoshinobu
Institute of the Society for Techno-innovation of Agriculture, Forestry and Fisheries
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Nagano Kuniaki
Miyagi Prefectural Furukawa Agricultural Experiment Station
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Nagano K
Miyagi Prefecture Furukawa Agricultural Experiment Station
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Nagano Kuniaki
Miyagi Prefectural Furukawa Agric. Exp. Stn.
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Hayasaka Hiroshi
Miyagi Prefecture Furukawa Agricultural Experiment Station
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Chiba Bunya
Miyagi Prefecture Furukawa Agricultural Experiment Station
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Tanaka Isao
Fukui Prefecture Agricultural Experiment Station
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Shimano Tomotoshi
Institute of the Society for Techno-innovation of Agriculture, Forestry and Fisheries
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Takeuchi Yoshinobu
Institute Of The Society For Techno-innovation Of Agriculture Forestry And Fisheries
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Chiba Bunya
Miyagi Prefectural Furukawa Agric. Exp. Stn.
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Yamagishi Masumi
Research Faculty Of Agriculture Hokkaido University
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Yamagishi Masumi
Research Institute Of Agricultural Resources Ishikawa Agricultural College:faculty Of Life And Envir
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Shimano T
Institute Of The Society For Techno-innovation Of Agriculture Forestry And Fisheries
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Sasaki Takuji
Natl. Inst. Agrobiological. Resources
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Sasaki Takuji
National Institute Of Agrobiological Resources
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