Mapping Quantitative Trait Loci Controlling Cool-temperature Tolerance at Booting Stage in Temperate Japonica Rice.

  • Takeuchi Yoshinobu
    Institute of the Society for Techno-innovation of Agriculture, Forestry and Fisheries
  • Hayasaka Hiroshi
    Miyagi Prefecture Furukawa Agricultural Experiment Station
  • Chiba Bunya
    Miyagi Prefecture Furukawa Agricultural Experiment Station
  • Tanaka Isao
    Fukui Prefecture Agricultural Experiment Station
  • Shimano Tomotoshi
    Institute of the Society for Techno-innovation of Agriculture, Forestry and Fisheries
  • Yamagishi Masumi
    Research Institute of Agricultural Resources, Ishikawa Agricultural College Present address: Faculty of Life and Environmental Science, Shimane University
  • Nagano Kuniaki
    Miyagi Prefecture Furukawa Agricultural Experiment Station
  • Sasaki Takuji
    National Institute of Agrobiological Sciences
  • Yano Masahiro
    National Institute of Agrobiological Sciences

この論文をさがす

説明

To identify the chromosomal regions controlling cool-temperature tolerance (CT) at booting stage of rice (Oryza sativa 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.

収録刊行物

被引用文献 (22)*注記

もっと見る

参考文献 (42)*注記

もっと見る

詳細情報 詳細情報について

問題の指摘

ページトップへ