Detection of Quantitative Trait Loci for Stickiness and Appearance Based on Eating Quality Test in japonica Rice Cultivar

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  • Tanaka Isao
    Fukui Prefecture Agricultural Experiment Station Present address: Fukui Prefecture Fukui General Office of Agriculture and Forestry
  • Kobayashi Asako
    Fukui Prefecture Agricultural Experiment Station
  • Tomita Katsura
    Fukui Prefecture Agricultural Experiment Station
  • Takeuchi Yoshinobu
    Institute of the Society for Techno-innovation of Agriculture, Forestry and Fisheries (STAFF) Present address: National Institute of Crop Science
  • Yamagishi Masumi
    Faculty of Life and Environmental Science, Shimane University Present address: Graduate School of Agriculture, Hokkaido University
  • Yano Masahiro
    National Institute of Agrobiological Resources (NIAR)
  • Sasaki Takuji
    National Institute of Agrobiological Resources (NIAR)
  • Horiuchi Hisamitsu
    Fukui Prefecture Agricultural Experiment Station

Bibliographic Information

Other Title
  • イネ日本型品種における食味の粘りおよび外観に関与する量的形質遺伝子座の検出
  • イネ ニホンガタ ヒンシュ ニ オケル ショクミ ノ ネバリ オヨビ ガイカン ニ カンヨ スル リョウテキ ケイシツ イデンシザ ノ ケンシュツ

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Abstract

Detection of quantitative trait loci (QTLs) for eating quality was performed using doubled haploid lines derived from crosses between two japonica rice cultivars, ‘Koshihikari’ and ‘Akihikari’. Eating quality was estimated based on the value obtained in the eating quality test, as well as on the amylose content of milled rice and glossiness of cooked rice in a beaker. Putative QTLs for stickiness based on the eating quality test were detected on chromosome 2 (near the DNA markers C370 and OPAJ13) and on chromosome 6 (R2171). ‘Koshihikari’ alleles increased the value of stickiness at these QTLs. Putative QTL for amylose content was detected on chromosome 2 (OPAJ13). ‘Koshihikari’ allele decreased the amylose content at this QTL. Putative QTL for glossiness of cooked rice was detected on chromosome 2 (C1137). ‘Koshihikari’ alleles increased the glossiness at these QTLs. As a result, it was suggested that the QTLs detected on chromosome 2 exert a significant influence on the eating quality of ‘Koshihikari’.<br>

Journal

  • Breeding Research

    Breeding Research 8 (2), 39-47, 2006

    Japanese Society of Breeding

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