Quantitative Trait Locus Analysis for Cold Tolerance at the Booting Stage in a Rice Cultivar, Hatsushizuku

JARQ : Japan Agricultural Research Quarterly
ISSN 00213551
書誌レコードID(総合目録DB) AA0068709X
本文フルテキスト
43-02-05.pdf740.22 KB

We evaluated cold tolerance at the booting stage on the basis of seed fertility after cool-water treatment for three years (2005-2007) in 114 recombinant inbred lines (RILs) between temperate japonicas, Kirara397 (cold-sensitive) and Hatsushizuku (cold-tolerant). Composite interval mapping (CIM) was performed to identify quantitative trait locus (QTL) for cold tolerance. A QTL for cold tolerance at the booting stage was reproducibly detected in three trials on chromosome 1. Contribution of the QTL to the phenotypic variation ranged from 16.2 to 47.3%, and their additive effects were all towards Hatsushizuku. We also analyzed QTL for heading time and culm length, which are thought to affect cold tolerance. A QTL for heading time and that for culm length was detected every three years on the neighboring regions of chromosome 10, while no QTL for the two traits was detected on chromosome 1. These results suggest that the QTL on chromosome 1 has a major effect on the variation of cold tolerance between Kirara397 and Hatsushizuku without affecting heading time and culm length.

刊行年月日
作成者 KUROKI Makoto SAITO Koji MATSUBA Shuichi YOKOGAMI Narifumi SHIMIZU Hiroyuki ANDO Ikuo SATO Yutaka
著者キーワード

composite interval mapping (CIM)

QTL

simple sequence repeat (SSR)

公開者 Japan International Research Center for Agricultural Sciences
オンライン掲載日
国立情報学研究所メタデータ主題語彙集(資源タイプ) Journal Article
43
2
開始ページ 115
終了ページ 121
DOI 10.6090/jarq.43.115
権利 Japan International Research Center for Agricultural Sciences
言語 eng

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