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

スポンサーリンク

概要

• 論文の詳細を見る

• 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 <I>japonica</I>s, 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.

• 独立行政法人　国際農林水産業研究センターの論文

著者

• Yokogami Narifumi

  Rice Breeding Research Team Narc For Hokkaido Region

• KUROKI Makoto

  Crop Cold Tolerance Research Team, National Agricultural Research Center for Hokkaido Region (NARCH), National Agriculture and Food Research Organization (NARO)

• SAITO Koji

  Crop Cold Tolerance Research Team, National Agricultural Research Center for Hokkaido Region (NARCH), National Agriculture and Food Research Organization (NARO)

• MATSUBA Shuichi

  Rice Quality Research Team, NARCH, NARO

• SHIMIZU Hiroyuki

  Rice Breeding Research Subteam, NARCH, NARO

• ANDO Ikuo

  Marker-Assisted Rice Breeding Research Team, National Institute of Crop Science (NICS), NARO

• SATO Yutaka

  Crop Cold Tolerance Research Team, National Agricultural Research Center for Hokkaido Region (NARCH), National Agriculture and Food Research Organization (NARO)

• YOKOGAMI Narifumi

  Rice Breeding Research Subteam, NARCH, NARO

• Sato Yutaka

  Crop Breeding Research Division, NARO Hokkaido Agricultural Research Center

関連論文

• Effects of ferrous iron (Fe) on the germination and root elongation of paddy rice and weeds
• Quantitative Trait Locus Analysis for Cold Tolerance at the Booting Stage in a Rice Cultivar, Hatsushizuku

スポンサーリンク