Mapping quantitative trait loci controlling cool-temperature tolerance at booting stage in temperate japonica rice

被引：109

作者：

Takeuchi, Y ^{[1
]}

Hayasaka, H ^{[1
]}

Chiba, B ^{[1
]}

Tanaka, I ^{[1
]}

Shimano, T ^{[1
]}

Yamagishi, M ^{[1
]}

Nagano, K ^{[1
]}

Sasaki, T ^{[1
]}

Yano, M ^{[1
]}

机构：

[1] Inst Soc Technoinnovat Agr Forestry & Fisheries, Tsukuba, Ibaraki 3050854, Japan

来源：

BREEDING SCIENCE | 2001年 / 51卷 / 03期

关键词：

Oryza sativa L; cool-temperature tolerance; quantitative trait locus; doubled-haploid lines; linkage mapping;

D O I：

10.1270/jsbbs.51.191

中图分类号：

S3 [农学（农艺学）];

学科分类号：

0901 ;

摘要：

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.

引用

页码：191 / 197

页数：7

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