Identification of quantitative trait loci controlling cold tolerance at the reproductive stage in Yunnan landrace of rice, Kunmingxiaobaigu

Dai, Luyuan, Lin, Xinghua, Ye, Changrong, Ise, Kazuo, Saito, Koji, Kato, Akira, Xu, Furong, Yu, Tengqiong and Zhang, Duanpin (2004) Identification of quantitative trait loci controlling cold tolerance at the reproductive stage in Yunnan landrace of rice, Kunmingxiaobaigu. Breeding Science, 54 3: 253-258. doi:10.1270/jsbbs.54.253


Author Dai, Luyuan
Lin, Xinghua
Ye, Changrong
Ise, Kazuo
Saito, Koji
Kato, Akira
Xu, Furong
Yu, Tengqiong
Zhang, Duanpin
Title Identification of quantitative trait loci controlling cold tolerance at the reproductive stage in Yunnan landrace of rice, Kunmingxiaobaigu
Journal name Breeding Science   Check publisher's open access policy
ISSN 1344-7610
Publication date 2004
Sub-type Article (original research)
DOI 10.1270/jsbbs.54.253
Open Access Status DOI
Volume 54
Issue 3
Start page 253
End page 258
Total pages 6
Place of publication Tokyo, Japan
Publisher Japanese Society of Breeding
Language eng
Subject 0703 Crop and Pasture Production
0701 Agriculture, Land and Farm Management
Abstract This study focused on a Yunnan landrace of rice, Kunmingxiaobaigu, to identify quantitative trait loci (QTLs) controlling cold tolerance at the reproductive stage using DNA markers. A linkage map with 16 linkage groups covering 1,354.4 cM with a total of 122 markers was constructed based on an F-2 population consisting of 250 individuals of a cross between Kunmingxiaobaigu and a Japanese variety, Towada. Nine QTLs were detected by interval mapping in the F-2 population. The nine QTLs were distributed on chromosomes 1 (2 QTLs), 3, 4, 6 (2 QTLs), 7, 10 and 12. The total variance explained by these nine QTLs was 54.2%, while the variance explained by a single QTL ranged from 5.0% to 37.8%. The validity of four QTLs on chromosomes 3, 6 (2 QTLs) and 7 was confirmed by single-marker analysis in the F-3 population and they were designated as qRCT3, qRCT6a, qRCT6b and qRCT7, respectively. The QTLs qRCT3, qRCT6a and qRCT6b were reported here for the first time. The QTL qRCT7 displayed the largest effect, reaching a value of 20.6%.
Keyword Agronomy
Plant Sciences
Oryza sativa L.
cold tolerance
Kunmingxiaobaigu
quantitative trait loci (QTLs)
reproductive stage
Oryza-sativa L.
Booting Stage
Cool Tolerance
Molecular Map
Linkage Map
Polymorphism
Population
Varieties
Location
Hokkaido
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status Unknown

Document type: Journal Article
Sub-type: Article (original research)
Collections: Excellence in Research Australia (ERA) - Collection
School of Agriculture and Food Sciences
 
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Created: Fri, 25 Jan 2008, 16:22:55 EST