Mapping quantitative trait loci for cold tolerance at the booting stage in rice by using chromosome segment substitution lines
文献类型： 外文期刊
作者： Lei, Jianguo 1 ; Zhu, Shan 1 ; Shao, Caihong 2 ; Tang, Shusheng 3 ; Huang, Renliang 4 ; Zhu, Changlan 1 ; Yan, Song;
作者机构： 1.Jiangxi Agr Univ, Key Lab Crop Physiol Ecol & Genet Breeding, Minist Educ, Nanchang 330045, Jiangxi, Peoples R China
2.Jiangxi Acad Agr Sci, Soil & Fertilizer & Resources & Environm Inst, Nanchang 330200, Jiangxi, Peoples R China
3.Jiangxi Acad Agr, Rice Res Inst, Jiangxi Prov Key Lab Rice Physiol & Genet, Rice Natl Engn Lab Nanchang, Nanchang 330200, Jiangxi, Peoples R China
4.Jiangxi Acad Agr, Rice Res Inst, Jiangxi Prov Key Lab Rice Physiol & Genet, Rice Natl Engn Lab Nanchang, Nanchang
关键词： CSSL; genetic map; phenotyping
期刊名称：CROP & PASTURE SCIENCE （ 影响因子：2.286； 五年影响因子：2.507 ）
ISSN： 1836-0947
年卷期： 2018 年 69 卷 3 期
页码：
收录情况： SCI
摘要： Low temperature at the booting stage in rice (Oryza sativa L.) can cause male sterility, resulting in yield losses. A set of chromosome segment substitution lines derived from the varieties Sasanishiki (cold-tolerant, ssp. japonica) and Habataki (cold-susceptible, ssp. indica) was used for analysis across two natural, low-temperature environments to study the genetic basis for cold tolerance at the booting stage. Spikelet fertility was used as the evaluation index for cold tolerance identification. Eight quantitative trait loci (QTLs) for cold tolerance were detected, two of which were located on chromosomes 3 (qCTSF3.1 and qCTSF3.2), and the others on chromosomes 4 (qCTSF4), 5 (qCTSF5), 6 (qCTSF6), 7 (qCTSF7), 8 (qCTSF8) and 9 (qCTSF9). The phenotypic variation explained by each QTL ranged from 5.4% to 25.3%. Of the eight QTLs, six (qCTSF3.2, qCTSF5, qCTSF6, qCTSF7, qCTSF8, qCTSF9) were repeatedly detected in two environments. QTLs qCTSF3.1, qCTSF7 and qCTSF9 overlapped with previously reported QTLs. All tolerant alleles for all QTLs were contributed by Sasanishiki.
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