Estimation of Cool-Weather Tolerance at the Flowering Stage and its Relationship with that of the Booting Stage in Hokkaido Rice Varieties.

Tanno, Hisashi; Kinoshita, M.; Kiuchi, Hitoshi; Hirayama, Yuji; Kikuchi, Harumi

doi:10.1626/jcs.69.493

Cited by 6 publications

(4 citation statements)

References 1 publication

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“…In the sterility caused by low temperature, the growth stages sensitive to cold are the booting stage and the flowering stage (Tanno et al 2000). However, in previous studies, cold tolerance was analyzed only at the booting stage for technical reasons (Takeuchi et al 2001, Andaya andMackill 2003).…”

Section: Discussionmentioning

confidence: 99%

Identification of Quantitative Trait Loci Controlling Cold Tolerance at the Reproductive Stage in Yunnan Landrace of Rice, Kunmingxiaobaigu

Dai

Lin

et al. 2004

Breed. Sci.

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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 %.

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Section: Discussionmentioning

confidence: 99%

Identification of Quantitative Trait Loci Controlling Cold Tolerance at the Reproductive Stage in Yunnan Landrace of Rice, Kunmingxiaobaigu

Dai

Lin

et al. 2004

Breed. Sci.

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“…Previously, a wide phenotypic variation for CTF was demonstrated among rice cultivars from Hokkaido ( Shinada et al 2013 , Tanno et al 2000 ). Characterizing haplotype patterns of the three QTL regions in these cultivars can help to determine the allelic distribution in different CTF sources and aid in the choice of vigorous CTF parents for future QTL mapping studies and breeding programs.…”

Section: Discussionmentioning

confidence: 99%

“…Vigorous cold tolerance at the fertilization stage (CTF) is a very important characteristic for stable rice production in cold temperature conditions in higher latitude or higher altitude areas. Variations in CTF levels have been reported among rice cultivars from Hokkaido ( Shinada et al 2013 , Tanno et al 2000 ). Pollen maturation, pollen germination and pollen tube elongation were shown to be involved in the control of CTF levels ( Shinada et al 2013 ).…”

Section: Introductionmentioning

confidence: 99%

QTL pyramiding for improving of cold tolerance at fertilization stage in rice

et al. 2014

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Vigorous cold tolerance at the fertilization stage (CTF) is a very important characteristic for stable rice production in cold temperature conditions. Because CTF is a quantitatively inherited trait, pyramiding quantitative trait loci (QTLs) using marker-assisted selection (MAS) is effective for improving CTF levels in rice breeding programs. We previously identified three QTLs controlling CTF, qCTF7, qCTF8 and qCTF12, using backcrossed inbred lines derived from a cross between rice cultivar Eikei88223 (vigorous CTF) and Suisei (very weak CTF). However, pyramiding of these QTLs for the application of MAS in practical rice breeding programs have not yet been elucidated. In this study, we examined the effect of pyramiding QTLs for improvement of CTF level using eight possible genotype classes from the 152 F3 population derived from a cross between Eikei88223 and Suisei. Increasing of CTF levels in combinations between qCTF7 and qCTF12 and between qCTF8 and qCTF12 were detected. Furthermore, we compared the haplotype pattern around the QTLs for CTF among the rice cultivars from Hokkaido. These results are useful for improvement of new cultivars with high CTF levels using MAS and identification of genetic resources with the novel QTL(s) for CTF.

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“…In the temperature-controlled greenhouse facility, evaluation of cold tolerance at the booting stage was carried out according to the method provided by [24]. Sixteen germinated seeds of the 139 RILs and their parents were sown in a Wagner pot (175 mm width and 200 mm height) and grown under natural conditions.…”

Section: Phenotyping Of Cold Tolerancementioning

confidence: 99%

Identification of Quantitative Trait Loci for Spikelet Fertility at the Booting Stage in Rice (Oryza sativa L.) under Different Low-Temperature Conditions

Jeong

Hyun

et al. 2020

Agronomy

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Cold stress in rice is a critical factor limiting growth and yield in temperate regions. In this study, we identified quantitative trait loci (QTL) conferring cold tolerance during the booting stage using a recombinant inbred line population derived from a cross between a cold-susceptible Tongil-type cultivar Milyang23 and a cold-tolerant japonica cultivar Giho. A phenotypic evaluation was performed in a cold-water-irrigated field (17 °C) and a temperature-controlled (17 °C/17 °C air and water) greenhouse at the booting stage. Four QTL, including two on chromosome 1 and one each on chromosomes 6 and 9, were identified in the cold-water-irrigated field, with an R2 range of 6.3%–10.6%. Three QTL, one on each of chromosomes 2, 6 and 9, were identified under the temperature-controlled greenhouse condition, with an R2 range of 5.7%–15.1%. Among these, two QTL pairs on chromosomes 6 (qSFF6 and qSFG6) and 9 (qSFF9 and qSFG9) were detected in the cold treatments of both field and greenhouse screenings. Our results provide a reliable dual-screening strategy for rice cold tolerance at the booting stage.

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Estimation of Cool-Weather Tolerance at the Flowering Stage and its Relationship with that of the Booting Stage in Hokkaido Rice Varieties.

Cited by 6 publications

References 1 publication

Identification of Quantitative Trait Loci Controlling Cold Tolerance at the Reproductive Stage in Yunnan Landrace of Rice, Kunmingxiaobaigu

Identification of Quantitative Trait Loci Controlling Cold Tolerance at the Reproductive Stage in Yunnan Landrace of Rice, Kunmingxiaobaigu

QTL pyramiding for improving of cold tolerance at fertilization stage in rice

Identification of Quantitative Trait Loci for Spikelet Fertility at the Booting Stage in Rice (Oryza sativa L.) under Different Low-Temperature Conditions

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