qEMF3, a novel QTL for the early-morning flowering trait from wild rice, Oryza officinalis, to mitigate heat stress damage at flowering in rice, O. sativa

Hirabayashi, Hideyuki; Sasaki, Kazuhiro; Kambe, Takashi; Gannaban, Ritchel B.; Miras, Monaliza A.; Mendioro, Merlyn S.; Simon, Eliza Vie; Lumanglas, Patrick D.; Fujita, Daisuke; Takemoto-Kuno, Yoko; Takeuchi, Yoshinobu; Kaji, Ryuji; Kondo, Motohiko; Kobayashi, Nobuya; Ogawa, Tsugufumi; Andó, István; Jagadish, Krishna S.V.; Ishimaru, Tsutomu

doi:10.1093/jxb/eru474

Cited by 124 publications

(117 citation statements)

References 31 publications

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“…An nIL carrying qEMF3 was developed in the genetic background of nanjing 11 and then qEMF3 was transferred to the genetic background of IR64. nILs carrying qEMF3 had earlier FoT by 1.5-2.0 h than recurrent parents (Hirabayashi et al, 2015). It is remarkable that the EMF phenotype was observed in both temperate and tropical climates, and in two genetic backgrounds of Indica cultivars, whereas none of the popular cultivars in the tropics and subtropics had the EMF trait (Hirabayashi et al, 2015).…”

Section: Genetic Variation In Heat Tolerance To Wbcgmentioning

confidence: 93%

“…In fact, Hirabayashi et al (2015) revealed that the differences in peak FoT of 23 popular cultivars in the tropics and subtropics were only within 1.5 h. However, the wide variation in FoT among wild rice accessions is known (Sheehy et al, 2007). For example, some accessions of Oryza eichingeri and O. officinalis show early-morning flowering (EMF) phenotypes, an accession of O. australiensis shows late-afternoon flowering phenotype, and an accession of O. alta shows midnight flowering phenotype (Sheehy et al, 2007).…”

Section: Reports On the Actual Damage By Heat Stress On Spikelet Fertmentioning

confidence: 99%

“…For example, some accessions of Oryza eichingeri and O. officinalis show early-morning flowering (EMF) phenotypes, an accession of O. australiensis shows late-afternoon flowering phenotype, and an accession of O. alta shows midnight flowering phenotype (Sheehy et al, 2007). The shift in FoT to a time at cooler temperature was demonstrated to be effective for escaping from heat stress at flower opening (Hirabayashi et al, 2015;Ishimaru et al, 2010Ishimaru et al, , 2012. The variation in FoT among wild rice accessions could be useful genetic resources to adjust FoT of rice cultivars to the appropriate time of day to retain high fertility under heat stress.…”

Section: Reports On the Actual Damage By Heat Stress On Spikelet Fertmentioning

confidence: 99%

“…Three QTLs for EMF were detected on chromosomes 4, 5, and 10, indicating that the alleles of O. rufipogon shifted FoT to 30 min earlier than nipponbare (Thanh et al, 2010). Another attempt was made by Hirabayashi et al (2015), using O. officinalis as a donor parent. The introgression lines (ILs) of O. officinalis were developed by interspecific hybridization between O. sativa (AA genome) and a wild rice, O. officinalis Wall ex Watt (CC genome) (Masumizu et al, 2007).…”

Section: Genetic Variation In Heat Tolerance To Wbcgmentioning

confidence: 99%

“…As a conclusion, EMF20 was determined as the best donor among ILs of O. officinalis to be crossed with O. sativa. A mapping population derived from a cross between nanjing 11 and EMF20 was developed (Hirabayashi et al, 2015). In both the F 2 and F 3 populations, the EMF20 alleles of QTLs on chromosomes 3 and 8 advanced FoT to early in the morning; these two QTLs were designated as qEMF3 and qEMF8.…”

Section: Genetic Variation In Heat Tolerance To Wbcgmentioning

confidence: 99%

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Breeding efforts to mitigate damage by heat stress to spikelet sterility and grain quality

Ishimaru

Hirabayashi

Sasaki

et al. 2016

Plant Production Science

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Global warming is predicted to aggravate the risk of unstable crop production. It is of great concern that damage to rice spikelet sterility and grain quality will increase, resulting in yield and economic losses. To secure the global food supply and farmers' income, the development of rice cultivars with heat resilience is a pressing concern. Regarding spikelet sterility, rice cultivars with heat tolerance at different growth stages have been identified in recent years. The early-morning flowering (EMF) trait is effective in heat escape because it shifts the time of day of flowering to earlier in the morning when it is cooler. Although varietal differences are very small, there are some genetic resources for EMF in wild rice accessions. Regarding heat-induced grain chalkiness, heat-tolerant Japonica-type cultivars for mitigating white-back type of chalky grains (WBCG) were found. Quantitative trait loci for heat tolerance at flowering, EMF, and for WBCG in grain quality have been mapped on the rice chromosomes. Further genetic efforts have been successfully connected to the development of near-isogenic lines for each trait with tagged molecular markers. These breeding materials are quite unique and useful in facilitating marker-assisted breeding toward the development of heat-resilient rice in terms of spikelet sterility and grain quality.

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Section: Genetic Variation In Heat Tolerance To Wbcgmentioning

confidence: 93%

Section: Reports On the Actual Damage By Heat Stress On Spikelet Fertmentioning

confidence: 99%

Section: Reports On the Actual Damage By Heat Stress On Spikelet Fertmentioning

confidence: 99%

Section: Genetic Variation In Heat Tolerance To Wbcgmentioning

confidence: 99%

Section: Genetic Variation In Heat Tolerance To Wbcgmentioning

confidence: 99%

See 3 more Smart Citations

Breeding efforts to mitigate damage by heat stress to spikelet sterility and grain quality

Ishimaru

Hirabayashi

Sasaki

et al. 2016

Plant Production Science

Self Cite

View full text Add to dashboard Cite

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Molecular Breeding for Improving Heat Stress Tolerance in Rice: Recent Progress and Future Perspectives

Buu¹,

Chan²,

Lang³

2021

Molecular Breeding for Rice Abiotic Stress Tolerance and Nutritional Quality

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Genetics and Breeding of Heat Tolerance in Rice

Ye¹,

Liao

Redoña

et al. 2021

Rice Improvement

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Extreme weather events, especially heat waves, have become more frequent with global warming. High temperature significantly affects world food security by decreasing crop yield. Rice is intensively planted in tropical and subtropical areas in Asia, where high temperature has become a major factor affecting rice production. Rice is sensitive to high temperature, especially at booting and flowering stages. Rice varieties tolerant of high temperature are rare, and only a few heat-tolerant rice varieties have been identified. High temperature at booting and flowering stages causes sterile pollen, decreased pollen shedding, and poor pollen germination, which finally lead to a yield decrease. Heat-tolerant QTLs have been identified in different studies, but new breeding lines with considerable heat tolerance have not been bred using identified heat-tolerance donors and QTLs. Research on heat-tolerant donor identification, QTL mapping, gene cloning, and large-scale phenotyping technology is important for developing heat-tolerant rice varieties.

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qEMF3, a novel QTL for the early-morning flowering trait from wild rice, Oryza officinalis, to mitigate heat stress damage at flowering in rice, O. sativa

Abstract: Highlight qEMF3, a novel QTL for the early-morning flowering trait to mitigate heat-induced spikelet sterility at flowering in rice, was identified using a wild rice, Oryza officinalis, as a genetic resource.

Cited by 124 publications

References 31 publications

Breeding efforts to mitigate damage by heat stress to spikelet sterility and grain quality

Breeding efforts to mitigate damage by heat stress to spikelet sterility and grain quality

Molecular Breeding for Improving Heat Stress Tolerance in Rice: Recent Progress and Future Perspectives

Genetics and Breeding of Heat Tolerance in Rice

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