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| 1 | Quantitative trait loci for Fusarium head blight resistance in wheat cultivars Yangmai 158 and Zhengmai 9023显示文摘Fusarium head blight(FHB)is one of the prevalent fungal diseases of wheat worldwide.Exploring new FHB resistance quantitative trait loci(QTL)in adapted wheat cultivars is a critical step for breeding new FHB-resistant cultivars.In this study,we developed a population of 236 F5:7 recombinant inbred lines(RILs)using two popular Chinese wheat cultivars,Yangmai 158 and Zhengmai 9023,with moderate FHB resistance to identify the QTL for FHB type II resistance.This population was evaluated for percentage of symptomatic spikelets per spike(PSS)using single floret injection in repeated greenhouse experiments.Mean PSSs were 33.2%for Yangmai 158 and 30.3%for Zhengmai 9023.A genetic linkage map of 1002 single nucleotide polymorphisms(SNPs)generated by genotyping-by-sequencing(GBS)was constructed for the RIL population.Six QTL were identified for FHB resistance,and three of them were repeatable in the both experiments.Zhengmai 9023 contributed the resistance allele at one repeatable QTL,designated as Qfhb.7D,whereas Yangmai 158 contributed the resistance alleles at the other two repeatable QTL,Qfhb.3AL and Qfhb.2DS.The additional QTL,Qfhb.4AS was significant in the mean PSS,and Qfhb.2DL and Qfhb.7AS were significant in only one experiment.Replacement of each allele individually at the three repeatable QTL significantly changed PSSs.Qfhb.3AL,Qfhb.2DS,and Qfhb.7D explained 8.35%to 9.89%,5.13%to 7.43%,and 6.15%to 9.32%of the phenotypic variations,respectively.The three repeatable QTL contributed by the two parents were additive and stacking the resistance alleles from all the three repeatable QTL showed the highest level of resistance in the current RIL population.Ten SNPs in the QTL regions of Qfhb.3AL,Qfhb.2DS,and Qfhb.7D were converted into KBioscience competitive allele-specific PCR(KASP)assays.One KASP marker for Qfhb.3AL was validated in a panel of wheat cultivars from China.Some of these KASP markers could be useful for marker-assisted selection to stack these QTL. | Pingping Zhang Chenjin Guo Zhao Liu Amy Bernardo Hongxiang Maa Hongxiang Ma Peng Jiang Guicheng Song Guihua Bai | 2021 | The Crop Journal2021，9，1： | 8 |
| 2 | The effects of high-temperature stress on the germination of pollen grains of upland cotton during square development显示文摘 | Song Guicheng Chen Quanzhan Tang Canming | 2014 | Euphytica2014，200，2： | 1 |
| 3 | Anther response to high-temperature stress during development and pollen thermotolerance heterosis as revealed by pollen tube growth and in vitro pollen vigor analysis in upland cotton显示文摘 | Song Guicheng Wang Miaomiao Zeng Bin | 2015 | Planta2015，241，5： | 1 |
| 4 | Pollen thermotolerance of upland cotton related to anther structure and HSP expression显示文摘 | Song Guicheng Jiang Chenliang Ge Xiaoyang | 2015 | Agronomy Journal2015，107，4： | 1 |
| 5 | Effects of CeCl_3 and LaCl_3 on callus and root induction and the physical response of tobacco tissue culture显示文摘La^(3+) and Ce^(3+) have positive effects on plant growth and production. Although it is well known that rare earth elements promote cell growth. the biological effects of La^(3+) and Ce^(3+) on callus, shoot and root induction in tobacco are still unclear. The relationships among callus induction, rooting, enzyme activities and stomatal characteristics in tobacco are unknown. The objectives of this study were to identify the relationships between the induction of calluses, shoots, roots, stomata and enzyme activities. The induction percentages of calluses, buds, roots were recorded at 5,10,15, 20 and 25 days after La^(3+) and Ce^(3+) treatments. Peroxidase isoenzyme activity was determined by electrophoresis. The characteristics of the stomata were observed under an optical microscope. Our results show that low concentrations of Ce^(3+)(<15 mg/L) result in increases in the induction percentages of calluses,buds and roots, but La^(3+)(>5 mg/L) inhibits the induction of calluses, buds and roots. There are more peroxidase isoenzyme bands in Ce^(3+) treatments than in La^(3+) treatments. This is consistent with the induction percentages of calluses,buds and roots in Ce^(3+) and La^(3+) treatments. High enzyme activities may promote the induction of calluses, buds and roots. The stomata area and stomata number of leaves are significantly different between La^(3+) treatments and Ce^(3+) treatments. La^(3+) improves the stomata area and number. Based on these results, we speculate that La^(3+) may promote the development of the photosynthetic system. Ce^(3+)may promote tobacco growth and rooting by improving enzyme activities. | Guicheng Song Pingping Zhang Gaoling Shi Huadun Wang Hongxiang Ma | 2018 | Journal of Rare Earths2018，36，4： | 0 |
| 6 | Epidemiological and Clinical Characteristics of COVID-19 in Adolescents and Young Adults显示文摘BACKGROUND Adolescents and young adults might play a key role in the worldwide spread of Coronavirus Disease 2019(COVID-19)because they are more likely to be involved in overseas study,business,work,and travel.However,the epidemiological and clinical characteristics remain unknown. | Jiaqiang Liao Shibing Fan Jing Chen Jianglin Wu Shunqing Xu Yuming Guo Chunhui Li Xianxiang Zhang Chuansha Wu Huaming Mou Chenxi Song Feng Li Guicheng Wu Jingjing Zhang Lian Guo Huawen Liu Jinglong Lv Lixin Xu Chunhui Lang | 2020 | The Innovation2020，1，1： | 0 |
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