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Natural alleles of a uridine 5'-diphospho-glucosyltransferase gene responsible for differential endosperm development between upland rice and paddy rice

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Journal of Integrative Plant Biology 2022年第1期64卷 135-148页

作者： Zihao Wu Xiao Zhang Guimei Chang Jun Yang Jinpeng Wan Feijun Wang dayun tao Jiawu Zhou Lianguang Shang Peng Xu Diqiu Yu School of Life Sciences University of Science and Technology of ChinaHefei 230027China CAS Key Laboratory of Tropical Plant Resources and Sustainable Use Xishuangbanna Tropical Botanical Gardenthe Chinese Academy of SciencesKunming 650223China Yunnan Key Laboratory for Rice Genetic Improvement Food Crops Research InstituteYunnan Academy of Agricultural SciencesKunming 650200China The Innovative Academy of Seed Design Chinese Academy of SciencesMengla 666303China Shenzhen Branch Guangdong Laboratory of Lingnan Modern Agricultural and Rural AffairsAgricultural Genomics Institute at ShenzhenChinese Academy of Agricultural SciencesShenzhen 518000China Center of Economic Botany Core Botanical GardensChinese Academy of SciencesMergla 666303China State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan Yunnan UniversityKunming 650091China

Traditional upland rice generally exhibits insufficient grains resulting from abnormal endosperm development compared to paddy rice. However, the underlying molecular mechanism of this trait is poorly understood. Here,we cloned the uridine 5’-diphospho(UDP)-glucosyltransferase gene EDR1(Endosperm Development in Rice) responsible for differential endosperm development between upland rice and paddy rice by performing quantitative trait loci analysis and map-based cloning. EDR1 was highly expressed in developing seeds duringgrain filling. Natural variations in EDR1 significantly reduced the UDP-glucosyltransferase activity of EDR1 YZNcompared to EDR1 YD1,resulting in abnormal endosperm development in the near-isogenic line, accompanied by insufficient grains and changes in grain quality.By analyzing the distribution of the two alleles EDR1 YD1 and EDR1 YZNamong diverse paddy rice and upland rice varieties, we discovered that EDR1 was conserved in upland rice, but segregated in paddy rice. Further analyses of grain chalkiness in the alleles of EDR1 YD1 and EDR1 YZNvarieties indicated that rice varieties harboring EDR1 YZNand EDR1 YD1 preferentially showed high chalkiness, and low chalkiness,respectively. Taken together, these results suggest that the UDP-glucosyltransferase gene EDR1 is an important determinant controlling differential endosperm development between upland rice and paddy rice.

关键词： EDR1 endosperm development grain quality UDP-glucosyltransferase upland rice

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Mapping and breeding value evaluation of a semi-dominant semidwarf gene in upland rice

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Plant Diversity 2018年第5期40卷 238-244页

作者： Xiaoqian Chen Peng Xu Jiawu Zhou dayun tao Diqiu Yu Key Laboratory of Tropical Plant Resources and Sustainable Use Xishuangbanna Tropical Botanical Garden Chinese Academy of Sciences KunmingYunnan. 650223 China University of Chinese Academy of Sciences Beijing 100049 China Food Crops Research Institute Yunnan Academy of Agricultural Sciences (YAAS) Kunming 650200 China

Plant height is an important trait related to yield potential and plant architecture.A suitable plant height plays a crucial role in improvement of rice yield and lodging resistance.In this study,we found that the traditional upland landrace 'Kaowenghan'(KWH) showed a special semi-dwarf phenotype.To identify the semi-dwarf gene from KWH,we raised BC2 F4 semi-dwarf introgression lines(IL) by hybridization of the japonica rice cultivar 'Dianjingyou1'(DJY1) and KWH in a DJY1 background.The plant height of the homozygous semi-dwarf IL(IL-87) was significantly reduced compared with that of DJY1.The phenotype of the F1 progeny of the semi-dwarf IL-87 and DJY1 showed that the semi-dwarf phenotype was semidominant.QTL mapping indicated that the semi-dwarf phenotype was controlled by a major QTL q DH1 and was localized between the markers RM6696 and RM12047 on chromosome 1.We also developed near-isogenic lines(NIL) from the BC3 F3 population,and found that the yield of homozygous NIL(NIL-2)was not significantly different compared to DJY1.Breeding value evaluation through investigation of the plant height of the progeny of NIL(NIL-2) and cultivars from different genetic background indicate that the novel semi-dwarf gene shows potential as a genetic resource for rice breeding.

关键词：水稻植物生态系统生态建设

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A hybrid sterile locus leads to the linkage drag of interspecific hybrid progenies

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Plant Diversity 2020年第5期42卷 370-375页

作者： Mianmian Wang Jun Yang Jinpeng Wan dayun tao Jiawu Zhou Diqiu Yu Peng Xu Key Laboratory of Tropical Plant Resources and Sustainable Use Xishuangbanna Tropical Botanical GardenChinese Academy of SciencesKunming650223YunnanChina University of Chinese Academy of Sciences Beijing100049China Center of Economic Botany Core Botanical GardensChinese Academy of SciencesMenglunMengla666303YunnanChina Yunnan Key Laboratory for Rice Genetic Improvement Food Crops Research InstituteYunnan Academy of Agricultural SciencesKunming650200YunnanChina

Interspecific hybridization plays an important role in rice breeding by broadening access to desirable traits such as disease resistance and improving yields.However,interspecific hybridization is often hindered by hybrid sterility,linkage drag,and distorted segregation.To mine for favorable genes from Oryza glaberrima,we cultivated a series of BC4 introgression lines(ILs)of O.glaberrima in the japonica rice variety background(Dianjingyou 1)in which the IL-2769(BC4F10)showed longer sterile lemmas,wider grains and spreading panicles compared with its receptor parent,suggesting that linkage drag may have occurred.Based on the BC5F2 population,a hybrid sterility locus,S20,a long sterile lemma locus,G1-g,and a new grain width quantitative trait locus(QTL),qGW7,were mapped in the linkage region about 15 centimorgan(cM)from the end of the short arm of chromosome 7.The hybrid sterility locus S20 from O.glaberrima eliminated male gametes of Oryza sativa,and male gametes carrying the alleles of O.sativa in the heterozygotes were aborted completely.In addition,the homozygotes presented a genotype of O.glaberrima,and homozygous O.sativa were not produced.Surprisingly,the linked traits G1-g and qGW7 showed similar segregation distortion.These results indicate that S20 was responsible for the linkage drag.As a large number of detected hybrid sterility loci are widely distributed on rice chromosomes,we suggest that hybrid sterility loci are the critical factors for the linkage drag in interspecific and subspecific hybridization of rice.

关键词： Interspecific hybridization Linkage drag Hybrid sterility Segregation distortion

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Interspecific Hybrid Sterility in Rice Is Mediated by OgTPR 1 at the S 1 Locus Encoding a Peptidase- like Protein

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Molecular Plant 2017年第8期10卷 1137-1140页

作者： Yongyao Xie Peng Xu Jianle Huang Shengjian Ma Xianrong Xie dayun tao Letian Chen Yao-Guang Liu State Key Laboratory for Conservation and Utilization of Subtropical Agro- Bioresources Guangdong Provincial Key Laboratory of Protein Function and Regulation in Agricultural Organisms Key Laboratory of Plant Functional Genomics and Biotechnology of Guangdong Provincial Higher Education Institutions College of Life SciencesSouth China Agricultural University Guangzhou 510642 China Food Crops Research Institute Yunnan Academy of Agricultural Sciences Kunming 650200 China Xishuangbanna Tropical Botanical Garden Chinese Academy of Sciences Kunming 650200 China Lingnan Normal University Zhanjiang 524048 China

Dear Editor The Asian cultivated rice （Oryza sativa L. ssp japonica and ssp indica） is a staple food crop, and current rice breeding for the utilization of hybrid vigor （heterosis） mainly uses crosses within and between japonica and indica varieties （Chen and Liu, 2016）. However, another cultivated rice, African rice （Oryza glaberrima Steud）, has many important traits, such as tolerance to heat, drought, aluminum toxicity, and disease （Brar and Khush, 1997）. Hybrids from crosses between species, such as between African and Asian rice varieties, have stronger hybrid vigor and greater yield potential than those within subspecies;

关键词： SYSTEM DISTORTION MODEL

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Genome and Comparative Transcriptomics of African Wild Rice Oryza Iongistaminata Provide Insights into Molecular Mechanism of Rhizomatousness and Self-Incompatibility

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Molecular Plant 2015年第11期8卷 1683-1686页

作者： Yesheng Zhang Shilai Zhang Hui Liu Binying Fu Lijuan Li Min Xie Yue Song Xin Li Jing Cai Wenting Wan Ling Kui Hui Huang Jun Lyu Yang Dong Wensheng Wang Liyu Fluang Jing Zhang Qinzhong Yang Qinfi Shan Qiong Li Wangqi Huang dayun tao Muhua Wang Mingsheng Chen Yeisoo Yu Rod A. Wing Wen Wang Fengyi Hu State Key Laboratory of Genetic Resources and Evolution Kunming Institute of Zoology Chinese Academy of Sciences Kunming 650223 China Food Crops Research Institute Yunnan Academy of Agricultural Sciences Kunming 650205 China University of Chinese Academy of Sciences Beijing 100039 China Institute of Crop Sciences/National Key Facility for Crop Gene Resources and Genetic Improvement Chinese Academy of Agricultural Sciences Beijing 100081 China BGI-Shenzhen Shenzhen 518083 China Laboratory of Applied Genomics and Synthetic Biology College of LifeScience Kunming University of Science and Technology Kunming 650093 P. R. China Plant Germplasm and Genomics Center Germplasm Bank of Wild Species inSouthwest China Kunming Institute of Botany Chinese Academy of Sciences Kunming 650201 China Arizona Genomics of Institute School of Plant Sciences University of Arizona Tucson AZ 85721 USA State Key Laboratory of Plant Genomics Institute of Genetics and Developmental Biology Chinese Academy of Sciences Beijing 100101 China

Dear Editor, Oryza Iongistaminata is an African wild rice species with AA genome type possessing special traits that are highly valued for improving cultivated rice, such as strong resistance to biotic and abiotic stresses （Song et al., 1995） for improving resistance of cultivars, rhizomatousness for perennial breeding （Glover et al., 2010）, and self-incompatibility （SI） for new ways to produce hybrid seeds （Ghesquiere, 1986）. Deciphering the genome of O. Iongistaminata will be the key to uncovering the mechanism of these hallmark traits and improving cultivated rice.

关键词： Supplemental Information polymorphic

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Influence of Co, W and Ti on the Stress-rupture Lives of a Single Crystal Nickel-base Superalloy

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Journal of Materials Science & Technology 2006年第2期22卷 169-172页

作者： dayun YANG tao JIN Nairen ZHAO Zhihui WANG Xiaofeng SUN Hengrong GUAN Zhuangqi HU Department of Superalloy Institute of Metal Research Chinese Academy of Sciences Shenyang 110016 China

压力破裂上的公司， W 和 Ti 的影响 aNi-Cr-AI-Mo-Ta-Co-W-Ti 单身者水晶镍底生活超级合金用 L_9 (~) 被调查了由统计分析的直角的数组设计(OAD ) 。在一个选择作文范围， Ti 内容是到压力破裂生活的效果的最重要的因素然后由 Coconte... 详细信息

压力破裂上的公司， W 和 Ti 的影响 aNi-Cr-AI-Mo-Ta-Co-W-Ti 单身者水晶镍底生活超级合金用 L_9 (~) 被调查了由统计分析的直角的数组设计(OAD ) 。在一个选择作文范围， Ti 内容是到压力破裂生活的效果的最重要的因素然后由 Cocontent 列在后面。W 内容在压力破裂生命上有最小的效果。最佳的合金 contain10 wt 应该爱抚公司， 8 wt 宠物 W 和零 Ti。优化合金也为 500 h 在 870 deg C 在热暴露期间有好微结构稳定性。

关键词：单晶超耐热合金镍合金正交设计应力裂变钴钨

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Salidroside Protects Against 6-Hydroxydopamine-Induced Cytotoxicity by Attenuating ER Stress

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Neuroscience Bulletin 2016年第1期32卷 61-69页

作者： Kai tao Bao Wang dayun Feng Wei Zhang Fangfang Lu Juan Lai Lu Huang Tiejian Nie Qian Yang Department of Neurosurgery Tangdu Hospital The Fourth Military Medical University Research Center of Traditional Chinese Medicine Xijing Hospital The Fourth Military Medical University

Parkinson＇s disease （PD） is a neurodegenera- tive disease characterized by a persistent decline of dopaminergic （DA） neurons in the substantia nigra pars compacta. Despite its frequency, effective therapeutic strategies that halt the neurodegenerative processes are lacking, reinforcing the need to better understand the molecular drivers of this disease. Importantly, increasing evidence suggests that the endoplasmic reticulum （ER） stress-induced unfolded protein response is likely involved in DA neuronal death. Salidroside, a major compound isolated from Rhodiola rosea L., possesses potent anti- oxidative stress properties and protects against DA neu- ronal death. However, the underlying mechanisms are not well understood. In the present study, we demonstrate that salidroside prevents 6-hydroxydopamine （6-OHDA）- induced cytotoxicity by attenuating ER stress. Further- more, treatment of a DA neuronal cell line （SN4741） and primary cortical neurons with salidroside significantly reduced neurotoxin-induced increases in cytoplasmic reactive oxygen species and calcium, both of which cause ER stress, and cleaved caspase-12, which is responsible for ER stress-induced cell death. Together, these results sug- gest that salidroside protects SN4741 cells and primary cortical neurons from 6-OHDA-induced neurotoxicity by attenuating ER stress. This provides a rationale for the investigation of salidroside as a potential therapeutic agent in animal models of PD.

关键词： Parkinson＇s disease - ER stress Salidroside6-OHDA Neuroprotection

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Antagonism of Protease-Activated Receptor 4 Protects Against Traumatic Brain Injury by Suppressing Neuroinflammation via Inhibition of Tab2/NF-κB Signaling

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Neuroscience Bulletin 2021年第2期37卷 242-254页

作者： Jianing Luo Xun Wu Haixiao Liu Wenxing Cui Wei Guo Kang Guo Hao Guo Kai tao Fei Li Yingwu Shi dayun Feng Hao Yan Guodong Gao Yan Qu Department of Neurosurgery Tangdu HospitalThe Fourth Military Medical UniversityXi’an 710038China Department of Operative Dentistry and Endodontics School of StomatologyThe Fourth Military Medical UniversityXi’an 710038China

Traumatic brain injury(TBI)triggers the activation of the endogenous coagulation mechanism,and a large amount of thrombin is released to curb uncontrollable bleeding through thrombin receptors,also known as protease-activated receptors(PARs).However,thrombin is one of the most critical factors in secondary brain injury.Thus,the PARs may be effective targets against hemorrhagic brain injury.Since the PAR1 antagonist has an increased bleeding risk in clinical practice,PAR4 blockade has been suggested as a more promising treatment.Here,we explored the expression pattern of PAR4 in the brain of mice after TBI,and explored the effect and possible mechanism of BMS-986120(BMS),a novel selective and reversible PAR4 antagonist on secondary brain injury.Treatment with BMS protected against TBI in mice.mRNA-seq analysis,Western blot,and qRT-PCR verification in vitro showed that BMS significantly inhibited thrombin-induced inflammation in astrocytes,and suggested that the Tab2/ERK/NF-κB signaling pathway plays a key role in this process.Our findings provide reliable evidence that blocking PAR4 is a safe and effective intervention for TBI,and suggest that BMS has a potential clinical application in the management of TBI.

关键词： Protease-activated receptors BMS Traumatic brain injury Inflammation Astrocyte Tab2

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Genetic analysis of a hybrid sterility gene that causes both pollen and embryo sac sterility in hybrids between Oryza sativa L. and Oryza longistaminata

Genetic analysis of a hybrid sterility gene that causes both...

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江苏省遗传学会2017年学术研讨会——“技术创新与遗传...

作者：陈海元 Zhigang Zhao Linglong Liu Weiyi Kong Yun Lin Shimin You Wenting Bai Yanjia Xiao Hai Zheng Ling Jiang Jing Li Jiawu Zhou dayun tao Jianmin Wan Nanjing Agricultural University Yunnan Academy of Agricultural Sciences Chinese Academy of Agricultural Sciences

Oryza longistaminata originates from African wild rice and contains valuable traits conferring tolerance to biotic and abiotic stress. However, interspecific crosses between O. longistaminata and O. sativa cultivars are hindered by reproductive barriers. To dissect the mechanism of interspecific hybrid sterility, we developed a near-isogenic line（NIL） using indica variety RD23 as the recipient parent and O. longistaminata as the donor parent. Both pollen and embryo sac semi-sterility were observed in F1 hybrids between RD23 and NIL. Cytological analysis demonstrated that pollen abortion in F1 hybrids occurred at the early binucleate stage due to a failure of the first mitosis in microspores. Partial embryo sacs in the F1 hybrids were defective during the functional megaspore formation stage. Most notably, nearly half of the male or female gametes were aborted in heterozygotes S40 iS40 l, regardless of their genotypes. Thus, S40 was indicated as a one-locus sporophytic sterility gene controlling both male and female fertility in hybrids between RD23 and Oryza longistaminata. A population of 16,802 plants derived from the hybrid RD23/NIL-S40 was developed to fine-map S40. Finally, the S40 locus was delimited to an 80-kb region on the short arm of chromosome 1 in terms with reference sequences of cv. 93-11. Eight open reading frames（ORFs） were localized in this region. Based on gene expression and genomic sequence analysis, ORF5 and ORF8 were identified as candidate genes for the S40 locus. These results are helpful in cloning the S40 gene and marker-assisted transferring of the corresponding neutral allele in rice breeding programs.

关键词： Oryza longistaminata Reproductive isolation Gamete abortion Cytological abnormality Genetic mechanisms

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保护性农业的概念演绎与发展演变

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生态经济 2011年第10期27卷 106-109页

作者：冯璐张焱陶大云华中农业大学经管-土管学院湖北武汉400070 云南省农业科学院农业经济与信息研究所云南昆明650205 云南省农业科学院国际合作处云南昆明650200

虽然保护性农业是一个较新的概念,但从起源到现在,短短的几十年里经历了多次定义、修改和再定义的过程,才形成今天的全球性概念。保护性农业的发展也不断演变。根据保护性农业的概念演绎,结合保护性农业的发展演变,描述农业耕作制度革... 详细信息

虽然保护性农业是一个较新的概念,但从起源到现在,短短的几十年里经历了多次定义、修改和再定义的过程,才形成今天的全球性概念。保护性农业的发展也不断演变。根据保护性农业的概念演绎,结合保护性农业的发展演变,描述农业耕作制度革命的成长过程,并介绍保护性农业在中国的兴起与发展。

关键词：保护性农业概念演绎发展演变

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