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Molecular Characterization and Expression Analysis of S1 self-incompatibility Locus-linked Pollen 3.15 Gene in Citrus reticulata

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Journal of Integrative Plant Biology 2013年第5期55卷 443-452页

作者： Hong Xia Miao Zi Xing Ye yong hua qin Gui Bing Hu College of Horticulture South China Agricultural University State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources South China Agricultural University Key Laboratory of Biology and Genetic Improvement of Horticultural Crops-South China Ministry of Agriculture

Gametophytic self-incompatibility （GSI） is controlled by a highly polymorphic locus called the S-locus, which is an important factor that can result in seedless fruit in Citrus. The S 1 self-incompatibility locus-linked pollen 3.15 gene （S1-3.15） belongs to a type of S locus gene. The role of S1-3.15 in the SI reaction of Citrus has not yet been reported. In this study, full-length sequences of cDNA and DNA encoding the S1-3.15 gene, referred to as CrS1-3.15 , were isolated from ‘Wuzishatangju’ （Self-incompatibility, SI） and ‘Shatangju’ （Self-compatibility, SC） . The predicted amino acid sequences of CrS1-3.15 between ‘Wuzishatangju’ and ‘Shatangju’ differ by only three amino acids. Compared to ‘Wuzishatangju’, three bases were substituted in the genomic DNA of CrS1-3.15 from ‘Shatangju’. Southern blot results showed that one copy of CrS1-3.15 existed in the genomic DNA of both ‘Wuzishatangju’ and ‘Shatangju’. The expression level of the CrS1-3.15 gene in the ovaries of ‘Shatangju’ was approximately 60-fold higher than that in the ovaries of ‘Wuzishatangju’. When ‘Wuzishatangju’ was cross-pollinated, the expression of CrS1-3.15 was upregulated in the ovaries at 3d, and the highest expression levels were detected in the ovaries at 6d after cross-pollination of ‘Wuzishatangju’ × ‘Shatangju’. To obtain the CrS1-3.15 protein, the full-length cDNA of CrS1-3.15 genes from ‘Wuzishatangju’ and ‘Shatangju’ was successfully expressed in Pichia pastoris. Pollen germination frequency of ‘Wuzishatangju’ was inhibited significantly with increasing CrS1-3.15 protein concentrations from SI ‘Wuzishatangju’.

关键词： Citrus reticulata expression analysis pollen germination S1 self-incompatibility locus-linked pollen 3.15 gene self-compatibility self-incompatibility.

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The WRKY transcription factor HpWRKY44 regulates CytP450-like1 expression in red pitaya fruit(Hylocereus polyrhizus)

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Horticulture Research 2017年第1期4卷 192-200页

作者： Mei-nv Cheng Zi-juan huang qing-zhu hua Wei Shan Jian-fei Kuang Wang-jin Lu yong-hua qin Jian-ye Chen State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources/Guangdong Provincial Key Laboratory of Postharvest Science of Fruits and Vegetables/Key Laboratory of Biology and Genetic Improvement of Horticultural Crops-South China Ministry of AgricultureCollege of HorticultureSouth China Agricultural UniversityGuangzhou510642China

Red pitaya(Hylocereus polyrhizus)fruit is a high-value,functional food,containing a high level of *** genes potentially related to betalain biosynthesis,such as cytochrome P450-like(CytP450-like),have been identified in pitaya fruit,while their transcriptional regulation remains *** this work,the potential involvement of a WRKY transcription factor,HpWRKY44,in regulating CytP450-like1 expression in pitaya fruit was ***44,a member of the Group 1 WRKY family,contains two conserved WRKY motifs and is localized in the ***44 also exhibits trans-activation *** expression analysis showed that the expression of HpCytP450-like1 and HpWRKY44 increased steadily during pitaya fruit coloration,which corresponded with the production of elevated betalain levels in the ***44 was also demonstrated to directly bind to and activate the HpCytP450-like1 promoter via the recognition of the W-box element present in the ***,our findings indicate that HpWRKY44 transcriptionally activates HpCytP450-like1,which perhaps,at least in part,contributes to betalain biosynthesis in pitaya *** information provided in the current study provides novel insights into the regulatory network associated with betalain biosynthesis during pitaya fruit coloration.

关键词： elevated activation finding

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DKP-SLAM:A Visual SLAM for Dynamic Indoor Scenes Based on Object Detection and Region Probability

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Computers, Materials & Continua 2025年第1期82卷 1329-1347页

作者： Menglin Yin yong qin Jiansheng Peng College of Automation Guangxi University of Science and TechnologyLiuzhou545000China Department of Artificial Intelligence and Manufacturing Hechi UniversityHechi546300China Key Laboratory of AI and Information Processing Education Department of Guangxi Zhuang Autonomous RegionHechi546300China Guangxi Key Laboratory of Sericulture Ecology and Applied Intelligent Technology School of Chemistry and BioengineeringHechi UniversityHechi546300China

In dynamic scenarios,visual simultaneous localization and mapping(SLAM)algorithms often incorrectly incorporate dynamic points during camera pose computation,leading to reduced accuracy and *** paper presents a dynamic SLAM algorithm that leverages object detection and regional dynamic ***,a parallel thread employs the YOLOX object detectionmodel to gather 2D semantic information and compensate for missed ***,an improved K-means++clustering algorithm clusters bounding box regions,adaptively determining the threshold for extracting dynamic object contours as dynamic points *** process divides the image into low dynamic,suspicious dynamic,and high dynamic *** the tracking thread,the dynamic point removal module assigns dynamic probability weights to the feature points in these *** with geometric methods,it detects and removes the dynamic *** final evaluation on the public TUM RGB-D dataset shows that the proposed dynamic SLAM algorithm surpasses most existing SLAM algorithms,providing better pose estimation accuracy and robustness in dynamic environments.

关键词： Visual SLAM dynamic scene YOLOX K-means++clustering dynamic probability

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lncRNA SNHG4 enhanced gastric cancer progression by modulating miR-409-3p/CREB1 axis

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Oncology Research 2025年第1期33卷 185-198页

作者： ZHOUYANG CHENG YUCHEN hua YANG CAO JUN qin Department of General Surgery Affiliated Hospital of Nantong UniversityNantong226001China Department of Surgery Affiliated Hospital of Nantong UniversityMedical School of Nantong UniversityNantong226001China Department of Operation Affiliated Hospital of Nantong UniversityNantong226001China

Objective:Gastric cancer(GC)is a globally common cancer characterized by high incidence and mortality *** in the molecular understanding of GC provide promising targets for GC diagnosis and *** non-coding RNAs(lncRNAs)and their downstream regulators are regarded to be implicated in the progression of multiple types of *** have shown that the lncRNA small nucleolar RNA host gene 4(SNHG4)serves as a tumor promoter in various malignancies,while its function in GC has yet to be ***,our study aimed to explore the role and underlying mechanism of SNHG4 in ***:We used qRT-PCR to analyze SNHG4 expression in GC tissues and ***-Meier analysis was used to assess the correlation between SNHG4 expression and the survival rate of GC *** function experiments such as CCK-8,BrdU,colony formation,flow cytometry analysis,and transwell were performed to explore the effects of SNHG4 on GC cell proliferation,apoptosis,cell cycle,migration,and *** also established xenograft mouse models to explore the effect of SNHG4 on GC tumor ***,dual luciferase reporter assay was used to verify the interaction between SNHG4 and miR-409-3p and between miR-409-3p and cAMP responsive element binding protein 1(CREB1).Results:The results indicated that SNHG4 was overexpressed in GC tissues and cell lines,and was linked with poor survival rate of GC ***4 promoted GC cell proliferation,migration,and invasion while inhibiting cell apoptosis and cell cycle arrest in *** in vivo experiment indicated that SNHG4 facilitated GC tumor ***,SNHG4 was demonstrated to bind to ***,CREB1 was directly targeted by *** assays demonstrated that miR-409-3p deficiency reversed the suppressive impact of SNHG4 knockdown on GC cell ***,miR-409-3p was also revealed to inhibit GC cell proliferation,migration,and invasion by targeting CREB1

关键词： Gastric cancer Small nucleolar RNA host gene 4(SNHG4) MicroRNA-409-3p(miR-409-3p) cAMP responsive element binding protein 1(CREB1)

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A chromosome-scale genome sequence of pitaya (Hylocereus undatus) provides novel insights into the genome evolution and regulation of betalain biosynthesis

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Horticulture Research 2021年第1期8卷 2260-2274页

作者： Jian-ye Chen Fang-fang Xie Yan-ze Cui Can-bin Chen Wang-jin Lu Xiao-di Hu qing-zhu hua Jing Zhao Zhi-jiang Wu Dan Gao Zhi-ke Zhang Wen-kai Jiang qing-ming Sun Gui-bing Hu yong-hua qin State Key Laboratory for Conservation and Utilization of Subtropical Agrobioresources/Guangdong Provincial Key Laboratory of Postharvest Science of Fruits and Vegetables/Key Laboratory of Biology and Genetic Improvement of Horticultural Crops(South China) Ministry of Agriculture and Rural Affairs/Lingnan Guangdong Laboratory of Modern AgricultureCollege of HorticultureSouth China Agricultural University510642 GuangzhouGuangdongChina Novogene Bioinformatics Institute 100083 BeijingChina Horticulture Research Institute Guangxi Academy of Agricultural Sciences530007 NanningGuangxiChina Institute of Fruit Tree Research Guangdong Academy of Agricultural Sciences/Key Laboratory of South Subtropical Fruit Biology and Genetic Resource Utilization(MOA)/Guangdong Province Key Laboratory of Tropical and Subtropical Fruit Tree Research510640 GuangzhouChina

Pitaya(Hylocereus)is the most economically important fleshy-fruited tree of the Cactaceae family that is grown worldwide,and it has attracted significant attention because of its betalain-abundant ***,the lack of a pitaya reference genome significantly hinders studies focused on its evolution,as well as the potential for genetic improvement of this ***,we employed various sequencing approaches,namely,PacBio-SMRT,Illumina HiSeq paired-end,10×Genomics,and Hi-C(high-throughput chromosome conformation capture)to provide a chromosome-level genomic assembly of‘GHB’pitaya(***,2n=2x=22 chromosomes).The size of the assembled pitaya genome was 1.41 Gb,with a scaffold N50 of~127.15 *** total,27,753 protein-coding genes and 896.31Mb of repetitive sequences in the *** genome were *** has undergone a WGT(whole-genome triplication),and a recent WGD(whole-genome duplication)occurred after the gamma event,which is common to the other species in Cactaceae.A total of 29,328 intact LTR-RTs(~696.45Mb)were obtained in ***,of which two significantly expanded lineages,Ty1/copia and Ty3/gypsy,were the main drivers of the expanded genome.A high-density genetic map of F1 hybrid populations of‘GHB’×‘Dahong’pitayas(***)and their parents were constructed,and a total of 20,872 bin markers were identified(56,380 SNPs)for 11 linkage *** importantly,through transcriptomic and WGCNA(weighted gene coexpression network analysis),a global view of the gene regulatory network,including structural genes and the transcription factors involved in pitaya fruit betalain biosynthesis,was *** data present a valuable resource for facilitating molecular breeding programs of pitaya and shed novel light on its genomic evolution,as well as the modulation of betalain biosynthesis in edible fruits.

关键词： evolution expanded linkage

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ImSpiRE: image feature-aided spatial resolution enhancement method

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Science China Life Sciences 2025年第1期68卷 272-283页

作者： Yuwei hua Yizhi Zhang Zhenming Guo Shan Bian yong Zhang State Key Laboratory of Cardiovascular Diseases and Medical Innovation Center Institute for Regenerative MedicineDepartment of NeurosurgeryShanghai East HospitalShanghai Key Laboratory of Signaling and Disease ResearchFrontier Science Center for Stem Cell ResearchSchool of Life Sciences and TechnologyTongji University

The resolution of most spatially resolved transcriptomic technologies usually cannot attain the single-cell level, limiting their applications in biological discoveries. Here, we introduce ImSpiRE, an image feature-aided spatial resolution enhancement method for in situ capturing spatial transcriptome. Taking the information stored in histological images, ImSpiRE solves an optimal transport problem to redistribute the expression profiles of spots to construct new transcriptional profiles with enhanced resolution, together with extending the gene expression profiles into unmeasured regions. Applications to multiple datasets confirm that ImSpiRE can enhance spatial resolution to the subspot level while contributing to the discovery of tissue domains, signaling communication patterns, and spatiotemporal characterization.

关键词： spatial transcriptome histological images spatial resolution enhancement

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Enhancing m^(6)A modification in the motor cortex facilitates corticospinal tract remodeling after spinal cord injury

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Neural Regeneration Research 2025年第6期20卷 1749-1763页

作者： Tian qin Yuxin Jin Yiming qin Feifei Yuan Hongbin Lu Jianzhong Hu yong Cao Chengjun Li Department of Spine Surgery and Orthopedics Xiangya HospitalCentral South UniversityChangshaHunan ProvinceChina Key Laboratory of Organ Injury Aging and Regenerative Medicine of Hunan ProvinceChangshaHunan ProvinceChina National Clinical Research Center for Geriatric Disorders Xiangya HospitalCentral South UniversityChangshaHunan ProvinceChina Department of Sports Medicine Xiangya HospitalCentral South UniversityChangshaHunan ProvinceChina

Spinal cord injury typically causes corticospinal tract disruption. Although the disrupted corticospinal tract can self-regenerate to a certain degree, the underlying mechanism of this process is still unclear. N6-methyladenosine(m^(6)A) modifications are the most common form of epigenetic regulation at the RNA level and play an essential role in biological processes. However, whether m^(6)A modifications participate in corticospinal tract regeneration after spinal cord injury remains unknown. We found that expression of methyltransferase 14 protein(METTL14) in the locomotor cortex was high after spinal cord injury and accompanied by elevated m^(6)A levels. Knockdown of Mettl14 in the locomotor cortex was not favorable for corticospinal tract regeneration and neurological recovery after spinal cord injury. Through bioinformatics analysis and methylated RNA immunoprecipitation-quantitative polymerase chain reaction, we found that METTL14 regulated Trib2 expression in an m^(6)A-regulated manner, thereby activating the mitogen-activated protein kinase pathway and promoting corticospinal tract regeneration. Finally, we administered syringin, a stabilizer of METTL14, using molecular docking. Results confirmed that syringin can promote corticospinal tract regeneration and facilitate neurological recovery by stabilizing METTL14. Findings from this study reveal that m^(6)A modification is involved in the regulation of corticospinal tract regeneration after spinal cord injury.

关键词： corticospinal tract remodeling epigenetic regulations locomotor cortex m^(6)A modification methyltransferase 14 protein(METTL14) mitogen-activated protein kinase neural regeneration spinal cord injury syringin TRIB2

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当归不同部位入药功效取向差异的化学物质基础与药性关联性研究

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中草药 2014年第21期45卷 3208-3212页

作者：严辉段金廒尚尔鑫华永庆钱大玮南京中医药大学江苏省中药资源产业化过程协同创新中心江苏南京210023

以中药方剂数据库为基础,检索其中包含当归不同部位入药的方剂。应用适宜的数据挖掘技术,统计分析当归不同入药部位的药性特点及其适应病证的变化规律。结合当归组织结构、当归不同部位化学成分分布特点,以及药效学报道,探讨当归不同入... 详细信息

以中药方剂数据库为基础,检索其中包含当归不同部位入药的方剂。应用适宜的数据挖掘技术,统计分析当归不同入药部位的药性特点及其适应病证的变化规律。结合当归组织结构、当归不同部位化学成分分布特点,以及药效学报道,探讨当归不同入药部位功效取向差异机制及其应用病证的变化规律。结果显示,当归不同部位入药功效取向差异的化学物质基础与药性具有较高的关联性。当归不同部位临床用药的趋向性与古人所述"归头止血、归身补血、归尾活血、全当归活血补血"之结论基本一致。为当归不同入药部位的临床科学合理用药提供一定的研究基础和参考。

关键词：当归不同部位化学物质组成药性功效取向

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Deciphering the role of ultra-low-loaded rhodium in NiFe-MIL-53 for superior oxygen evolution reaction

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Journal of Energy Chemistry 2025年第1期100卷 77-86页

作者： Jinzhi Jia Jinhua Zhang Kailu Guo Lanyue Zhang Gening Du Hao You Junfeng huang Mudong Tu hua Li yong Peng Wei Dou Cailing Xu State Key Laboratory of Applied Organic Chemistry College of Chemistry and Chemical Engineering School of Materials and Energy Lanzhou University College of Chemistry and Chemical Engineering Luoyang Normal University

Designing highly active and stable electrocatalysts of oxygen evolution reaction （OER） is one of the crucial *** this study,a novel OER electrocatalyst,NiFe-MIL-53 modified with ultra-low rhodium（Rh@NiFe-MIL-53）,is successfully prepared via the hydrothermal ***-situ Raman spectroscopy and electrochemical impedance spectroscopy reveal that the doped Rh accelerates the phase transformation of NiFe-MIL-53 and the in-situ formed Rh@NiFeOOH is the actual active *** importantly,the enhanced reversibility of electrochemical reconstruction between NiFeOOH and NiFe（OH）2after doping Rh is beneficial for improving the electrochemical stability of the catalyst.X-ray photoelectron spectroscopy spectra show the strong electronic interaction between single-atom Rh and Ni/Fe in Rh@***,theoretical calculations confirm that the integration of single-atom Rh into the NiFeOOH successfully reduces the band gap,regulates the d-band center （εd）,accelerates the charge transfer,and optimizes the adsorption behavior of oxygen-containing intermediates,thereby lowering the energy barrier of rate-determining ***,the optimized Rh@NiFe-MIL-53 exhibits excellent OER activity （240 mV） with a small Tafel slope of 48.2 mV dec-1and long-term durability (over1270 h at 10 m A cm-2and 110 h at 200 mA cm-2).This work presents a new perspective on designing highly efficient OER electrocatalysts.

关键词： X ray photoelectron spectroscopy

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奇甜蛋白基因在园艺作物中的表达

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细胞生物学杂志 2005年第5期27卷 535-538页

作者：朱道圩秦永华张上隆河南农业大学林学园艺学院园艺系郑州450002 浙江大学园艺系杭州310029

奇甜蛋白(thaumatin)是从非洲西部植物katemfe(ThaumatococcusdanielliiBenth)中提取得到的几种关系相近的甜味蛋白的统称,其中最主要的为奇甜蛋白I和奇甜蛋白II。奇甜蛋白不仅甜度高,而且具有低热量、安全无毒以及不易诱发糖尿病等优... 详细信息

奇甜蛋白(thaumatin)是从非洲西部植物katemfe(ThaumatococcusdanielliiBenth)中提取得到的几种关系相近的甜味蛋白的统称,其中最主要的为奇甜蛋白I和奇甜蛋白II。奇甜蛋白不仅甜度高,而且具有低热量、安全无毒以及不易诱发糖尿病等优点。因此,将奇甜蛋白基因转入园艺作物中并使之表达,用以提高可食部分的甜味,有其特别的研究意义。奇甜蛋白基因已先后在马铃薯、梨树、黄瓜、番茄等园艺作物得到表达,但仍有一些问题需要解决。现从奇甜蛋白基因的克隆、测序与表达,转基因果实的安全性检测,甜度的感官评价,甜味遗传特点以及奇甜蛋白抗真菌病害检验等几个方面综述了国内外研究进展,并对今后的研究提出了建议。

关键词：奇甜蛋白基因表达园艺作物真菌病害

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