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Plant Communications 2024年第9期5卷 168-183页

作者： Weihong Fu Lin Zhao Wanjun Qiu xu xu Meng Ding Liming Lan Shenchun Qu Sanhong Wang College of Horticulture Nanjing Agricultural UniversityNanjing 210095China xuzhou institute of agricultural sciences in xuhuai region of jiangsu Xuzhou 221131China

Soluble sugar and organic acids are key determinants of fruit organoleptic quality and directly affect the commodity value and economic returns of fruit *** performed whole-genome sequencing of the apple varieties Gala and Xiahongrou,along with their F1 hybrids,to construct a high-density bin *** quantitative genetic analysis pinpointed 53 quantitative trait loci(QTLs)related to 11 sugar and acid *** identified a candidate gene,MdNADP-ME,responsible for malate degradation,in a stable QTL on linkage group *** analysis revealed an A/C SNP in the promoter region(MEp-799)that influences binding of the MdMYB2 transcription factor,thereby affecting MdNADP-ME *** our study of various apple genotypes,this SNP has been demonstrated to be linked to malate and fructose *** also developed a dCAPS marker associated with fruit fructose *** results substantiate the role of MdNADP-ME in maintaining the equilibrium between sugar and acid contents in apple fruits.

关键词： apple quantitative trait locus malate degradation sugar content promoter

Screening and identification of candidate Fusarium wilt-resistance genes from pumpkin

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Horticultural Plant Journal 2022年第5期8卷 583-592页

作者： Jun xu Qianqian Xian Ke Wang Jingping Dong Chaoyang Zhang Shengli Du xuewen xu xuehao Chen School of Horticulture and Plant Protection Yangzhou UniversityYangzhouJiangsu 225009China huai’an Key Laboratory for agricultural Biotechnology Huaiyin Institute of Agricultural Sciences in Xuhuai Region of Jiangsu ProvinceHuai’anJiangsu 223001China State Key Laboratory of Vegetable Germplasm Innovation Tianjin 300192China

Pumpkin(Cucurbita moschata)has been widely used as cucumber(Cucumis sativus L.)rootstock to defend against Fusarium wilt(FW)and increase cucumber yields and ***,the resistance genes and mechanisms underlying the FW tolerance in pumpkin are poorly *** we analyzed the transcriptome of pumpkin inoculated with the cucumber FW causal agent Fusarium oxysporum ***(Foc),and obtained 3152 and 4735 upregulated genes induced by Foc at 24h after Foc inoculation compared with at 0h and 24h non-inoculated control,***,404 common differentially expressed genes(DEGs)were screened using the criterion log_(2) FPKM(fold change)≥*** total,206 of 404 DEGs were predominantly expressed in roots,which is the first tissue that Foc contacts and invades.140 DEGs were selected and classified into four groups(pathogenesis resistance,secondary metabolism-related,transcription factor and signal binding)based on their functional ***,29 genes having high expression levels were selected to investigate the expression patterns induced by a Foc *** them,16 genes were significantly induced by Foc and showed high expression levels at various treatment time *** candidate genes may act as positive regulators of FW resistance in pumpkin and provide effective resources for improving cucumber FW resistance through breeding programs.

关键词： Pumpkin Rootstock Transcriptome Fusarium wilt Resistance genes

Lack of Tocopherol Inhibits Rice Growth by Triggering an Ectopic Stress Response and the Accumulation of DELLA Protein

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Phyton-International Journal of Experimental Botany 2023年第4期92卷 1173-1183页

作者： Di Wang Hao Gao Jian Wang Baoshan Cheng Gang Li Weijun xu Xi Liu huaiyin institute of agricultural sciences in xuhuai region of jiangsu Huai’an223001China School of Life sciences Huaiyin Normal UniversityHuai’an223300China Key Laboratory of Eco-agricultural Biotechnology around Hongze Lake Regional Cooperative Innovation Center for Modern Agriculture and Environmental ProtectionHuaiyin Normal UniversityHuai’an223300China

Although tocopherols are essential for rice development,the molecular details by which their absence affects development remain to be *** study how tocopherols function during rice development,we performed a transcriptome deep sequencing(RNA-seq)analysis of the rice cultivar Nipponbare(Nip)and the tocopherol-deficient mutant small grain and dwarf 1-2(sgd1-2).We identified 563 differentially expressed genes that were enriched in Gene Ontology categories associated with metabolism,stress,cellular responses,and transcriptional *** determined that the total fatty acid composition of Nip and sgd1-2 was comparable,although cell membrane penetrability in sgd1-2 was significantly higher than in Nip under optimal growth conditions,indicating that tocopherol deficiency induces cell membrane *** expression levels of dehydration-responsive element binding 1(DREB1)genes and free proline content in sgd1-2 were also higher than those in *** also showed that the DELLA protein SLENDER RICE1(SLR1)accumulated in sgd1-2,resulting in significant changes in the global *** study confirms that the lack of tocopherol accumulation in rice induced ectopic stress responses and limited growth by enhancing SLR1 abundance through increasing SLR1 transcript *** results provide new insights into tocopherol during rice development.

关键词： Tocopherol deficiency ectopic stress response gibberellin rice

Mulching with plastic film improved the root quality of summersown sweet potato(Ipomoea batatas(L).Lam.)in northern China

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Journal of Integrative Agriculture 2019年第5期18卷 982-991页

作者： HOU Fu-yun DONG Shun-xu XIE Bei-tao ZHANG Hai-yan LI Ai-xian WANG Qing-mei Crop Research institute Shandong Academy of Agricultural Sciences/Scientific Observation and Experimental Station of Tuber and Root Crops in Huang-Huai-Hai RegionMinistry of Agriculture and Rural Affairs

The root quality of sweet potato cultivated during the summer season is poor in northern China;thus,this study was conducted to determine whether root quality could be improved through mulching with plastic film(MPF).The effect of MPF on root starch and its composition,the activity of starch synthesis enzymes,and other quality-related parameters were investigated in two purple flesh sweet potato cultivars,Jishu 18 and Ayamurasaki(Aya).The results indicated that root dry matter,anthocyanin content,adenosine triphosphate(ATP),and starch content were higher in both cultivars under the MPF treatment than those under the control *** root adenosine diphosphate glucose pyrophosphorylase/uridine diphosphate glucose pyrophosphorylase(ADPGPPase/UDPGPPase)activity and adenosine triphosphatease(ATPase)activity were increased using ***,under the MPF treatment,the amylose content,soluble sugar content,and granule-bound synthase(GBSS)activity increased in Jishu 18 but decreased in Aya,and the amylopectin content,protein content,and soluble starch synthase(SSS)activity decreased in Jishu 18 but increased in ***,MPF seems benifit to improve the quality of sweet potato,but the effects of this treatment condition may be dependent on the cultivar.

关键词： mulching with plastic film summer-sown sweet potato root quality starch

DMPP mitigates N_(2)O and NO productions by inhibiting ammonia-oxidizing bacteria in an intensified vegetable field under different temperature and moisture regimes

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Pedosphere 2024年第3期34卷 652-663页

作者： Xi ZHANG Xintong xu Chenyuan WANG Qianqian ZHANG Yubing DONG Zhengqin XIONG jiangsu Key Laboratory of Low Carbon Agriculture and GHGs Mitigation College of Resources and Environmental SciencesNanjing Agricultural UniversityNanjing 210095(China) Department of Soil Science of Temperate Ecosystems Department of Agricultural Soil ScienceGeorg-August University of GottingenGottingen 37077(Germany) State Key Laboratory of Subtropical Silviculture Zhejiang A&F UniversityHangzhou 311300(China) huaiyin institute of agricultural sciences of xuhuai region in jiangsu Jiangsu Academy of Agricultural SciencesHuai’an 223001(China)

Vegetable soils with high nitrogen input are major sources of nitrous oxide(N_(2)O)and nitric oxide(NO),and incorporation of the nitrification inhibitor 3,4-dimethylpyrazole phosphate(DMPP)into soils has been documented to effectively reduce ***,the efficiency of DMPP in terms of soil N_(2)O and NO mitigations varies greatly depending on soil temperature and moisture ***,further evaluations of DMPP efficiency in diverse environments are required to encourage widespread application.A laboratory incubation study(28 d)was established to investigate the interactive effects of DMPP,temperature(15,25,and 35?C),and soil moisture(55% and 80% of water-holding capacity(WHC))on net nitrification rate,N_(2)O and NO productions,and gene abundances of nitrifiers and denitrifiers in an intensive vegetable *** showed that incubating soil with 1%DMPP led to partial inhibition of the net nitrification rate and N_(2)O and NO productions,and the reduction percentage of N_(2)O production was higher than that of NO production(69.3%vs.38.2%)regardless of temperature and soil moisture *** increased temperatures promoted the net nitrification rate but decreased soil N_(2)O and NO *** moisture influenced NO production more than N_(2)O production,decreasing with the increased moisture level(80%).The inhibitory effect of DMPP on cumulative N_(2)O and NO productions decreased with increased temperatures at 55%***,the inhibitory effect of DMPP on cumulative N_(2)O production increased with increased temperatures at 80%*** on the correlation analyses and automatic linear modeling,the mitigation of both N_(2)O and NO productions from the soil induced by DMPP was attributed to the decreases in ammonia-oxidizing bacteria(AOB)amoA gene abundance and NO_(2)^(-)-N ***,our study indicated that DMPP reduced both N_(2)O and NO productions by regulating the associated AOB amoA gene abundance and NO_(2)^(-)-N concentra

关键词： 3,4-dimethylpyrazole phosphate environment condition gene abundance nitrification inhibitor nitrite accumulation soil water content

Pesticides Could Alleviate the Symptoms of Sweet Potato Virus Disease(SPVD)

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agricultural Biotechnology 2018年第5期7卷 268-273页

作者： Hao XIE Zaixing SU Hui YAN Qiang LI Yaju LIU Meng KOU Wei TANG Xin WANG Yungang ZHANG Sweet Potato Research institute Chinese Academy of Agricultural Sciences jiangsu xuzhou Sweet Potato Research Center Key Laboratory for Biology and Genetic Breeding of Sweet PotatoMinistry of AgricultureXuzhou Research Institute of Agricultural Sciences in Jiangsu Xu-Huai District

In recent years, sweet potato virus disease （SPVD） has severely affected the production of sweet potato in China. In order to select chemical agents to prevent sweet potato from being infected with SPVD, 14 pesticides were sprayed on the plants of sweet potato infected with SPVD, and the relative mRNA level of the viruses in the leaves and physiological indicators of sweet potato plants were detected. The results showed that after the application of most of the pesticides, the relative mRNA level of the two viruses that caused SPVD decreased, and the chlorophyll content and biomass of sweet potato infected with SPVD increased significantly or extremely significantly. Among the pesticides, BASF virus liquid, 0.1% physcion and Aolike powder for cucumber virus were proved to be the best, as the chlorophyll content and stem length of sweet potato increased significantly. The experiment indicated that the pesticides could reduce the harm of SPVD to sweet potato.

关键词： Sweet potato SPVD Pesticide treatment

SoySNP618K array:A high-resolution single nucleotide polymorphism platform as a valuable genomic resource for soybean genetics and breeding

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Journal of Integrative Plant Biology 2022年第3期64卷 632-648页

作者： Yan-Fei Li Ying-Hui Li Shan-Shan Su Jochen CReif Zhao-Ming Qi Xiao-Bo Wang Xing Wang Yu Tian De-Lin Li Ru-Jian Sun Zhang-Xiong Liu Ze-Jun xu Guang-Hui Fu Ya-Liang Ji Qing-Shan Chen Ji-Qiang Liu Li-Juan Qiu The National Key Facility for Crop Gene Resources and Genetic Improvement(NFCRI)/Key Laboratory of Crop Gene Resource andGermplasm Enhancement(MOA)/Key Laboratory of Soybean Biology(Beijing)(MOA) Institute of Crop SciencesChinese Academy ofAgricultural SciencesBeijing 100081China Beijing Compass Biotechnology Co.Ltd Beijing 102206China Department of Breeding Research Leibniz Institute of Plant Genetics and Crop Plant Research(IPK)Gatersleben 06466Germany Key Laboratory of Soybean Biology in Chinese Ministry of Education(Key Laboratory of Soybean Biology and Breeding/Genetics ofChinese Agriculture Ministry) Northeast Agricultural UniversityHarbin 150030China School of Agronomy Anhui Agricultural UniversityHefei 230036China xuzhou institute of agricultural sciences of xu-huai region of jiangsu Xuzhou 221131China Department of Plant Genetics and Breeding China Agricultural UniversityBeijing 100193China Hulun Buir Institution of agricultural sciences ZhalantunInner Mongolia 021000China Suzhou Academy of agricultural sciences Suzhou 234000China

Innovations in genomics have enabled the development of low-cost,high-resolution,single nucleotide polymorphism(SNP)genotyping arrays that accelerate breeding progress and support basic research in crop ***,we developed and validated the Soy SNP618 K array(618,888 SNPs)for the important crop *** SNPs were selected from whole-genome resequencing data containing 2,214 diverse soybean accessions;29.34%of the SNPs mapped to genic regions representing 86.85%of the 56,044annotated high-confidence ***-by-state analyses of 318 soybeans revealed 17 redundant accessions,highlighting the potential of the Soy SNP618 K array in supporting gene bank *** patterns of population stratification and genomic regions enriched through domestication were highly consistent with previous findings based on resequencing data,suggesting that the ascertainment bias in the Soy SNP618 K array was largely compensated ***-wide association mapping in combination with reported quantitative trait loci enabled fine-mapping of genes known to influence flowering time,E2 and Gm PRR3 b,and of a new candidate gene,Gm ***,genomic prediction of flowering and maturity time in 502 recombinant inbred lines was highly accurate(>0.65).Thus,the Soy SNP618 K array is a valuable genomic tool that can be used to address many questions in applied breeding,germplasm management,and basic crop research.

关键词： functional single nucleotide polymorphism array gene discovery genomic selection genome-wide association studies marker-assisted selection soybean

QNE1 is a key flowering regulator determining the length of the vegetative period in soybean cultivars

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Science China(Life sciences) 2022年第12期65卷 2472-2490页

作者： Zhengjun Xia Hong Zhai Yanfeng Zhang Yaying Wang Lu Wang Kun xu Hongyan Wu Jinglong Zhu Shuang Jiao Zhao Wan Xiaobin Zhu Yi Gao Yingxiang Liu Rong Fan Shihao Wu Xin Chen Jinyu Liu Jiayin Yang Qijian Song Zhixi Tian Key Laboratory of Soybean Molecular Design Breeding Northeast Institute of Geography and AgroecologyInnovation Academy for Seed DesignChinese Academy of SciencesHarbin 150081China Hybrid Rapeseed Research Center of Shaanxi Province Yangling 712100China College of Life Science Northeast Agricultural UniversityHarbin 150030China institute of Industrial Crops Jiangsu Academy of Agricultural SciencesNanjing 210014China huaiyin institute of agricultural Science of xuhuai region Jiangsu Academy of Agricultural SciencesHuai’an 223001China USDA ARS Soybean Genome&Improvement LabBeltsville 20705USA State Key Laboratory of Plant Cell and Chromosome Engineering Institute of Genetics and Developmental BiologyInnovation Academy for Seed DesignChinese Academy of SciencesBeijing 100101China

The soybean E1 gene is a major regulator that plays an important role in flowering time and ***,it remains unclear how cultivars carrying the dominant E1 allele adapt to the higher latitudinal areas of northern *** mapped the novel quantitative trait locus QNE1(QTL near E1) for flowering time to the region proximal to E1 on chromosome 6 in two mapping *** cloning revealed Glyma.06G204300,encoding a TCP-type transcription factor,as a strong candidate gene for *** analysis further confirmed that functional single nucleotide polymorphisms(SNPs) at nucleotides 686 and 1,063 in the coding region of Glyma.06G204300 were significantly associated with flowering *** protein encoded by the candidate gene is localized primarily to the ***,soybean and Brassica napus plants overexpressing Glyma.06G204300 exhibited early *** conclude that despite their similar effects on flowering time,QNE1 and E4 may control flowering time through different regulatory mechanisms,based on expression studies and weighted gene co-expression network analysis of flowering time-related *** the molecular basis of QNE1 control of flowering time enriches our knowledge of flowering gene networks in soybean and will facilitate breeding soybean cultivars with broader latitudinal adaptation.

关键词： QNE1 soybean TCP flowering time vegetative period maturity Zhonghuang 13

Retinal layer segmentation using gradient feature calculation in OCT

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Journal of Innovative Optical Health sciences 2024年第6期17卷 137-147页

作者： Lei Liu Yeman Liu Xiaoteng Yan Haiyi Bian Hang xu Chunzhong Li Hongnan Duan Faculty of Electronic Information Engineering huaiyin institute of Technology huai'an Jiangsu 223003P.R.China Department of Ophthalmology Affiliated huai'an Hospital of xuzhou Medical University huai'an Jiangsu 223003P.R.China

Retinal diseases pose significant challenges to global healthcare systems,necessitating accurate and efficient diagnostic *** Coherence Tomography(OCT)has emerged as a valuable tool for diagnosing and monitoring retinal conditions due to its noncontact and noninvasive *** paper presents a novel retinal layering method based on OCT images,aimed at enhancing the accuracy of retinal lesion *** method utilizes gradient analysis to effectively identify and segment retinal *** selecting a column of pixels as a segmentation line and utilizing gradient information from adjacent pixels,the method initiates and proceeds with the layering *** approach addresses potential issues arising from partial layer overlapping,minimizing deviations in layer *** results demonstrate the efficacy of the proposed method in accurately segmenting eight retinal boundaries,with an average absolute position deviation of 1.75 *** providing accurate segmentation of retinal layers,this approach contributes to the early detection and management of ocular conditions,ultimately improving patient outcomes and reducing the global burden of vision-related ailments.

关键词： Retinal diseases optical coherence tomography retinal layer segmentation.

Optimizing nitrogen management can improve stem lodging resistance and stabilize the grain yield of japonica rice in rice-crayfish coculture systems

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Journal of Integrative Agriculture 2024年第12期23卷 3983-3997页

作者： Qiang xu Jingyong Li Hui Gao Xinyi Yang Zhi Dou Xiaochun Yuan Weiyan Gao Hongcheng Zhang jiangsu Key Laboratory of Crop Genetics and Physiology/jiangsu Key Laboratory of Crop Cultivation and Physiology/agricultural College Yangzhou UniversityYangzhou 225009China jiangsu Co-Innovation Center for Modern Production Technology of Grain Crops Yangzhou UniversityYangzhou 225009China Research institute of Rice Industrial Engineering Technology Yangzhou UniversityYangzhou 225009China Key Laboratory of Agro-Ecological Processes in Subtropical region Institute of Subtropical AgricultureChinese Academy of SciencesChangsha 410125China jiangsu xuyi Crayfish Industry Development Co. Ltd.Huai’an 211700China

Nitrogen(N)significantly affects rice yield and lodging *** studies have primarily investigated the impact of N management on rice lodging in conventional rice monoculture(RM);however,few studies have performed such investigations in rice-crayfish coculture(RC).We hypothesized that RC would increase rice lodging risk and that optimizing N application practices would improve rice lodging resistance without affecting food *** conducted a two-factor(rice farming mode and N management practice)field experiment from2021 to 2022 to test our *** rice farming modes included RM and RC,and the N management practices included no nitrogen fertilizer,conventional N application,and optimized N *** rice yield and lodging resistance characteristics,such as morphology,mechanical and chemical characteristics,anatomic structure,and gene expression levels,were analyzed and compared among the *** the same N application practice,RC decreased the rice yield by 11.1-24.4% and increased the lodging index by 19.6-45.6% compared with the values yielded in *** RC,optimized N application decreased the plant height,panicle neck node height,center of gravity height,bending stress,and lodging index by 4.0-4.8%,5.2-7.8%,0.5-4.5%,5.5-10.5%,and 1.8-19.5%,respectively,compared with those in the conventional N application ***,it increased the culm diameter,culm wall thickness,breaking strength,and non-structural and structural carbohydrate content by 0.8-4.9%,2.2-53.1%,13.5-19.2%,2.2-24.7%,and 31.3-87.2%,*** N application increased sclerenchymal and parenchymal tissue areas of the vascular bundle at the culm wall of the base second ***,optimized N application upregulated genes involved in lignin and cellulose synthesis,thereby promoting lower internodes on the rice stem and enhancing lodging *** N application in RC significantly reduced the lodging index by 1.8-19.5%and sta

关键词： rice lodging resistance nitrogen regulation anatomical structure rice-crayfish coculture