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中国遗传学会第九次全国会员代表大会暨学术研讨会

作者： ZHANG Hong WANG Chang-You WANG Ya-Juan JI Wan-Quan state key laboratory of crop stress Biology for Arid Areas College of Agronomy(Northwest A&F University)

Wheat(Triticum aestivum) production is seriously threatened by Puccinia striiformis f. *** West(Pst) worldwide,and R-genes are considered the most cost-effective stratagem to minimize the *** most abundant R genes belong to the NB-LRR *** date,hundreds of R genes with NB-LRR domains have been reported and dissected in arabidopsis,rice,barley,maize, and so on,whereas knowledge concerning NB-ARC genes has been limited,especially in hexaploid *** wheat NB-ARC orthologues were identified and characterized,and named TaYRGs(YRGIa,1b,2-6).The cDNA of TaYRG1a consisted of 4147 nucleotides and contained an open reading frame of 2889 nucleotides encoding a polypeptide of 962 amino acids(aa),while TaYRG6 encoded a polypeptide of 136 *** estimated molecular weight of TaYRG1 protein was 108.2 kD with a pI of *** with TaYRG1,the constructs of TaYRG2,YRG3,YRG4, YRG5 and YRG6,showed 675+63,1537,2107,2387 and 2478-bp deletions but contain conserved 5’and 3’ ***,the 2387-bp deletion was replaced with a 551-bp insertion in TaYRG5 Since all of these genes are captured from mRNA and appeared in order following the primary TaYRGi,we inferred that TaYRG2,YRG3,YRG4 and YRG6 were transcribed with exon skipping and alternative 5’ and 3’ splicing site types in the process of post-transcription,while TaYRG5 was formed with intron *** exclusive exons exited in the proceeding of TaYRG4 and *** to TMpred,four transmembrane helices existed at *** analysis indicated that TaYRGs were involved in plant defense against Pst ***,in the compatible interaction,transcript accumulation was nearly *** levels in hyper-susceptible lines,Xiaoyan 22 and Mingxian 169 are substantially lower than that in the common immune wheat lines Shaamnai 139 and Yuanfeng ***,the expression of TaYRGs in immune hexaploid wheat was significantly greater than that in diploid species at

关键词： wheat Puccinia striiformis f.sp.tritici West NB-ARC Subcelluar localization RNAi,enhanced immune resistance

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The apple 14-3-3 protein MdGRF11 interacts with the BTB protein MdBT2 to regulate nitrate deficiency-induced anthocyanin accumulation

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Horticulture Research 2021年第1期8卷 265-278页

作者： Yi-Ran Ren Qiang Zhao Yu-Ying Yang Tian-En Zhang Xiao-Fei Wang Chun-Xiang You Yu-Jin Hao state key laboratory of crop Biology Shandong Collaborative Innovation Center for Fruit and Vegetable Production with High Quality and EfficiencyCollege of Horticulture Science and EngineeringShandong Agricultural UniversityTai-AnShandong 271018China Qingdao Agricultural University QingdaoShandong 266109China

Nitrogen is an important factor that affects plant anthocyanin *** apple,the nitrate-responsive BTB/TAZ protein MdBT2 negatively regulates anthocyanin *** this study,we found that MdBT2 undergoes posttranslational modifications in response to nitrate *** two-hybrid,protein pull-down,and bimolecular fluorescence complementation(BiFC)assays showed that MdBT2 interacts with MdGRF11,a 14-3-3 protein;14-3-3 proteins compose a family of highly conserved phosphopeptide-binding proteins involved in multiple physiological and biological *** interaction of MdGRF11 negatively regulated the stability of the MdBT2 protein via a 26S proteasome-dependent pathway,which increased the abundance of MdMYB1 proteins to activate the expression of anthocyanin biosynthesis-related *** together,the results demonstrate the critical role of 14-3-3 proteins in the regulation of nitrate deficiency-induced anthocyanin *** results provide a novel avenue to elucidate the mechanism underlying the induction of anthocyanin biosynthesis in response to nitrate deficiency.

关键词： nitrate GRF BTB

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H_(2)O_(2)mediates transcriptome reprogramming during Soybean mosaic virus-induced callose deposition in soybean

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The crop Journal 2022年第1期10卷 262-272页

作者： Tianjie Sun Xizhe Sun Fukuan Li Nan Ma Mengxuan Wang Yan Chen Na Liu Yuan Jin Jie Zhang Chunyan Hou Chunyan Yang Dongmei Wang state key laboratory of North China crop Improvement and Regulation Baoding 071000HebeiChina key laboratory of Hebei Province for Plant Physiology and Molecular Pathology Baoding 071000HebeiChina College of Life Sciences Hebei Agricultural UniversityBaoding 071000HebeiChina Market Supervision Administration of Chongli District Zhangjiakou 076350HebeiChina Institute of Cereal and Oil crops Hebei Academy of Agriculture and Forestry SciencesShijiazhuang 050035HebeiChina

The main defense response to Soybean mosaic virus(SMV)infection in soybean[Glycine max(L.)Merr.]is thought to be blockage of intercellular virus transport by callose deposition on *** the specific regulatory mechanism remains largely *** this study,we found that hydrogen peroxide(H_(2)O_(2))signal downstream of NO was associated with the regulation of callose *** H_(2)O_(2)was produced on the cell membrane and cell wall in the incompatible combination of soybean cultivar Jidou 7 and SMV strain N3,whereas no obvious H_(2)O_(2)was observed in the compatible combination of Jidou 7 and strain *** H_(2)O_(2)production was inhibited,callose accumulation induced by SMV infection decreased to a level insufficient to restrict virus transport in the incompatible *** H_(2)O_(2)-associated transcriptome dynamics of soybean during SMV infection was *** and functional analysis using virus-induced gene silencing showed that Gm SEOB and Gm PAP27,two genes regulated by H_(2)O_(2),functioned in resistance by positively regulating the accumulation of callose in response to SMV *** results lay a foundation for further research on the signal transduction and molecular regulation of callose deposition during soybean resistance to SMV infection.

关键词： Callose Soybean mosaic virus H_(2)O_(2) Transcriptome Soybean

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Recent Advances in Understanding Plant Heterosis

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Agricultural Sciences 2015年第9期6卷 1033-1038页

作者： Shouqian Feng Xiaoliu Chen Shujing Wu Xuesen Chen The state key laboratory of crop Biology National Research Center for apple Engineering and Technology College of Horticulture Science and Engineering Shandong Agricultural University Tai’an China

Although heterosis is widely utilized in crop production, its genetic and molecular basis is still elusive. It is arguably that heterosis arises in crosses between genetically and/or epigenetically distinct individuals. Various genetic models have been proposed to explain heterosis, such as dominance and overdominance hypothesis. With the recent advancements in functional genomics, epigenetics, transcriptomics, proteomics, and metabolomics-related technologies, systems-level approaches have been adopted to understand the molecular basis of heterosis. In this review, we gather a brief account of findings from various studies in order to better understand the genetic and molecular basis of heterosis.

关键词： Heterosis Genetic Factor Epigenetic Factor

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VmE02 from Valsa mali is a new pathogen-associated molecular pattern

VmE02 from Valsa mali is a new pathogen-associated molecular...

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中国植物病理学会第十一届全国会员代表大会暨2018年学术年会

作者： Nie Jiajun Yin Zhiyuan Li Zhengpeng Wu Yuxing Huang Lili state key laboratory of crop stress Biology for Arid Areas College of Plant ProtectionNorthwest A&F University

The necrotrophic fungus Valsa mali causes severe necrosis on apple trees,resulting in substantial yield losses in eastern *** the aim to identify cell death-inducing factors of ***,we carried out transient expression of candidate effector proteins in Nicotiana benthamiana,and VmE02,a protein with unknown function was *** analysis revealed that VmE02 is widely spread in fdamentous *** agroinfiltration,we found there exists homologs of VmE02 in both fungi and oomycetes,which can also elicit cell death in *** of VmE02 in *** activated plant immune responses,including ROS burst,callose deposition,and the expression of both salicylic acid and jasmonate signaling ***,VmE02 induced the expression of PTI marker *** virus-induced gene silencing(VIGS) in ***,we found that cell deathinducing activity of VmE02 requires both Brassinosteroid insensitive 1-Associated Kinase 1(NbBAK1),suppressor of BIR1-1(NbSOBIR1),HSP90,and *** out of VmE02 in *** showed no apparent influence on pathogenicity,however,it considerably reduced pathogen ***,VmE02 manipulated resistance to Sclerotinia sclerotiorum and Phytophthora capsici when expressed in *** conclude that VmE02 is a novel PAMP in fungi and oomycetes,and suggest it is also an effector with diverse function.

关键词： Valsamali Cell death Plant immunity Nicotiana benthamiana Filamentous pathogens Pathogen-associated molecular pattern

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An effector protein of the wheat stripe rust fungus targets chloroplasts to suppress chloroplast-mediated host immunity

An effector protein of the wheat stripe rust fungus targets ...

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中国植物病理学会2019年学术年会

作者： Xu Qiang Tang Chunlei Zhao Jinren Sun Shutian Wang Xiaodong Kang Zhensheng Wang Xiaojie state key laboratory of crop stress Biology for Arid Areas and College of Plant Protection Northwest A&F University

Chloroplasts are important for photosynthesis and plant immunity against microbial ***,there is only limited knowledge on fungal effectors targeting chloroplasts to promote infection of plant pathogenic ***,we identified and characterized a novel haustorium-specific protein from Puccinia striformis ***(Pst) that was secreted and translocated into chloroplasts after the cleavage at the predicted transit *** expression of Pst12806 inhibited BAX-induced cell death in Nicotiana and reduced Pseudomonas-induced hypersensitive response in *** suppressed plant basal immunity by reducing callose deposition and the expression of defense-related ***2806 was highly expressed during infection and the growth and development of Pst were compromised in Pst2806 knockdown plants by HIGS,likely due to increased ROS ***2806 interacted with the TaISP protein of the Cyt b6/f complex and the binding of Pst2806 with its C-terminal Rieske domain disrupted the chloroplast *** of Pst2806 in plants decreased the electron transport rate(ETR),reduced photosynthesis,and attenuated the production of chloroplast-derived *** TaISP by VIGS in a susceptible wheat cultivar reduced fungal growth and uredinium development,suggesting an increase in resistance against Pst *** together,our results showed that Pst2806 is translocated into chloroplasts to perturb photosynthesis to avoid triggering cell death and support pathogen survival on live plants,indicating the importance of interfering chloroplast functions during the infection of Pst and other biotrophic pathogens.

关键词： Puccinia striiformis f.sp.tritici(Pst) chloroplast effector photosynthesis plant immunity

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Characteristic of A Nitrogen Regulator VmNRF of Valsa mali

Characteristic of A Nitrogen Regulator VmNRF of Valsa mali

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中国植物病理学会第十一届全国会员代表大会暨2018年学术年会

作者： Zhao Yuhuan Zhang Mian Gao Chen Feng Hao Huang Lili state key laboratory of crop stress Biology for Arid Areas College of Plant ProtectionNorthwest A&F University

The apple Valsa canker,caused by Ascomycete Valsa mali,affects the yield and quality of apple seriously in East *** nitrogen regulator control nitrogen source selection to increase nirogen utilization *** on the genome of ***,a nitrogen regulator gene VmNRF was *** explore the function of VmNRF,the mutant was *** vegetative growth,pathogenicity,stress resistance of the corresponding mutants were *** to wild type strain 03-8,the colony morphology and growth rate of ΔVmNRF on PDA medium and Organic nitrogen medium showed no significant difference,but the growth rate of ΔVmNRF on Zeiss nitrate medium decreased ***’s more,the pathogenicity of ΔVmNRF was reduced significantly when the mutants were inoculated onto apple leaves comparing with ***,no obvious difference when they were inoculated onto apple ***,ΔVmNRF grew more slowly than 03-8 on PDA with 0.05%*** results will contribute to the exploration of the interaction between nirogen metabolism and pathogenicity.

关键词： Valsa mali Nitrogen transcriptional regulation Nutritional preferences Pathogenicity PEG-mediated protoplast transformation

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Inheritance and linkage of virulence genes in Puccinia striiformis *** race virulent to Yr5 via selfing on susceptible barberry

Inheritance and linkage of virulence genes in Puccinia strii...

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中国植物病理学会2021年学术年会

作者： ZHANG Gensheng KANG Zhensheng ZHAO Jie state key laboratory of crop stress Biology for Arid Areas College of Plant ProtectionNorthwest A＆F University

Puccinia striiformis ***（Pst）,the causal pathogen of wheat stripe rust,which seriously threatens the safety of wheat production *** is of quick variability to produce new virulent races,resulting in ineffectiveness of resistance ***,a race virulent to Yr5,TSA-6,was identified in *** this study,120 progenies of the race were obtained by selfing on barberry（Berberis shensiana） as an alternate *** analysis showed that the virulence（V）avirulence（A） characteristics of parental isolate and its progenies were divided into 73 virulence phenotypes（VPs） based on tests 25 single Yr gene *** isolate and all progenies were avirulent to Yr10,Yrl5,Yr26,but only virulent to YrA,indicating that the avirulence/virulence genes were homozygous at those *** analysis indicated that VPs to Yr3 and Yr5,with a ratio of A:V=3:1,were controlled by a dominant gene,and those to Yr2,Yr7,and Yr8,showed a ratio of A:V=1:3,were controlled by a recessive gene,***,the VPs to Yrl,Yr6,Yr9,Yr17,Yr27,Yrsp,Yr25,Yr28,Yr29,represented a ratio of A:V=1:15,were controlled by two complementary recessive genes,and those to YrTrl and Yr32,showed a ratio of A:V=15:1,were controlled by two complementary dominant *** VPs to Yr44,YrTye（A:V=3:13） and Yr4,YrExp2,Yr43（A:V=13:3） were possibly controlled by one dominant gene and one recessive gene,or one dominant gene and one suppressor ***,111 multi-locus genotypes（MLGs） were detected among progenies by using 21 KASP-SNP *** one avirulence/virulence gene loci corresponding to 21 resistance genes,expect for 4 homozygous loci,were constructed in a linkage map,and phenotypes of some progenies were associated with their genotypes each *** results showed that sexual reproduction can produce new virulence and diverse genotypes of Pst.

关键词： wheat stripe rust sexual reproduction selfing virulence variation genetics of virulence/avirulence

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Basidiomycete-specific PsCaMKL1 Encoding a CaMK-like Protein Kinase is Required for Full Virulence of Puccinia striiformis ***

Basidiomycete-specific PsCaMKL1 Encoding a CaMK-like Protein...

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中国植物病理学会2017年学术年会

作者： Jiao Min Kang Zhensheng Guo Jun state key laboratory of crop stress Biology for Arid Areas College of Plant ProtectionNorthwest A&F University

Calcium/calmodulin-dependent kinases(CaMKs) are Ser/Thr protein kinases(PKs)that respond to changes in cytosolic free Ca and play diverse roles in *** fungi,CAMKs are generally classified into four families CAMK1,CAMKL,RAD53,and *** these,CAMKL constitutes the largest *** some fungal plant pathogens members of the CaMKL family have been shown to be responsible for ***,little is known about their role(s) in rust *** this study,we functionally characterized a novel PK gene,PsCaMKL1,from Puccinia striiformis ***(Pst).PsCaMKLl belongs to a group of PKs that is evolutionarily specific to basidiomyceteous *** shows little intra-species polymorphism and cytoplasmic localization in wheat *** transcripts are highly elevated at early infection stages,whereas gene expression is down-regulated in barely germinated urediospores under KN93 *** of PsCaMKLl in fission yeast increased resistance to environmental *** down of PsCaMKLl using host-induced gene silencing(HIGS) reduced the virulence of Pst accompanied by reactive oxygen species(ROS) accumulation and a hypersensitive *** results suggest that PsCaMKLl is a novel pathogenicity factor that exerts it virulence function by regulating ROS production in wheat.

关键词： CaMKs Pst PsCaMKL1 HIGS ROS

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Inheritance and linkage of virulence genes in a Chinese isolate Pshl of the barley stripe rust pathogen Puccinia striiformis ***

Inheritance and linkage of virulence genes in a Chinese isol...

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中国植物病理学会2021年学术年会

作者： DU Zhimin KANG Zhensheng ZHAO Jie state key laboratory of crop stress Biology for Arid Areas College of Plant ProtectionNorthwest A＆F University

Barley stripe rust,caused by Puccinia striiformis ***,is an important fungal disease threating barley production *** disease causes significant yield reduction in barley growing regions as epidemics *** emergence and development of new virulent races can overcome the resistance of barley cultivars becoming susceptible and were responsible for subsequent stripe rust *** this study,a total of 53 progenies were obtained by selfing of a *** *** isolate Pshl on Berberis aggregate serving as an alternate *** parental isolate and its progenies were characterized by phenotyping on 11 barley varieties with different resistance genes,and genotyping with24 polymorphic KASP-SNP *** 53 progenies were classified into 18 virulence phenotypes（VPs）,and generated 27 multi-locus genotypes（MLGs）.All progenies and parental isolate were avirulent to rpsHF,but virulent to rpsTrl and *** VPs of the parental isolate to resistance gene rpsEml,rpsEm2,rpsAst,rpsHi1,rpsHi2,rpsVa1,rpsVa2,rps2,Rpsl.c,Rpsl.b,Rps3,rpsl5,and RpsBab were identified to be *** on the segregation of the virulence/avirulence phenotypes,the VPs to rpsEml,rpsEm2,rpsVa1,rpsVa2,RpsBab and Rpsl.b were controlled by two recessive genes,those to rpsAst,Rps3 and rpsI5 were controlled by one dominant gene and one recessive gene,those to rpsHi1 and rpsHi2 were controlled by two dominant genes,and those to rps2 and Rps1.c were controlled by one recessive *** mapping was constructed to reveal the linkage of 13 virulence/avirulence *** results are useful for understanding the plant-pathogen interactions and developing barley cultivars with effective and durable resistance.

关键词： stripe rust Puccinia striiformis f.sp.hordei sexual production virulence variation

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