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The BTB/TAZ domain-containing protein CmBT1-mediated CmANR1 ubiquitination negatively regulates root development in chrysanthemum

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Journal of Integrative Plant Biology 2024年第2期66卷 285-299页

作者： Lian-Da Du Zhang-Ji Guan Yan-Hong Liu Hui-Dong Zhu Quan Sun Da-Gang Hu Cui-Hui Sun Shandong Collaborative Innovation Center of Fruit&Vegetable Quality and Efficient Production College of Horticulture Science and EngineeringShandong Agricultural UniversityTaian 271018China

Roots are fundamental for plants to adapt to variable environmental *** development of a robust root system is orchestrated by numerous genetic determinants and,among them,the MADS-box gene ANR1 has garnered substantial *** research has demonstrated that,in chrysanthemum,CmANR1positively regulates root system ***,the upstream regulators involved in the CmANR1-mediated regulation of root development remain *** this study,we successfully identified bric-a-brac,tramtrack and broad(BTB)and transcription adapter putative zinc finger(TAZ)domain protein CmBT1 as the interacting partner of CmANR1 through a yeasttwo-hybrid(Y2H)screening ***,we validated this physical interaction through bimolecular fluorescence complementation and pull-down *** assays revealed that CmBT1 exerted a negative influence on root development in *** both in vitro and in vivo assays,it was evident that CmBT1mediated the ubiquitination of CmANR1 through the ubiquitin/26S proteasome *** ubiquitination subsequently led to the degradation of the CmANR1 protein and a reduction in the transcription of CmANR1-targeted gene CmPIN2,which was crucial for root development in *** analysis suggested that CmBT1 modulated root development,at least in part,by regulating the level of CmANR1 ***,these findings shed new light on the regulatory role of CmBT1 in degrading CmANR1 through ubiquitination,thereby repressing the expression of its targeted gene and inhibiting root development in chrysanthemum.

关键词： chrysanthemum MADS-box transcription factor root development

Genome-wide identification and characterization of the PbrATG family in Pyrus bretschneideri and functional analysis of PbrATG1a in response to Botryosphaeria dothidea

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Horticultural Plant Journal 2024年第2期10卷 327-340页

作者： Yun Wang Xun Sun Zhenwu Zhang Zhihua Xie Kaijie Qi Shaoling Zhang Center of Pear Engineering Technology Research State Key Laboratory of Crop Genetics and Germplasm EnhancementCollege of HorticultureNanjing Agricultural UniversityNanjingJiangsu 210095China

The pear is an economic fruit that is widely planted around the world and is loved by people for its rich nutritional value. Autophagy is a self-protection mechanism in eukaryotes, and its occurrence often accompanied by the degradation of damaged substances in cells and the recycling of nutrients. Autophagy is one of the mechanisms through which plants respond to environmental stress and plays an important role in plant development and stress resistance. Functional studies of autophagy-related genes (ATGs) have been performed on a variety of plant species, but little information is available on the ATG family in pear (Pyrus bretschneideri Rehd). Therefore, we analyzed the evolutionary dynamics and performed a genome-wide characterization of the PbrATG gene family. A total of 28 PbrATG members were *** analysis showed that PbrATGs were more closely related to ATGs of European pear and apple. Evolutionary analysis revealed that whole-genome duplication (WGD) and dispersed duplication events were the main driving forces of PbrATG family *** analysis of different pear tissues showed that all the genes were expressed in different pear tissues, and different PbrATGs are expressed at different times and in different locations. Moreover, all PbrATGs also responded to different abiotic stresses, especially salt and drought stress, which elicited the highest expression levels. Pear seedlings were subsequently infected with Botryosphaeria dothidea (***). The results showed that different PbrATGs had different expression patterns at different infection stages. According to the gene expression data, PbrATG1a was selected as a key autophagy gene for further analysis. Silencing of PbrATG1a reduced the resistance of pear to B. dothidea, which resulted in increased lesions, reactive oxygen species (ROS) contents, antioxidant enzyme activity, and gene expression levels in the silenced pear seedlings after B. dothidea inoculation. In this s

关键词： Autophagy Pear PbrATGs Abiotic stress Botryosphaeria dothidea PbrATG1a

Establishing VIGS and CRISPR/Cas9 techniques to verify RsPDS function in radish

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Journal of Integrative Agriculture 2024年第5期23卷 1557-1567页

作者： Jiali Ying Yan Wang Liang Xu Tiaojiao Qin Kai Xia Peng Zhang Yinbo Ma Keyun Zhang Lun Wang Junhui Dong Lianxue Fan Yuelin Zhu Liwang Liu National Key Laboratory of Crop Genetics&Germplasm Enhancement and Utilization/Key Laboratory of Horticultural Crop Biology and Genetic Improvement(East China)of Ministry of Agriculture and Rural Affairs/College of horticulture Nanjing Agricultural UniversityNanjing210095China College of horticulture and Landscape Architecture Yangzhou UniversityYangzhou 225009China College of Life Sciences Nanjing Agricultural UniversityNanjing 210095China

Virus-induced gene silencing(VIGS)and clustered regularly interspaced short palindromic repeats/CRISPR-associated protein(CRISPR/Cas)systems are effective technologies for rapid and accurate gene function verification in modern plant ***,the investigation of gene silencing and editing in radish remains *** this study,a bleaching phenotype was generated through the knockdown of RsPDS using tobacco rattle virus(TRV)-and turnip yellow mosaic virus(TYMV)-mediated gene silencing *** TYMV-mediated gene silencing efficiency was higher than the TRV-based VIGS system in *** expression level of RsPDS was significantly inhibited using VIGS in'NAU-067'radish *** rootless seedlings of‘NAU-067'were infected with Agrobacterium rhizogenes using the 2300GN-Ubi-RsPDS-Cas9 vector with two target *** adventitious roots were blue with GUs staining,and four of these adventitious roots were edited at target sequence 1 of the RsPDS gene as indicated by Sanger ***,albino lines were generated with ***-mediated transformation of radish *** base substitutions and three base deletions occurred at target sequence 2 in Line 1,and three base insertions and three base substitutions occurred at target sequence 1 in Line *** study shows that VIGS and CRISPR/Cas9 techniques can be employed to precisely verify the biological functions of genes in radish,which will facilitate the genetic improvement of vital horticultural traits in radish breeding programs.

关键词： Raphanus sativus L. VIGS CRISPR/Cas9 Agrobacterium rhizogenes A.tumefaciens RsPDS

Transcriptomic analysis on cucumber tendril reveals GLRs play important roles in thigmotropism and thigmomorphogenesis

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Horticultural Plant Journal 2024年第5期10卷 1177-1186页

作者： Mengzhuo Zhang Bowen Wang Shenhao Wang Tongxu Xin Keyi Ye Sanwen Huang Xueyong Yang State Key Laboratory of Vegetable Biobreeding Institute of Vegetables and FlowersChinese Academy of Agricultural SciencesBeijing 100081China Shenzhen branch Guangdong Laboratory of Lingnan Modern AgricultureGenome Analysis Laboratory of the Ministry of Agriculture and Rural AffairsAgricultural Genomics Institute at ShenzhenChinese Academy of Agricultural SciencesShenzhenGuangdong 518120China College of horticulture Northwest A&F UniversityYanglingShaanxi 712100China

Thigmotropism and thigmomorphogenesis are two related and pervasive processes that play crucial roles in plant adaptation to the ***,there have been few investigations into the molecular regulatory mechanisms of these ***(Cucumis sativus L.)tendrils are ideal material for studying thigmotropism and thigmomorphogenesis because they display a combination of the two ***,we generated the transcriptome profiles of cucumber tendrils at the young,stretch,and coiling *** related to receptor proteins,transmembrane transport,and ion transport were significantly enriched among those differentially expressed between *** assays illustrated that three GLUTAMATE RECEPTOR(GLR)genes might play a vital function in perceiving or transducing touch stimulation *** the transcriptomes of tendrils and roots after touch stimulation,we found that genes related to extracellular stimulus and xyloglucan metabolism might have conserved functions in the regulation of *** transcriptome atlas of thigmotropism and thigmomorphogenesis of cucumber tendrils constructed in this study will help further elucidate the molecular mechanisms behind these processes.

关键词： Cucumber Thigmotropism Thigmomorphogenesis Transcriptome Tendril GLUTAMATE RECEPTOR

Identification,characterization,and verification of miR399 target gene in grape

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Horticultural Plant Journal 2024年第1期10卷 91-102页

作者： Maosong Pei Hainan Liu Tonglu Wei Huiying Jin Yihe Yu Mengting Ma Xiaomeng Song Rundong Dai Dalong Guo Henan Engineering Technology Research Center of Quality Regulation and Controlling of Horticultural Plants College of Horticulture and Plant ProtectionHenan University of Science and TechnologyLuoyangHenan 471023China

The microRNA miR399 plays an important role in phosphorus signal transduction pathways in ***,miR399 was shown to be closely associated with berry ripening in grape(Vitis vinifera).The objective of the present study was to elucidate the evolutionary characteristics of the miR399 gene family in grape and to verify the cleavage effect on the target *** miR399s were identified by miRNA sequencing and retrieval from the miRBase *** mature sequences and precursor sequences were subjected to phylogenetic analysis to reconstruct evolutionary trees,as well as secondary structure analysis of the precursor sequence,and prediction of target *** cisacting elements in the miR399 promoter were predicted and the cleavage effect of grape miR399b on its target genes was *** grape miR399 family comprised nine precursor sequences and nine mature *** precursor sequences formed a typical and stable stem—loop *** minimum folding free energy ranged from-55.70 kcal·mol^(-1)to-37.40 kcal·mol^(-1).Multiple sequence alignment revealed that the miR399 family was highly *** grape miR399 family was phylogenetically closely related to peach,apple,and citrus *** miR399s were predicted to target inorganic phosphate transporter 1—3,phospholipase D delta-like,and *** cleavage effect of grape miR399b on the target genes was verified by means of a dual-luciferase assay and 5’*** GUS staining showed that the promoter activity of miR399b was promoted by GA3treatment.

关键词： Grape miR399 Phosphorus metabolism Early ripening

SapBase:A central portal for functional and comparative genomics of Sapindaceae species

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Journal of Integrative Plant Biology 2024年第8期66卷 1561-1570页

作者： Jiawei Li Chengjie Chen Zaohai Zeng Fengqi Wu Junting Feng Bo Liu Yingxiao Mai Xinyi Chu Wanchun Wei Xin Li Yanyang Liang YuanLong Liu Jing Xu Rui Xia State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources College of HorticultureSouth China Agricultural UniversityGuangzhou 510640China Guangdong Laboratory for Lingnan Modern Agriculture South China Agricultural UniversityGuangzhou 510640China Key Laboratory of Biology and Germplasm Enhancement of Horticultural Crops in South China at the Ministry of Agriculture and Rural Affairs South China Agricultural UniversityCollege of HorticultureGuangzhou 510640China

The Sapindaceae family,encompassing a wide range of plant forms such as herbs,vines,shrubs,and trees,is widely distributed across tropical and subtropical *** family includes economically important crops like litchi,longan,rambutan,and *** the wide application of genomic technologies in recent years,several Sapindaceae plant genomes have been decoded,leading to an accumulation of substantial omics data in this *** surge in data highlights the pressing need for a unified genomic data center capable of storing,sharing,and analyzing these ***,we introduced SapBase,that is,the Sapindaceae Genome *** houses seven published plant genomes alongside their corresponding gene structure and functional annotations,small RNA annotations,gene expression profiles,gene pathways,and synteny block *** offers user-friendly features for gene information mining,co-expression analysis,and interspecies comparative genomic ***,we showcased SapBase's extensive capacities through a detailed bioinformatic analysis of a MYB gene in ***,Sap Base could serve as an integrative genomic resource and analysis platform for the scientific exploration of Sapinaceae species and their comparative studies with other plants.

关键词： functional crops unified

Overexpression of auxin/indole-3-acetic acid gene MdIAA24 enhances Glomerella leaf spot resistance in apple(Malus domestica)

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Horticultural Plant Journal 2024年第1期10卷 15-24页

作者： Qian Wang Dong Huang Wenyan Tu Fengwang Ma Changhai Liu State Key Laboratory of Crop Stress Biology for Arid Areas/Shaanxi Key Laboratory of Apple College of HorticultureNorthwest A&F UniversityYanglingShaanxi 712100China

Auxin is throughout the entire life process of plants and is involved in the crosstalk with other hormones,yet its role in apple disease resistance remains *** this study,we investigated the function of auxin/indole-3-acetic acid(IAA)gene Md IAA24 overexpression in enhancing apple resistance to Glomerella leaf spot(GLS)caused by Colletotrichum fructicola(Cf).Analysis revealed that,upon Cf infection,35S::Md IAA24 plants exhibited enhanced superoxide dismutase(SOD)and peroxidase(POD)activity,as well as a greater amount of glutathione(reduced form)and ascorbic acid accumulation,resulting in less H_(2)O_(2)and superoxide anion(O_(2)^(-))in apple ***,35S::Md IAA24 plants produced more protocatechuic acid,proanthocyanidins B1,proanthocyanidins B2 and chlorogenic acid when infected with *** Cf infection,35S::Md IAA24 plants presented lower levels of IAA and jasmonic acid(JA),but higher levels of salicylic acid(SA),along with the expression of related *** overexpression of Md IAA24 was observed to enhance the activity of chitinase andβ-1,3-glucanase in Cfinfected *** results indicated the ability of Md IAA24 to regulate the crosstalk between IAA,JA and SA,and to improve reactive oxygen species(ROS)scavenging and defense-related enzymes *** jointly contributed to GLS resistance in apple.

关键词： Apple MdIAA24 Glomerella leaf spot(GLS) Antioxidant capacity Auxin Salicylic acid Jasmonic acid

Comparative Transcriptomic Analysis of Two Tomato Cultivars with Different Shelf-Life Traits

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Phyton-International Journal of Experimental Botany 2024年第8期93卷 2075-2093页

作者： Abdul Karim Amin Yan He Xianglong Wang Pengwei Li Muhammad Ahmad Hassan Mohammad Yousof Soltani Yiling Zhang Mohammad Alem Amin Ahmad Shah Ahmadzai Yajing Liu Songhu Wang Anhui Province Key Laboratory of Horticultural Crop Quality Biology School of HorticultureAnhui Agricultural UniversityHefei230036China Anhui Academy of Agricultural Sciences Hefei230001China Anhui Province Key Laboratory of Soybean Molecular Breeding and Crop Quality Biology School of AgronomyAnhui Agricultural UniversityHefei230036China Department of horticulture Ghazni UniversityGhazni2301Afghanistan State Key Laboratory of Crop Genetics and Germplasm Enhancement College of HorticultureNanjing Agricultural UniversityNanjing210095China

Tomato(Solanum lycopersicum)is a perishable fruit because of its fast water loss and susceptibility to pathogens in the post-harvest stage,which leads to huge economic losses every *** this study,firstly from 19 tomato cultivars,we screened out two cultivars,Riogrand and SalarF1,having long and short shelf-life spans,***,shelf-life analysis was carried out for both cultivars at room *** exhibited that Riogrand showed higher firmness and less weight loss than *** ethylene production was higher in SalarF1,compared with Riogrand during post-harvest *** performed transcriptomic analysis of both cultivars in different storage *** discovered 2913,2188,and 11,119 differentially expressed genes(DEGs)for three post-harvest stages(0,20,and 40 Days Post-Harvest(DPH)),*** genes are enriched in ethylene biosynthesis and response,as well as cell wall-related *** response factor(ERF)ERF2 and ERF4 were highly expressed in SalarF1 with a short shelf life in 40 DPH,and the ethylene biosynthetic genes ACO1,ACO4,ACS6,and ACS2 were significantly upregulated in *** cell wall loosening and cell wall-related genes XTH3,XTH7,XTH23,1,3;1,4-β-D-Gluc-like,pGlcT1,Cellulase,PGH1,PL5,PL-like 1,PL-like 2 exhibited the highest levels of significance,being notably upregulated in the last stage of *** quantitative real-time polymerase chain reaction(qRT-PCR)analysis validated these gene expressions,which is in line with the transcriptome *** findings suggested that the extension of tomato fruit shelf life is mostly dependent on ethylene biosynthesis,signaling pathway genes,cell wall loosening,and cell wall-associated genes.

关键词： Shelf life transcriptome analysis tomato differentially expressed genes(DEGs) ethylene

CmMYB3-like negatively regulates anthocyanin biosynthesis and flower color formation during the post-flowering stage in Chrysanthemum morifolium

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Horticultural Plant Journal 2024年第1期10卷 194-204页

作者： Lijie Zhou Shenhui Liu Yiguang Wang Yuxi Wang Aiping Song Jiafu Jiang Sumei Chen Zhiyong Guan Fadi Chen State Key Laboratory of Crop Genetics and Germplasm Enhancement The Key Laboratory of LandscapingMinistry of Agriculture and Rural AffairsCollege of HorticultureNanjing Agricultural UniversityNanjingJiangsu 210095China

Color fading caused by a decrease in anthocyanin accumulation during the post-flowering stage significantly affects postharvest quality of ***,the underlying mechanism by which anthocyanin accumulation decreases during the post-flowering stage still unclear,which greatly restricts design of molecular breeding in ***,a chrysanthemum SG7 R2R3 MYB transcription factor(TF),CmMYB3-like,was identified to have a function in regulating anthocyanin biosynthesis during the post-flowering *** real time PCR(qRT-PCR)assays showed that the expression of CmMYB3-like was gradually downregulated when anthocyanin content increased during the flowering stage and was significantly upregulated during the post-flowering *** transformation of chrysanthemum and dual-luciferase assays in *** leaves showed that CmMYB3-like suppressed anthocyanin accumulation by inhibiting the transcription of CmCHS and CmANS directly and that of CmF3H ***,overexpression or suppression of CmMYB3-like did not affect the biosynthesis of flavones or *** transformation of chrysanthemum revealed that the overexpression of CmMYB3-like inhibited anthocyanin accumulation,but its suppression prevented the decrease in anthocyanin accumulation during the post-flowering *** results revealed a crucial role of CmMYB3-like in regulating the color of petals during the post-flowering stage and provided a target gene for molecular design breeding to improve the postharvest quality of chrysanthemum.

关键词： Post-flowering stage Color fading Anthocyanins CmMYB3-like Chrysanthemum Molecular breeding