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Alternative splicing of the PECTINESTERASE gene encoding a cell wall-degrading enzyme affects postharvest softening in grape

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Journal of Integrative Agriculture 2024年第3期23卷 863-875页

作者： Hainan Liu Maosong Pei Charles Ampomah-Dwamena Yaxin Shang Yihe Yu Tonglu Wei Qiaofang Shi Dalong Guo College of horticulture and Plant Protection Henan University of Science and TechnologyLuoyang 471000China Henan Engineering Technology research Center of Quality Regulation and Control of Horticultural Plants Luoyang 471000China The new zealand institute for Plant&food research Limited(PFR) Auckland 1010New Zealand

The firmness of table grape berries is a crucial quality parameter. Despite extensive research on postharvest fruit softening, its precise molecular mechanisms remain elusive. To enhance our comprehension of the underlying molecular factors, we initially identified differentially expressed genes(DEGs) by comparing the transcriptomes of folic acid(FA)-treated and water-treated(CK) berries at different time points. We then analyzed the sequences to detect alternatively spliced(AS) genes associated with postharvest softening. A total of 2,559 DEGs were identified and categorized into four subclusters based on their expression patterns, with subcluster-4 genes exhibiting higher expression in the CK group compared with the FA treatment group. There were 1,045 AS-associated genes specific to FA-treated berries and 1,042 in the CK-treated berries, respectively. Gene Ontology(GO) annotation indicated that the AS-associated genes in CK-treated berries were predominantly enriched in cell wall metabolic processes,particularly cell wall degradation processes. Through a comparison between treatment-associated AS genes and subcluster-4 DEGs, we identified eight genes, including Pectinesterase 2(VvPE2, Vitvi15g00704), which encodes a cell wall-degrading enzyme and was predicted to undergo an A3SS event. The reverse transcription polymerase chain reaction further confirmed the presence of a truncated transcript variant of VvPE2 in the FA-treated *** study provides a comprehensive analysis of AS events in postharvest grape berries using transcriptome sequencing and underscores the pivotal role of VvPE2 during the postharvest storage of grape berries.

关键词： grape postharvest softening folic acid alternative splicing Pectinesterase 2 alternative 3'splice site(A3SS)

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Genomic selection of eight fruit traits in pear

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Horticultural Plant Journal 2024年第2期10卷 318-326页

作者： Manyi Sun Mingyue Zhang Satish Kumar Mengfan Qin Yueyuan Liu Runze Wang Kaijie Qi Shaoling Zhang Wenjing Chang Jiaming Li Jun Wu College of horticulture State Key Laboratory of Crop Genetics&Germplasm Enhancement and UtilizationNanjing Agricultural UniversityNanjingJiangsu 210095China State Key Laboratory of Crop Biology College of Horticulture Science and EngineeringShandong Agricultural UniversityTai'anShandong 271018China The new zealand institute for Plant and food research Limited Private Bag 1401Havelock North 4157New Zealand Zhongshan Biological Breeding Laboratory NanjingJiangsu 210014China

Genomic selection (GS) has the potential to improve selection efficiency and shorten the breeding cycle in fruit tree breeding. In this study,we evaluated the effect of prediction methods, marker density and the training population (TP) size on pear GS for improving its performance and reducing cost. We evaluated GS under two scenarios:(1) five-fold cross-validation in an interspecific pear family;(2) independent validation. Based on the cross-validation scheme, the prediction accuracy (PA) of eight fruit traits varied between 0.33 (fruit core vertical diameter)and 0.65 (stone cell content). Except for single fruit weight, a slightly better prediction accuracy (PA) was observed for the five parametrical methods compared with the two non-parametrical methods. In our TP of 310 individuals, 2 000 single nucleotide polymorphism (SNP) markers were sufficient to make reasonably accurate predictions. PAs for different traits increased by 18.21%-46.98%when the TP size increased from 50to 100, but the increment was smaller (-4.13%-33.91%) when the TP size increased from 200 to 250. For independent validation, the PAs ranged from 0.11 to 0.45 using rrBLUP method. In summary, our results showed that the TP size and SNP numbers had a greater impact on the PA than prediction methods. Furthermore, relatedness among the training and validation sets, and the complexity of traits should be considered when designing a TP to predict the test panel.

关键词： Pear Pyrus Prediction method TP size SNP marker number

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Characterization of physicochemical and immunogenic properties of allergenic proteins altered by food processing:a review

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food Science and Human Wellness 2024年第3期13卷 1135-1151页

作者： Enning Zhou Qiangqiang Li Dan Zhu Gang Chen Liming Wu institute of Apicultural research Chinese Academy of Agricultural SciencesBeijing 100093China Department of food Science University of OtagoDunedin 9016New Zealand School of food and Health Beijing Technology and Business UniversityBeijing 100048China

food allergens are mainly naturally-occurring proteins with immunoglobulin E(IgE)-binding *** the structural and immunogenic characteristics of allergenic proteins is essential in assessing whether and how food processing techniques reduce *** here discuss the impacts of food processing technologies on the modification of physicochemical,structural,and immunogenic properties of allergenic *** techniques for characterizing changes in these properties of food allergens are *** processing helps to reduce allergenicity by aggregating or denaturing proteins,which masks,modifies,or destroys antigenic epitopes,whereas,it cannot eliminate allergenicity completely,and sometimes even improves allergenicity by exposing new ***,most food processing techniques have been tested on purified food allergens rather than food products due to potential interference of other food *** provide guidance for further development of processing operations that can decrease the allergenicity of allergenic food proteins without negatively impacting the nutritional profile.

关键词： food allergens Protein structural characterization Immunogenicity evaluation food processing modification

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DNA methylation controlling abscisic acid catabolism responds to light to mediate strawberry fruit ripening

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Journal of Integrative Plant Biology 2024年第8期66卷 1718-1734页

作者： Yunfan Sun Xiaofang Yang Rongrong Wu Shouzheng Lv Yunduan Li Haoran Jia Yuying Yang Baijun Li Wenbo Chen Andrew C.Allan Guihua Jiang Yan-Na Shi Kunsong Chen College of Agriculture&Biotechnology Zhejiang UniversityZijingang CampusHangzhou 310058China institute of horticulture Zhejiang Academy of Agricultural SciencesHangzhouZhejiang 310021China Zhejiang Provincial Key Laboratory of Horticultural Plant Integrative Biology Zhejiang UniversityZijingang CampusHangzhou 310058China The State Agriculture Ministry Laboratory of Horticultural Plant Growth Development and Quality ImprovementZhejiang UniversityZijingang CampusHangzhou 310058China new zealand institute for Plant&food research Limited Private Bag 92169AucklandNew Zealand School of Biological Sciences University of AucklandPrivate Bag 92019AucklandNew Zealand

Phytohormones,epigenetic regulation and environmental factors regulate fruit ripening but their interplay during strawberry fruit ripening remains to be *** this study,bagged strawberry fruit exhibited delayed ripening compared with fruit grown in normal light,correlating with reduced abscisic acid(ABA) *** of the key ABA catabolism gene,ABA 8′-hydroxylase FaCYP707A4,was induced in bagged *** light exclusion whole genome DNA methylation levels were up-regulated,corresponding to a delayed ripening process,while DNA methylation levels in the promoter of FaCYP707A4 were suppressed,correlating with increases in transcript and decreased ABA *** indicated FaCRY1,a blue light receptor repressed in bagged fruit and FaAGO4,a key protein involved in RNA-directed DNA methylation,could bind to the promoter of *** interaction between FaCRY1 and FaAGO4,and an increased enrichment of FaAGO4 directed to the FaCYP707A4 promoter in fruit grown under light suggests FaCRY1 may influence FaAGO4 to modulate the DNA methylation status of the FaCYP707A4 ***,transient overexpression of FaCRY1,or an increase in FaCRY1 transcription by blue light treatment,increases the methylation level of the FaCYP707A4 promoter,while transient RNA interference of FaCRY1 displayed opposite *** findings reveal a mechanism by which DNA methylation influences ABA catabolism,and participates in light-mediated strawberry ripening.

关键词： ABA catabolism DNA methylation light ripening strawberry

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The MADS-box gene RhAGL6 plays a master role in regulating the receptacle malformation in rose at low temperature

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Horticultural Plant Journal 2024年第5期10卷 1214-1229页

作者： Weikun Jing Shuai Zhang Qingcui Zhao Yang Liu Liangjun Zhao Junping Gao Nan Ma Xiaofeng Zhou Yonghong Li School of food and Drug Shenzhen PolytechnicShenzhen 518055China Department of Ornamental horticulture College of HorticultureChina Agricultural UniversityBeijing 100193China Postdoctoral Innovation Practice Base Shenzhen PolytechnicShenzhen 518055China Flower research institute of Yunnan Academy of Agricultural Sciences KunmingYunnan 650205China

Low temperature usually results in the developmental deformity of flower organs,immensely affecting the quality of rose ***,it's largely unknown about the regulatory mechanisms activated by low ***,we used a low temperature-sensitive Rosa hybrida cv.‘Peach Avalanche’to screen a MADS-box gene RhAGL6 via conjoint analysis between RNA sequencing(RNA-seq)and whole-genome bisulfite sequencing(WGBS).Furthermore,we found that low temperature induced the hypermethylation and elevated histone 3 lys-27 trimethylation(H3K27me3)level on the RhAGL6 promoter,leading to decreased RhAGL6 *** addition,RhAGL6 silencing resulted in the formation of abnormal *** also found that the levels of gibberellins(GA3)and abscisic acid(ABA)in the receptacle under low temperature were lower and higher,respectively,than under normal *** activity analysis revealed that GA3 significantly activated RhAGL6 promoter activity,whereas ABA inhibited ***,we propose that RhAGL6 regulates rose receptacle development by integrating epigenetic regulation and phytohormones signaling at low temperature.

关键词： Rosa hybrida Low temperature RhAGL6 Receptacle development DNA methylation H3K27me3 Phytohormone

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The in vitro digestion fates of diacylglycerol under different intestinal conditions:a potential lipid source for lipid indigestion patients

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food Science and Human Wellness 2024年第2期13卷 1079-1092页

作者： Qingqing Xu Weifei Wang Dongxiao Sun-Waterhouse Qian Zou Menglei Yan Xuan Liu Dongming Lan Yonghua Wang School of food Science and Engineering South China University of TechnologyGuangzhou 510640China Sericultural and Agri-food research institute Guangdong Academy of Agricultural SciencesGuangzhou 510610China School of Chemical Sciences The University of AucklandPrivate Bag 92019New Zealand Guangdong Youmei institute of Intelligent Bio-manufacturing Co. Ltd.Foshan 528200China

The in vitro digestion models mimicking the gastrointestinal(GI)tract of general population and lipid indigestion patients(with lower levels of bile salts or pancreatic lipase)were selected to investigate whether diacylglycerols(DAGs)are potential good lipid sources for these *** oil-based DAG(LD)and linseed oil(LT)were ***-based emulsion((83.74±1.23)%)had higher lipolysis degree than LT-based emulsion((74.47±1.16)%)when monitoring the GI tract of normal population as previously *** conditions seriously decreased the digestive degree of LT-based emulsion((40.23±2.48)%-(66.50±3.70)%)while showed less influence on LD-based emulsion((64.18±2.41)%-(81.85±3.45)%).As opposed to LT-based emulsion,LD-based emulsion exhibited preference for releasing unsaturated fatty acids(especially oleic acid andα-linolenic acid)due to their different glycerolipid ***-based emulsion showed potential for providing lipids and nutrients(including essential fatty acids)for lipid indigestion patients.

关键词： Diacylglycerol In vitro digestion Lipolysis level Cholestatic Exocrine pancreatic insufficiency

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Genome assembly of autotetraploid Actinidia arguta highlights adaptive evolution and enables dissection of important economic traits

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Plant Communications 2024年第6期5卷 173-192页

作者： Xue-Mei Lu Xiao-Fen Yu Guo-Qiang Li Ming-Hao Qu Huan Wang Chuang Liu Yu-Ping Man Xiao-Han Jiang Mu-Zi Li Jian Wang Qi-Qi Chen Rui Lei Cheng-Cheng Zhao Yun-Qiu Zhou Zheng-Wang Jiang Zuo-Zhou Li Shang Zheng Chang Dong Bai-Lin Wang Yan-Xiang Sun Hui-Qin Zhang Jie-Wei Li Quan-Hui Mo Ying Zhang Xin Lou Hai-Xu Peng Ya-Ting Yi He-Xin Wang Xiu-Jun Zhang Yi-Bo Wang Dan Wang Li Li Qiong Zhang Wen-Xia Wang Yongbo Liu Lei Gao Jin-Hu Wu Yan-Chang Wang CAS Key Laboratory of Plant Germplasm Enhancement and Specialty Agriculture Wuhan Botanical GardenChinese Academy of SciencesWuhanHubeiChina Key Laboratory of Western China’s Environmental Systems(Ministry of Education) College of Earth and Environmental SciencesLanzhou UniversityLanzhouGansuChina College of Life Sciences University of Chinese Academy of SciencesBeijingChina Wuhan Frasergen Bioinformatics Co. LtdWuhanHubeiChina institute of Soil and Fertilizer Anhui Academy of Agricultural SciencesHefeiChina College of Agricultural Sciences Xichang UniversityXichangSichuanChina Department of horticulture Heilongjiang Academy of Agricultural SciencesHarbinHeilongjiangChina College of Life Sciences Langfang Normal UniversityLangfangHebeiChina institute of horticulture Zhejiang Academy of Agricultural SciencesHangzhouZhejiangChina Guangxi institute of Botany Chinese Academy of SciencesGuilinGuangxiChina Xi’an Botanical Garden of Shaanxi Province Institute of Botany of Shaanxi ProvinceXi’anShaanxiChina institute of Modern Agricultural research Dalian UniversityDalianLiaoningChina Bioinformatics Center College of Plant Science and TechnologyBeijing University of AgricultureBeijingChina College of Agriculture Eastern Liaoning UniversityDandongLiaoningChina Dalian institute of Chemical Physics Chinese Academy of SciencesDalianLiaoningChina State Environmental Protection Key Laboratory of Regional Eco-process and Function Assessment Chinese Research Academy of Environmental SciencesBeijingChina Hubei Hongshan Laboratory WuhanHubeiChina The new zealand institute for Plant and food research Limited AucklandNew Zealand

Actinidia arguta,the most widely distributed Actinidia species and the second cultivated species in the genus,can be distinguished from the currently cultivated Actinidia chinensis on the basis of its small and smooth fruit,rapid softening,and excellent cold *** evolution of tetraploid Actinidia species and the genetic basis of their important agronomic traits are still ***,we generated a chromosome-scale genome assembly of an autotetraploid male *** *** genome assembly was 2.77 Gb in length with a contig N50 of 9.97 Mb and was anchored onto 116 *** and clustering of 101 geographically representative accessions showed that they could be divided into two geographic groups,Southern and Northern,which first diverged 12.9 million years *** underwent two prominent expansions and one demographic bottleneck from the midPleistocene climate transition to the late *** genomics studies using paleoclimate data enabled us to discern the evolution of the species’adaptation to different historical *** genes(AaCEL1,AaPME1,and AaDOF1)related to flesh softening were identified by multi-omics analysis,and their ability to accelerate flesh softening was verified through transient expression assays.A set of genes that characteristically regulate sexual dimorphism located on the sex chromosome(Chr3)or autosomal chromosomes showed biased expression during stamen or carpel *** chromosome-level assembly of the autotetraploid *** genome and the genes related to important agronomic traits will facilitate future functional genomics research and improvement of ***.

关键词： kiwiberry dioecism adaptive evolution paleoclimate GEA rapid softening

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A review:the mechanism of plant-derived polysaccharides on osteoblasts and osteoclasts

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未来食品学报(英文) 2024年第3期4卷 183-192页

作者： Mengjie Ren Adel F.Ahmed Meng Li Menghan Li Zhiruo Yan Jinmei Wang National R&D Center for Edible Fungus Processing Technology Henan UniversityKaifeng 475004China Joint International research Laboratory of food&Medicine Resource Function Henan ProvinceKaifeng 475004China Medicinal and Aromatic Plants researches Department Horticulture Research InstituteAgricultural Research CenterGiza 12511Egypt

Bone loss and deterioration of bone microarchitecture would increase the bone fragility and fracture risk,leading to the *** and more evidences proved that plant-derived polysaccharides could have a remarkable influence on osteoblasts and osteoclasts,exerting anti-osteoporosis *** to the previous research,the extract of Cibotium barumoz,Achyranthes bidentata,Curculigo orchioides,Epimedium brevicornum,Angelica sinensis,Polygonatum sibiricum,Dendrobium officinale,Morinda officinalis,Nelumbo mucifera,Diospyros kaki,Hordeum vulgare,Cistanche deserticola,Commiphora Myrrha and other plant-derived polysaccharides could benefit to the osteoblasts and *** essential mechanisms are mainly related to the activation or inhibition of many factors,including runt-related transcription factor 2(Runx2),B-catenin,osterix(Osx),activator protein-1(AP-1),osteocalcin(OCN/BGP),alkaline phosphatase(ALP),osteopontin(OPN),bone morphogenetic protein(BMP),phosphatidylinositol 3-kinase(PI3K)/C-Jun N-terminal kinase(JNK)/extracellular regulated protein kinase(ERK),osteoprotegerin(OPG),receptor activator of nuclear factor-kB(RANK),monocyte/macrophage colony-stimulating factor(M-CSF),tumor necrosis factor receptor-associated factor 6(TRAF-6),receptor activator of nuclear factor(NF)-KB ligand(RANKL),nuclear factor of activated T cells 1(NFATc1),c-Fos,matrix metallopeptidase-9(MMP-9),glycogen synthase kinase 3β(GSK3B)/B-catenin,nuclear factor E2-related factor 2(Nf2),as well as these related pathways,such as Wnt/p-catenin,BMP-2/SMAD1/5/8,PI3K/AKT,OPG/RANKL/RANK,NF-κB,MAPKs,*** plant-derived polysaccharides could improve the dynamic balance of bone formation and resorption through promoting the differentiation and maturation of osteoblast or inhibiting its *** reviewed plant-derived polysaccharides and their regulating mechanisms on the osteoclasts and osteoblasts provide the evidences for the development of osteoporosis therapeutics.

关键词： Osteoporosis Plant-derived polysaccharides Osteogenesis promotion Osteoclasts inhibition

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Toward to agricultural green development by multi-objective zoning and nitrogen nutrient management:a case study in the Baiyangdian Basin,China

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Frontiers of Agricultural Science and Engineering 2024年第1期11卷 140-154页

作者： Xiaomeng ZHANG Xiangwen FAN Wenqi MA Zhaohai BAI Jiafa LUO Jing YANG Ling LIU Jianjie ZHANG Lin MA College of Resources and Environmental Sciences Hebei Agricultural UniversityBaoding 071000China Center for Agricultural Resources research Institute of Genetic and Developmental BiologyChinese Academy of SciencesShijiazhuang 050022China Ruakura research Centre AgResearch LimitedHamilton 3240New Zealand

Although China has achieved great advancements toward national food security,the country is still confronted with a range of challenges,including natural resource stress,imbalanced diets and environmental *** management of crop–livestock systems is the key measure to realize agricultural green ***,optimized management of crop–livestock systems that use multi-objective zoning is *** study employed a multi-objective zoning management approach to comprehensively analyze four indicators:ammonia volatilization,nitrogen surplus,soil carrying capacity and ecological red line *** its significant ecological integrity and a strong emphasis on sustainability,the Baiyangdian Basin serves as a unique and suitable test case for conducting analyses on multi-objective nutrient optimization management,with the aim to facilitate the agricultural green *** study finds that less than 8%of the area in the Baiyangdian Basin meet the acceptable environmental indicator standard,whereas around 50%of the area that had both nitrogen surplus and ammonia volatilization exceeded the *** of unified management,that is,the same management technique across the study areas,could result in an increase of areas meeting environmental indicator thresholds to 21.1%.This project developed a novel multi-indicator partition optimization method,in which distinct measures are tailored for different areas to satisfy multiple environmental *** of this method,could potentially bring more than 50%area below the threshold,and areas with ammonia emissions and nitrogen surplus could be reduced to 15.8%.The multi-indicators partition optimization method represents a more advanced and efficiency-oriented management approach when compared to unified *** approach could be regarded as the best available option to help China achieve agricultural transformation to improve efficient production and reduce e

关键词： Agricultural green development Baiyangdian Basin environmental emission threshold partition management

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Alpine grassland degradation intensifies the burrowing behavior of small mammals:evidence for a negative feedback loop

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Integrative Zoology 2024年第2期19卷 240-252页

作者： Zaiwei WANG Jiawen YAN Amy MARTIN Dianne HBRUNTON Jiapeng QU Jin-Sheng HE Weihong JI Zhibiao NAN State Key Laboratory of Herbage Improvement and Grassland Agro-Ecosystems College of Pastoral Agriculture Science and TechnologyLanzhou UniversityLanzhouChina Manaaki Whenua-Landcare research LincolnNew Zealand School of Natural Sciences Massey University(Albany Campus)AucklandNew Zealand Key Laboratory of Adaptation and Evolution of Plateau Biota Northwest Institute of Plateau BiologyChinese Academy of SciencesXiningChina Qinghai Haibei National Field research Station of Alpine Grassland Ecosystem Northwest Institute of Plateau BiologyChinese Academy of SciencesXiningChina institute of Ecology College of Urban and Environmental Sciencesand Key Laboratory for Earth Surface Processes of the Ministry of EducationPeking UniversityBeijingChina

Globally,grassland degradation is an acute ecological *** alpine grassland on the Tibetan Plateau,increased densities of various small mammals in degraded grassland are assumed to intensify the degradation process and these mammals are subject to lethal ***,whether the negative impact of small mammals is solely a result of population size or also a result of activity and behavior has not been *** this study,we use plateau pika as a model to compare population size,core area of colony,and the number of burrow entrances and latrines between lightly and severely degraded *** test whether the alleged contribution of pika to grassland degradation is a result of increased population size or increased burrowing activities of individuals in response to lower food *** found that grassland degradation resulted in lower plant species richness,plant height,and ***,the overall population size of pika was not significantly affected by location in lightly and severely degraded ***,pika core areas in severely grassland degradation were significantly larger and had significantly higher densities of burrows and *** study provides convincing evidence that habitat-induced changes in the behavior of small,burrowing mammals,such as pika,can exacerbate grassland *** finding has significant implications for managing small mammals and restoring degraded grassland ecosystems.

关键词： burrowing behavior grassland degradation plateau pika population size small mammals

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