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Assessing the conservation impact of Chinese indigenous chicken populations between ex-situ and in-situ using genome-wide SNPs

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Journal of Integrative Agriculture 2024年第3期23卷 975-987页

作者： Wenting Li Chaoqun Gao Zhao cai Sensen Yan Yanru Lei Mengya Wei Guirong Sun Yadong tian Kejun Wang Xiangtao Kang College of Animal Science and Technology Henan Agricultural UniversityZhengzhou 450002China The Shennong Laboratory Zhengzhou 450002China

Conservation programs require rigorous evaluation to ensure the preservation of genetic diversity and viability of conservation populations. In this study, we conducted a comparative analysis of two indigenous Chinese chicken breeds, Gushi and Xichuan black-bone, using whole-genome SNPs to understand their genetic diversity, track changes over time and population structure. The breeds were divided into five conservation populations(GS1, 2010, ex-situ;GS2, 2019, ex-situ;GS3, 2019, in-situ;XB1, 2010, in-situ;and XB2, 2019, in-situ) based on conservation methods and generations. The genetic diversity indices of three conservation populations of Gushi chicken showed consistent trends, with the GS3 population under in-situ strategy having the highest diversity and GS2 under ex-situ strategy having the lowest. The degree of inbreeding of GS2 was higher than that of GS1 and GS3. Conserved populations of Xichuan black-bone chicken showed no obvious changes in genetic diversity between XB1 and XB2. In terms of population structure, the GS3 population were stratified relative to GS1 and GS2. According to the conservation priority, GS3 had the highest contribution to the total gene and allelic diversity in GS breed, whereas the contribution of XB1 and XB2 were similar. We also observed that the genetic diversity of GS2 was lower than GS3, which were from the same generation but under different conservation programs(in-situ and ex-situ). While XB1 and XB2 had similar levels of genetic diversity. Overall, our findings suggested that the conservation programs performed in ex-situ could slow down the occurrence of inbreeding events, but could not entirely prevent the loss of genetic diversity when the conserved population size was small, while in-situ conservation populations with large population size could maintain a relative high level of genetic diversity.

关键词： genome-wide SNPs conservation genetic diversity ex-situ in-situ

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Construction of RuO2-Ru/MoO2@carbon cloth bifunctional electrocatalyst for efficient overall water splitting

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Rare Metals 2024年第10期43卷 5095-5104页

作者： Jia-Lin cai Jing-Yi Fan Xu-Dong Zhang Xin Xie Wan-Yu tian Xin-Gang Zhang Jie Ding Yu-Shan Liu College of Material Henan Key Laboratory of Aeronautical Materials and Application TechnologyZhengzhou University of Aeronautics The Green Catalysis Center and College of ChemistryZhengzhou University

Efficient bifunction electrocatalyst is extremely interesting for electrochemical overall water splitting （OWS）.Herein,a new RuO2-Ru/MoO2@CC（RRM/CC） bifunctional electrocatalyst was prepared via a solid phase reaction *** obtain a suitable precursor for SPR,MoS2nanosheets and RuO2nanoparticles （NPs）were sequentially loaded onto carbon cloth conductive ***,the prepared RuO2/MoS2/CC precursor was sealed in a furnace and annealed in Ar to trigger the redox *** SPR,active RuO2-Ru/MoO2units containing metal–metal oxide interfaces were formed on CC substrate *** optimized RRM/CC sample annealed at 400℃ exhibited a overpotential of 13 m V for hydrogen evolution reaction （HER） and 231 mV for oxygen evolution reaction （OER） at 10 mA·cm-2under alkaline condition,respectively,which can be deduced to the modulated electronic structure and unique hierarchica *** addition,a low cell voltage of 1.48 V for OWS was required at 10 mA·cm-2under alkaline condition Meanwhile,RRM/CC exhibited excellent pH-independent durability.

关键词： Bifunctional Electrocatalyst Overall water splitting Ru RuO2

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Identification of porcine fast/slow myogenic exosomes and their regulatory effects on lipid accumulation in intramuscular adipocytes

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Journal of Animal Science and Biotechnology 2024年第4期15卷 1512-1527页

作者： tiantian Zhao Tingting tian He Yu Chaoyue Cao Ziyi Zhang Zhaozhao He Zeqiang Ma Rui cai Fengna Li Weijun Pang Laboratory of Animal Fat Deposition&Muscle Development College of Animal Science and TechnologyNorthwest A&F UniversityYangling 712100ShaanxiChina Laboratory of Animal Nutritional Physiology and Metabolic Process Key Laboratory of Agro‑ecological Processes in Subtropical RegionInstitute of Subtropical AgricultureChinese Academy of SciencesChangsha 410125HunanChina

Background Pork quality is affected by the type of muscle fibers, which is closely related to meat color, tenderness and juiciness. Exosomes are tiny vesicles with a diameter of approximately 30–150 nm that are secreted by cells and taken up by recipient cells to mediate communication. Exosome-mediated muscle-fat tissue crosstalk is a newly discovered mechanism that may have an important effect on intramuscular fat deposition and with that on meat quality. Various of adipose tissue-derived exosomes have been discovered and identified, but the identification and function of muscle exosomes, especially porcine fast/slow myotube exosomes, remain unclear. Here, we first isolated and identified exosomes secreted from porcine extensor digitorum longus(EDL) and soleus(SOL), which represent fast and slow muscle, respectively, and further explored their effects on lipid accumulation in longissimus dorsi *** Porcine SOL-derived exosomes(SOL-EXO) and EDL-derived exosomes(EDL-EXO) were first identified and their average particle sizes were approximately 84 nm with double-membrane disc-shapes as observed via transmission electron microscopy and scanning electron microscopy. Moreover, the intramuscular fat content of the SOL was greater than that of the EDL at 180 days of age, because SOL intramuscular adipocytes had a stronger lipid-accumulating capacity than those of the EDL. Raman spectral analysis revealed that SOL-EXO protein content was much greater than that of EDL-EXO. Proteomic sequencing identified 72 proteins that were significantly differentially expressed between SOL-EXO and EDL-EXO, 31 of which were downregulated and 41 of which were upregulated in *** Our findings suggest that muscle-fat tissue interactions occur partly via SOL-EXO promoting adipogenic activity of intramuscular adipocytes.

关键词： Adipogenesis Exosome Extensor digitorum longus Intramuscular adipocyte Muscle-fat tissue interaction Pig Soleus

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Hydroxyapatite/palmitic acid superhydrophobic composite coating on AZ31 magnesium alloy with both corrosion resistance and bacterial inhibition

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Frontiers of Materials Science 2024年第1期18卷 71-83页

作者： Hang Zhang Shu cai Huanlin Zhang Lei Ling You Zuo Hao tian Tengfei Meng Guohua Xu Xiaogang Bao Mintao Xue Key Laboratory for Advanced Ceramics and Machining Technology of Ministry of Education Tianjin UniversityTianjin 300072China Department of Orthopedic Surgery Spine CenterChangzheng HospitalNaval Medical UniversityShanghai 200003China

The coating-modified magnesium(Mg)alloys exhibit controllable corrosion resistance,but the insufficient antibacterial performance limits their clinical applications as degradable *** coatings show excellent performance in terms of both corrosion resistance and inhibition of bacterial adhesion and *** this work,a hydroxyapatite(HA)/palmitic acid(PA)superhydrophobic composite coating was fabricated on the Mg alloy by the hydrothermal technique and immersion *** HA/PA composite coating showed superhydrophobicity with a contact angle of 153°and a sliding angle of 2°.The coated Mg alloy exhibited excellent corrosion resistance in the simulated body fluid,with high polarization resistance(77.10 kΩ·cm^(2))and low corrosion current density((0.491±0.015)μA·cm^(-2)).Meanwhile,the antibacterial efficiency of the composite coating was over 98% against *** and *** in different *** results indicate that the construction of such superhydrophobic composite coating(HA/PA)on the Mg alloy can greatly improve the corrosion resistance of Mg alloy implants within the human body and avoid bacterial infection during the initial stages of implantation.

关键词： superhydrophobic coating hydroxyapatite corrosion resistance antibacterial

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Synthesis,Structure and Chemical Bonding of Polyantimony Clusters Containing Coinage Metals[M_(2)Sb_(14)]^(4-)(M=Cu,Ag)

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Chinese Journal of Chemistry 2024年第6期42卷 617-622页

作者： Wei-Xing Chen Yu-He Xu Cui-Cui Wang Lei Qiao Zi-Yan Guo Wen-juan tian Zhong-Ming Sun State Key Laboratory of Element-Organic Chemistry Tianjin Key Lab for Rare Earth Materials and ApplicationsSchool of Materials Science and EngineeringNankai UniversityTianjin300350 China Institute of Molecular Science Shanxi UniversityTaiyuanShanxi030006 China

Binary polyantimony clusters,namely[Cu_(2)Sb_(14)]^(4–) and [Ag_(2)Sb_(14)]^(4–),containing coinage metals,were successfully synthesized and characterized,in which two homoatomic Sb73–subunits are bridged by two coinage metals in η^(4):η^(1) and η^(1):η^(1) coordination modes,***[M_(2)Sb_(14)]^(4-),two bridging Cu ions and two Sb atoms form a planar rhombic unit,which was revealed to have antiaromatic properties by theoretical *** electron structure and bonding analysis confirmed the presence of delocalized bonds in the rhombic unit and the metallophilic interaction between two formal M^(+) ions.

关键词： Polyantimony cluster Copper Silver Antiaromaticity Metallophilic interaction Quantum chemical calculations

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Enhancing growth, liver health, and bile acid metabolism of tilapia(Oreochromis niloticus) through combined cholesterol and bile acid supplementation in plant-based diets

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Animal Nutrition 2024年第2期17卷 335-346页

作者： Jiayuan Jiang Xing Lu Lixue Dong juan tian Jianmin Zhang Zhongbao Guo Yongju Luo Zongbin Cui Hua Wen Ming Jiang College of Fisheries and Life Science Shanghai Ocean University Yangtze River Fisheries Research Institute Chinese Academy of Fishery Sciences Guangdong Provincial Key Laboratory of Microbial Culture Collection and Application State Key Laboratory of Applied Microbiology Southern ChinaInstitute of MicrobiologyGuangdong Academy of Sciences Guangxi Institute of Fisheries

The present study aimed to compare the nutritional effects of cholesterol, bile acids, and combination of cholesterol with bile acids in plant-based diets on juvenile genetically improved farmed tilapia(GIFT;Oreochromis niloticus). The isonitrogenous(321 g/kg crude protein) and isolipidic(76 g/kg crude fat) diets(Con diet) were based on plant protein sources, which included corn gluten meal, soybean meal, cottonseed meal and rapeseed meal. The Con diet was supplemented with 12 g/kg cholesterol(CHO diet), 0.2 g/kg bile acids(BAs diet), a combination of 12 g/kg cholesterol and 0.2 g/kg bile acids(CHO-BAs diet),respectively. Each diet was fed to three tanks in an indoor recirculating aquaculture system for 9 *** showed that compared to the Con group, fish had a higher weight gain rate, hepatosomatic index,and a lower feed conversion ratio in the CHO-BAs group. The highest levels of whole-fish fat and ash were found in the Con group. Serum parameters, including activities of alanine aminotransferase(ALT) and aspartate transaminase(AST), along with levels of glucose(GLU) and triglyceride(TG) except for total cholesterol(TCHO), were lower in the CHO, BAs, and CHO-BAs groups than those in the Con group(P <0.001). Histological examination revealed that fish in the Con group exhibited severe hepatocyte vacuolization and diminished hepatocyte proliferation. Gene expression analysis indicated that the transcriptional levels of bile acid metabolism-related genes(including fxr, fgf19, bsep) were up-regulated in the CHO-BAs group(P < 0.05), whereas cholesterol metabolism-related genes(acly and hmgcr) were downregulated in both CHO and CHO-BAs groups(P < 0.001). Moreover, UPLC-MS/MS analysis revealed that the higher taurine-conjugated bile acids(T-BAs), followed by free bile acids(Free-BAs) and glycine(G-BAs)were determined in tilapia bile. Among these, taurochenodeoxycholic bile acid was the predominant bile acid. Dietary bile acids supplementation also increased the pr

关键词： Bile acid metabolism Tilapia Plant-based feed Cholesterol Liver health

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Machine learning and bioinformatics to identify biomarkers in response to Burkholderia pseudomallei infection in mice

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BIOCELL 2024年第4期48卷 613-621页

作者： YAO FANG FEI XIA FEIFEI tian L EI QU FANG YANG juan FANG ZHENHONG HU HAICHAO LIU Department of Respiratory and Critical Care Medicine General Hospital of Center Theater of PLAWuhan430070China School of Medicine Wuhan University of Science and TechnologyWuhan430065China School of Life Science and Engineering Southwest Jiaotong UniversityChengdu611756China

Objective:In the realm of Class I pathogens,Burkholderia pseudomallei(BP)stands out for its propensity to induce severe *** the intricate interactions between BP and host cells is imperative for comprehending the dynamics of BP infection and discerning biomarkers indicative of the host cell response ***:mRNA extraction from BP-infected mouse macrophages constituted the initial step of our *** gene expression arrays,the extracted RNA underwent conversion into digital *** percentile shift method facilitated data processing,with the identiﬁcation of genes manifesting signiﬁcant differences accomplished through the application of the ***,a comprehensive analysis involving Gene Ontology enrichment and Kyoto Encyclopedia of Genes and Genomes pathway was conducted on the differentially expressed genes(DEGs).Leveraging the ESTIMATE algorithm,gene signatures were utilized to compute risk scores for gene expression *** vector machine analysis and gene enrichment scores were instrumental in establishing correlations between biomarkers and macrophages,followed by an evaluation of the predictive power of the identiﬁed ***:The functional and pathway associations of the DEGs predominantly centered around G protein-coupled receptors.A noteworthy positive correlation emerged between the blue module,consisting of 416 genes,and the ***4,identiﬁed through support vector machine analysis among intersecting genes,indicated a robust interaction with macrophages,suggesting its potential as a robust ***4 exhibited commendable predictive efﬁcacy,with BP infection inducing its expression in both macrophages and mouse lung *** blotting in macrophages conﬁrmed a signiﬁcant upregulation of FZD4 expression from 0.5 to 24 h *** mouse lung tissue,FZD4 manifested higher expression in the cytoplasm of pulmonary epithelial cells in BP-infected lungs than in the

关键词： Burkholderia pseudomallei Microarray assay Machine learning Bioinformatics FZD4

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Five quinolizidine alkaloids with anti-tobacco mosaic virus activities from two species of Sophora

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Chinese Chemical Letters 2024年第6期35卷 380-384页

作者： Ji Zhang Tong Zhang Qiao An Peng Zhang cai-Yan tian Chun-Mao Yuan Ping Yi Zhan-Xing Hu Xiao-Jiang Hao State Key Laboratory of Functions and Applications of Medicinal Plants Guizhou Medical UniversityGuiyang 550014China Natural Products Research Center of Guizhou Province Guiyang 550014China School of Pharmaceutical Sciences Guizhou Medical UniversityGuiyang 550025China School of Pharmacy Guizhou University of Traditional Chinese MedicineGuiyang 550025China State Key Laboratory of Phytochemistry and Plant Resources in West China Kunming Institute of BotanyChinese Academy of ScienceKunming 650201China Research Unit of Chemical Biology of Natural Anti-Virus Products Chinese Academy of Medical SciencesKunming 650201China

Three novel matrine-type alkaloids(1-3)and two unprecedented aloperine-type alkaloids(4 and 5)were isolated from the root of Sophora tonkinensis and the seeds of Sophora alopecuroides ***,compound 1 possessed an unprecedented 6/5/6 tricyclic skeleton,while compounds 2 and 3 characterized by rare 6/6/5/6 tetracyclic system and 6/6/6/6/6 pentacyclic system ***,compound 4 possessed an unprecedented 6/7/6/6 tetracyclic core,and compound 5 characterized by rare 6/6/6/6tetracyclic *** structures were elucidated by comprehensive spectroscopic data analysis and electronic circular dichroism(ECD)*** tests indicated that compound 5 displayed significant anti-tobacco mosaic virus(TMV)activity compared with the positive control ningnanmycin.

关键词： Matrine-type alkaloids Aloperine-type alkaloids Sophora tonkinensis Sophora alopecuroides Anti-tobacco mosaic virus

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Interface optimization of graphene paper-Cu composite prepared by electrodeposition

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Journal of Iron and Steel Research International 2024年第1期31卷 64-73页

作者： Jing Guo Hai-jing Wang Shuang-juan Liu Peng Zhang Jing-yu Tang Wei-yang Zhang Han-jie Guo Peng-cheng Wang cai Meng School of Metallurgical and Ecological Engineering University of Science and Technology BeijingBeijing100083China Institute of High Energy Physics Chinese Academy of SciencesBeijing100049China Advanced Technology and Materials Co. Ltd.Beijing100083China School of Nuclear Science and Technology University of Science and Technology of ChinaHefei230027AnhuiChina

A room-temperature electrodeposition method with an organic electrolyte was developed to fabricate a HNO3-pretreated graphene paper Cu(GP'-Cu)*** improve the interfacial bonding of GP'-Cu composite,magnetron sputtering technology was used to create a"sandwich"structural gradient GP'-Cu *** selection of the intermediate transition layer metal was based on two-dimensional *** electron microscopy,X-ray photoelectron spectroscopy,and other analytical methods confirmed that the addition of an intermediate transition metal(Cr,Ni)layer reduced the gap distance and enhanced the interfacial bonding of the GP'and Cu deposited *** GP'-Ni-Cu composite exhibited the largest increase in tensile strength and *** addition,it had the highest thermal diffusivity and elongation at break among the GP'-Cu,GP'-Cr-Cu and GP'-Ni-Cu composites.

关键词： Graphene paper Two-dimensional disregistry Magnetron sputtering Metal composite

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One-dimensional core-sheath Sn/SnO_(x)derived from MAX phase for microwave absorption

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Journal of Materiomics 2024年第3期10卷 531-542页

作者： Feiyue Hu Peigen Zhang Fushuo Wu Zhihua tian Haifeng Tang Bingbing Fan Rui Zhang Wenwen Sun Longzhu cai Zheng Ming Sun School of Materials Science and Engineering Southeast UniversityNanjing211189China School of Materials Science and Engineering Zhengzhou UniversityZhengzhou450001China The State Key Laboratory of Millimeter Waves School of Information Science and EngineeringSoutheast UniversityNanjing210096China

One-dimensional(1D)metals are highly conductive and tend to form networks that facilitate electron hopping and ***,they have tremendous potential as microwave-absorbing(MA)***,1D metals are mainly precious metals such as gold,silver,nickel,and their preparation methods often have low yield and are not environmentally friendly,which has limited the exploration in this ***,the unique nanolaminate structure and chemical bond characteristics of Ti_(2)SnC MAX phase is successfully taken advantages for large-scale preparation of Sn whiskers,and then,core-sheath Sn/SnO_(x)heterojunctions are obtained by simply annealing at different *** heterojunction annealed at 500℃possesses favorable MA performance with an effective absorption bandwidth of 5.3 GHz(only 1.7 mm)and a minimum reflection loss value of51.97 dB;its maximum radar cross section(RCS)reduction value is 29.59 dB·m^(2),confirming its excellent electromagnetic wave attenuation ***-axis electron holography is used to visually characterize the distribution of charge density at the cylindrical heterogenous interface,confirming the enhanced interfacial polarization *** the diversity of MAX phases and the advantages of the fabrication method(e.g.,green,inexpensive,and easily scalable),this work provides significant guidance for the design of 1D metal-based absorbers.

关键词： Sn/SnO_(x)heterojunctions Ti_(2)SnC MAX phase Microwave absorption Interfacial polarization

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