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Across two phylogeographic breaks: Quaternary evolutionary history of a mountain aspen (Populus rotundifolia) in the Hengduan Mountains

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Plant Diversity 2024年第3期46卷 321-332页

作者： Jieshi Tang Xiaoyan Fan Richard I.Milne Heng Yang wenjing tao Xinran Zhang Mengyun Guo Jialiang Li Kangshan Mao Key Laboratory of Bio-Resource and Eco-Environment of Ministry of Education College of Life SciencesState Key Laboratory of Hydraulics and Mountain River EngineeringSichuan UniversityChengdu 610065PR China Institute of Molecular Plant Sciences University of EdinburghEdinburgh EH93JHUK School of Ecology and Environment Tibet UniversityLhasa 850000PR China

Biogeographical barriers to gene flow are central to plant *** East Asia,plant distribution is greatly influenced by two phylogeographic breaks,the Mekong-Salween Divide and Tanaka-Kaiyong Line,however,few studies have investigated how these barriers affect the genetic diversity of species that are distributed across *** we used 14 microsatellite loci and four chloroplast DNA fragments to examine genetic diversity and distribution patterns of 49 populations of Populus rotundifolia,a species that spans both the Mekong-Salween Divide and the Tanaka-Kaiyong Line in southwestern *** and migration hypotheses were tested using coalescent-based *** historical gene flow was observed between the western and eastern groups of ***,but substantial flow occurred across both the Mekong-Salween Divide and Tanaka-Kaiyong Line,manifesting in clear admixture and high genetic diversity in the central ***-borne pollen and seeds may have facilitated the dispersal of *** following prevalent northwest winds in the *** also found that the Hengduan Mountains,where multiple genetic barriers were detected,acted on the whole as a barrier between the western and eastern groups of *** niche modeling suggested that *** has undergone range expansion since the last glacial maximum,and demographic reconstruction indicated an earlier population expansion around 600 *** phylogeographic pattern of *** reflects the interplay of biological traits,wind patterns,barriers,niche differentiation,and Quaternary climate *** study emphasizes the need for multiple lines of evidence in understanding the Quaternary evolution of plants in topographically complex areas.

关键词： Chloroplast DNA Microsatellite Phylogeographic break Populus rotundifolia Quaternary history Wind direction

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Exportin家族鉴定及其在尼罗罗非鱼中的表达分析

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西南大学学报（自然科学版） 2024年第1期46卷 77-86页

作者：张清清游慧芹杜康陶文静西南大学生命科学学院/淡水鱼类资源与生殖发育教育部重点实验室重庆400715

输出蛋白(Exportins,XPOs)负责细胞核中蛋白质和RNA的输出,对基因表达调控起着重要的作用,然而Exportin家族的系统进化和表达模式尚不清楚.研究首先对22种代表性动物的Exportin家族进行鉴定并分析了其系统进化,再通过转录组分析和qRT-PC... 详细信息

输出蛋白(Exportins,XPOs)负责细胞核中蛋白质和RNA的输出,对基因表达调控起着重要的作用,然而Exportin家族的系统进化和表达模式尚不清楚.研究首先对22种代表性动物的Exportin家族进行鉴定并分析了其系统进化,再通过转录组分析和qRT-PCR探究了Exportin家族成员在尼罗罗非鱼各组织中的表达水平,最后通过荧光原位杂交对xpo1a,xpo1b和xpo5在尼罗罗非鱼性腺中的细胞定位进行了分析.结果表明:脊椎动物Exportin家族成员的数量在经过第2轮和第3轮全基因组复制的物种中变化不大,而在经过第4轮时显著增加,暗示Exportin家族成员在第4轮全基因组复制中发生了扩张.xpos主要在精巢中表达,其中xpo1a表达最高;xpos在尼罗罗非鱼孵化后5 d和30 d的表达没有雌雄差异,而在孵化后90,180和300 d出现明显差异,其中负责miRNA出核转运的xpo5在精巢中的表达明显高于卵巢.在尼罗罗非鱼卵巢中,xpo1a,xpo1b和xpo5主要在卵原细胞和卵母细胞中表达;在精巢中,xpo1a和xpo5主要在精原细胞和精母细胞中表达,而xpo1b主要在精细胞中表达.研究系统分析了Exportin家族成员的进化及其在尼罗罗非鱼性腺中的表达,为解析其在脊椎动物生殖发育中的作用奠定了基础.

关键词：输出蛋白系统进化分析表达分析尼罗罗非鱼

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Phylogenetic relationships of Cypriniformes and plasticity of pharyngeal teeth in the adaptive radiation of cyprinids

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Science China(Life Sciences) 2019年第4期62卷 553-565页

作者： wenjing tao Lei Yang Richard L.Mayden Shunping He Key Laboratory of Aquatic Biodiversity and Conservation of Chinese Academy of Sciences Institute of Hydrobiology Chinese Academy of Sciences Key Laboratory of Freshwater Fish Reproduction and Development (Ministry of Education) Key Laboratory of Aquatic Science of Chongqing School of Life Sciences Southwest University Florida Museum of Natural History University of Florida Department of Biology Saint Louis University CAS Center for Excellence in Animal Evolution and Genetics Chinese Academy of Sciences

The Cypriniformes comprise approximately 4,200 species accounting for 25% of the diversity of all freshwater fish, which is widely distributed across the world's continents except Antarctica, South America, and Australia. The highest species diversity is found in Southeastern Asia. Despite its remarkable species diversity and broad-scale geographic patterns of distribution, the evolutionary history of this major freshwater fish group remains largely unresolved. To gain insight of the evolutionary history of Cypriniformes, we present a phylogeny of this group using 1 mitochondrial gene and 15 nuclear genes comprising a total of14,061 bp. Bayesian inference using all gene fragments yielded a well resolved phylogeny, which is mostly consistent with topologies obtained from Maximum Likelihood analyses. Our results further confirmed the monophyly of Cypriniformes and seven constituent subclades including Cyprinidae, Catostomidae, Gyrinocheilidae, Balitoridae, Cobitidae, Nemacheilidae, and Botiidae. Bayesian divergence time analysis indicated that the origin of the Cypriniformes was about 193 Mya during the early Jurassic, coinciding with the onset of the Pangaea breakup. The basal divergence of Cypriniformes is 154 Mya during the late Jurassic. Our findings from molecular divergence and biogeographical analysis indicate the most likely initial geographical range of the ancient Cypriniformes was both East and South Asia(Southeastern area of Mesozoic Laurasia). Moreover, the burst in species diversity in Cyprinidae afforded by the nearly worldwide colonization is possibly in response to the plasticity of pharyngeal dentition. The present study demonstrates that the Cypriniformes was about 193 Mya during the early Jurassic,coinciding with the onset of the Pangaea breakup. The plasticity of pharyngeal dentition of cyprinids might contribute to the burst and radiation of this lineage. The phylogenetic and biogeographic analyses in this study help to improve our understanding

关键词： phylogeny biogeographic analyses Cypriniformes pharyngeal teeth adaptive radiation

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不同比例发酵饲料桑替代基础饲粮对肉牛瘤胃发酵、瘤胃细菌与真菌菌群结构的影响

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动物营养学报 2024年第4期36卷 2475-2486页

作者：樊启文陈芳杜恩存陶文静赵娜黄少文郭万正黄静金枫魏金涛湖北省农业科学院畜牧兽医研究所动物胚胎工程及分子育种湖北省重点实验室武汉430064

本研究旨在探究不同比例发酵饲料桑替代基础饲粮对肉牛瘤胃发酵、瘤胃细菌与真菌菌群结构的影响。选取体重为(287.45±22.63)kg、日龄相近的西门塔尔杂交公牛30头,随机分为3组,分别为对照组、NT1和NT2组,每组10个重复。对照组给予基础饲... 详细信息

本研究旨在探究不同比例发酵饲料桑替代基础饲粮对肉牛瘤胃发酵、瘤胃细菌与真菌菌群结构的影响。选取体重为(287.45±22.63)kg、日龄相近的西门塔尔杂交公牛30头,随机分为3组,分别为对照组、NT1和NT2组,每组10个重复。对照组给予基础饲粮,NT1和NT2组分别以10%和20%发酵饲料桑等量替代基础饲粮。试验预试期14 d,正试期116 d。结果表明:1)与对照组相比,NT1组和NT2组瘤胃液戊酸的含量显著提高(P<0.05)。2)与对照组相比,在门水平上,NT2组厚壁菌门与拟杆菌门比值(F/B)显著增加(P<0.05);在属水平上,NT2组普氏菌属(Prevotella)细菌相对丰度显著降低(P<0.05),未分类颤螺旋菌科(unclassified_Oscillospiraceae)和毛螺旋菌科UCG-008(Lachnospiraceae_UCG-008)细菌相对丰度显著提高(P<0.05)。此外,与对照组相比,NT2组中瘤胃细菌富集于环境信息处理途径、信号转导途径、双组分系统和耐药性:抗菌途径的相对丰度显著上升(P<0.05),而富集于其他次级代谢产物生物合成途径和抗生素生物合成途径的相对丰度显著降低(P<0.05)。3)NT1组真菌样本测序鉴定的物种数、ACE、Chao1及香农指数均显著高于对照组(P<0.05);此外,在属水平上,与对照组相比,NT1组中青霉菌属(Penicillium)、葡萄孢盘菌属(Botryotinia)、丝衣霉菌属(Byssochlamys)、木霉菌属(Trichoderma)真菌相对丰度均显著或极显著上调(P<0.05或P<0.01),而红酵母属(Rhodotorula)、锥盖伞属(Conocybe)、未分类角担菌科(unclassified_Ceratobasidiaceae)真菌相对丰度均显著或极显著下调(P<0.05或P<0.01);同时NT2组中红酵母属、锥盖伞属真菌相对丰度相较于对照组也显著下降(P<0.05),未分类角担菌科真菌相对丰度极显著下降(P<0.01)。综上所述,使用不同比例发酵饲料桑替代基础饲粮可提高瘤胃液中戊酸的含量,增加瘤胃真菌菌群的多样性,改变瘤胃细菌和真菌组成结构,从而调节改善瘤胃内环境。

关键词：发酵饲料桑肉牛瘤胃发酵参数菌群结构

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测试片法检测食品中大肠菌群的验证评价

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食品安全导刊 2024年第10期 96-101页

作者：陶文靖董彬焦凤莲周琦曲连海王琦北京美正生物科技有限公司北京102200 北京光明健能乳业有限公司北京101300 通标标准技术服务(青岛)有限公司山东青岛266071

为探究大肠菌群测试片法在食品检测中的可行性,依据国际标准ISO 16140-2:2016中的性能指标验证要求,对MicroFast^(®)大肠菌群测试片法进行包容性、排他性,以及与国家标准《食品安全国家标准食品微生物学检验大肠菌群计数》(GB 4789.3—2... 详细信息

为探究大肠菌群测试片法在食品检测中的可行性,依据国际标准ISO 16140-2:2016中的性能指标验证要求,对MicroFast^(®)大肠菌群测试片法进行包容性、排他性,以及与国家标准《食品安全国家标准食品微生物学检验大肠菌群计数》(GB 4789.3—2016)中方法的一致性验证,采用t-检验和Bland-Altman分析方法进行一致性分析评价。16株目标菌在测试片上形成典型菌落,24株非目标菌中的23株均未在测试片上形成菌落,阿巴特图巴沙门氏菌ATCC 35640在测试片上形成非典型菌落。测试片法和GB 4789.3—2016中方法的检测结果呈正相关(R^(2)>0.976);95%置信区间的样品比例为1∶25,满足不得高于1∶20的要求;所有食品类型的β-期望容忍区间(β-ETI)均在±0.5对数单位范围内,测试片法和GB 4789.3—2016方法具有很好的一致性。MicroFast^(®)大肠菌群测试片法对纯菌株的包容性和排他性良好,在一致性方面符合ISO 16140-2:2016对方法等效性的要求,可作为替代方法,用于检测食品中的大肠菌群。

关键词：测试片法大肠菌群平板计数法

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Cortisol safeguards oogenesis by promoting follicular cell survival

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Science China(Life Sciences) 2022年第8期65卷 1563-1577页

作者： Hesheng Xiao Zhen Xu Xi Zhu Jingrong Wang Qiaoyuan Zheng Qingqing Zhang Chunmei Xu wenjing tao Deshou Wang Key Laboratory of Freshwater Fish Reproduction and Development(Ministry of Education) Key Laboratory of Aquatic Science of ChongqingSchool of Life SciencesSouthwest UniversityChongqing400715China

The role of glucocorticoids in oogenesis remains to be elucidated. cyp11c1 encodes the key enzyme involved in the synthesis of cortisol, the major glucocorticoid in teleosts. In our previous study, we mutated cyp11c1 in tilapia and analyzed its role in spermatogenesis. In this study, we analyzed its role in oogenesis. cyp11c1^(+/-)XX tilapia showed normal ovarian morphology but poor egg quality, as indicated by the mortality of embryos before 3 d post fertilization, which could be partially rescued by the supplement of exogenous cortisol to the mother fish. Transcriptome analyses revealed reduced expression of maternal genes in the eggs of the cyp11c1^(+/-)XX fish. The cyp11c1^(-/-)females showed impaired vitellogenesis and arrested oogenesis due to significantly decreased serum cortisol. Further analyses revealed decreased serum E2 level and expression of amh, an important regulator of follicular cell development, and increased follicular cell apoptosis in the ovaries of cyp11c1^(-/-)XX fish, which could be rescued by supplement of either exogenous cortisol or E2. Luciferase assays revealed a direct regulation of cortisol and E2 on amh transcription via GRs or ESRs. Taken together, our results demonstrate that cortisol safeguards oogenesis by promoting follicular cell survival probably via Amh signaling.

关键词： oogenesis cortisol cyp11c1 Nile tilapia CRISPR/Cas9

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Sn-doped cobalt containing perovskite as the air electrode for highly active and durable reversible protonic ceramic electrochemical cells

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Journal of Advanced Ceramics 2024年第1期13卷 63-72页

作者： Min Fu wenjing Hu Hua Tong Xin Ling Linggui Tan Fanglin Chen Zetian tao School of Resources Environment and Safety EngineeringUniversity of South ChinaHengyang 421001China Department of Mechanical Engineering University of South CarolinaColumbia 29208USA

One potential solution to the problems of energy storage and conversion is the use of reversible protonic ceramic electrochemical cells(R-PCEC),which are based on the solid oxide fuel cell(SOFC)technology and offer a flexible route to the generation of renewable ***,the R-PCEC development faces a range of significant challenges,including slow oxygen reaction kinetics,inadequate durability,and poor round-trip efficiency resulting from the inadequacy of an air *** address these issues,we report novel B-sites doped Pr_(0.5)Ba_(0.5)Co_(0.7)Fe_(0.3)O_(3−δ)(PBCF)with varying amounts of Sn as the air electrode for R-PCEC to further enhance electrochemical performance at lower *** 600℃,R-PCEC with an air electrode consisting of Pr_(0.5)Ba_(0.5)Co_(0.7)Fe_(0.25)Sn_(0.05)O_(3+δ)has achieved peak power density of 1.12 W∙cm^(−2) in the fuel cell mode and current density of 1.79 A∙cm^(−2) in the electrolysis mode at a voltage of 1.3 ***,R-PCECs have shown good stability in the electrolysis mode of 100 *** study presents a practical method for developing durable high-performance air electrodes for R-PCECs.

关键词： triple conducting oxide dual-element doping protonic ceramic electrochemical cells(PCECs) catalytic

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Two haplotype-resolved,gap-free genome assemblies for Actinidia latifolia and Actinidia chinensis shed light on the regulatory mechanisms of vitamin C and sucrose metabolism in kiwifruit

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Molecular Plant 2023年第2期16卷 452-470页

作者： Xue Han Yilin Zhang Qiong Zhang Ni Ma Xiaoying Liu wenjing tao Zhiying Lou Caihong Zhong Xing Wang Deng Dawei Li Hang He Peking University Institute of Advanced Agricultural Sciences Shandong Laboratory of Advanced Agricultural Sciences in WeifangShandong 261325China School of Advanced Agricultural Sciences and School of Life Sciences Peking UniversityBeijing 100871China Key Laboratory of Plant Germplasm Enhancement and Specialty Agriculture Wuhan Botanical GardenThe Chinese Academy of SciencesWuhanHubei 430074China State Key Laboratory of Cellular Stress Biology School of Life SciencesFaculty of Medicine and Life SciencesXiamen UniversityXiamen 361102China

Kiwifruit is a recently domesticated horticultural fruit crop with substantial economic and nutritional value,especially because of the high content of vitamin C in its *** this study,we de novo assembled two telomere-to-telomere kiwifruit genomes from Actinidia chinensis var.‘Donghong’(DH)and Actinidia latifolia‘Kuoye’(KY),with total lengths of 608327852 and 640561626 bp for 29 chromosomes,*** a burst of structural variants involving inversion,translocations,and duplications within 8.39 million years,the metabolite content of DH and KY exhibited differences in saccharides,lignans,and vitamins.A regulatory ERF098 transcription factor family has expanded in KY and Actinidia eriantha,both of which have ultra-high vitamin C *** each assembly phased into two complete haplotypes,we identified allelic variations between two sets of haplotypes,leading to protein sequence variations in 26494 and 27773 gene loci and allele-specific expression of 4687 and 12238 homozygous gene *** metabolome and transcriptome changes during DH fruit development revealed the same dynamic patterns in expression levels and metabolite contents;free fatty acids and flavonols accumulated in the early stages,but sugar substances and amino acids accumulated in the late *** AcSWEET9b gene that exhibits allelic dominance was further identified to positively correlate with high sucrose content in *** with wild varieties and other Actinidia species,AcSWEET9b promoters were selected in red-flesh kiwifruits that have increased fruit sucrose content,providing a possible explanation on why red-flesh kiwifruits are ***,these two gap-free kiwifruit genomes provide a valuable genetic resource for investigating domestication mechanisms and genome-based breeding of kiwifruit.

关键词： kiwifruit genome telomere-to-telomere allele-specific expression vitamin C sugar metabolism

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电沉积辅助真空处理制备铝合金超疏水保护膜及其性能研究

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当代化工 2024年第4期53卷 778-782页

作者：侯珂珂陈新华彭胜闯云圆斌陶文静孟耀伟许昌学院化工与材料学院河南许昌461000

铝合金是工业领域经常用到的金属材料,为了使其成为耐污、耐腐蚀的高性能超疏水材料,以铝合金为基底、硝酸镧为电沉积液,采用电沉积辅助真空处理法不经修饰直接制备出超疏水铝合金表面。通过对所制备超疏水铝合金表面的形貌、化学组成... 详细信息

铝合金是工业领域经常用到的金属材料,为了使其成为耐污、耐腐蚀的高性能超疏水材料,以铝合金为基底、硝酸镧为电沉积液,采用电沉积辅助真空处理法不经修饰直接制备出超疏水铝合金表面。通过对所制备超疏水铝合金表面的形貌、化学组成、浸润性、自清洁、耐腐蚀等方面进行表征和测试可知,所制备铝合金表面存在一层致密的蛛网状微纳米氧化镧粗糙结构,再加上稀土氧化镧本征超疏水的协同作用,使其表现出超疏水特性,对水的接触角可达到160°,滚动角约为5.0°,且具备良好的自清洁、耐磨和耐腐蚀性能。

关键词：超疏水铝合金氧化镧电沉积性能

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Highly Sensitive Ammonia Gas Sensors at Room Temperature Based on the Catalytic Mechanism of N,C Coordinated Ni Single-Atom Active Center

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Nano-Micro Letters 2024年第12期16卷 515-531页

作者： wenjing Quan Jia Shi Min Zeng Wen Lv Xiyu Chen Chao Fan Yongwei Zhang Zhou Liu Xiaolu Huang Jianhua Yang Nantao Hu tao Wang Zhi Yang National Key Laboratory of Advanced Micro and Nano Manufacture Technology Shanghai Jiao Tong UniversityShanghai 200240People’s Republic of China Department of Micro/Nano Electronics School of Electronic Information and Electrical EngineeringShanghai Jiao Tong UniversityShanghai 200240People’s Republic of China Shanghai Key Laboratory of Intelligent Sensing and Detection Technology School of Mechanical and Power EngineeringEast China University of Science and TechnologyShanghai 200237People’s Republic of China

Significant challenges are posed by the limitations of gas sensing mechanisms for trace-level detection of ammonia(NH3).In this study,we propose to exploit single-atom catalytic activation and targeted adsorption properties to achieve highly sensitive and selective NH3 gas ***,Ni singleatom active sites based on N,C coordination(Ni-N-C)were interfacially confined on the surface of two-dimensional(2D)MXene nanosheets(Ni-N-C/Ti_(3)C_(2)Tx),and a fully flexible gas sensor(MNPE-Ni-N-C/Ti_(3)C_(2)Tx)was *** sensor demonstrates a remarkable response value to 5 ppm NH3(27.3%),excellent selectivity for NH3,and a low theoretical detection limit of 12.1 *** analysis by density functional calculation reveals that the Ni single-atom center with N,C coordination exhibits specific targeted adsorption properties for ***,its catalytic activation effect effectively reduces the Gibbs free energy of the sensing elemental reaction,while its electronic structure promotes the spill-over effect of reactive oxygen species at the gas-solid *** sensor has a dual-channel sensing mechanism of both chemical and electronic sensitization,which facilitates efficient electron transfer to the 2D MXene conductive network,resulting in the formation of the NH3 gas molecule sensing ***,the passivation of MXene edge defects by a conjugated hydrogen bond network enhances the long-term stability of MXene-based electrodes under high humidity *** work achieves highly sensitive room-temperature NH3 gas detection based on the catalytic mechanism of Ni single-atom active center with N,C coordination,which provides a novel gas sensing mechanism for room-temperature trace gas detection research.

关键词： Gas sensor Single atom Catalytic activation Targeted adsorption End-sealing passivation

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