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swarming caddisflies in the mid-Cretaceous

National science Review 2024年第8期11卷 125-135页

作者： Jiajia Wang Michael s.engel Weiting Zhang Chungkun shih Rui Qiu Dong Ren College of Life sciences Capital Normal University Key Laboratory of Zoological systematics and Evolution Institute of Zoology Chinese Academy of Sciences Division of Invertebrate Zoology American Museum of Natural History Facultad de Ciencias Biológicas Universidad Nacional Mayor de San Marcos Departamento de Entomología Museo de Historia NaturalUniversidad Nacional Mayor de San Marcos Hebei International Joint Research Center for Paleoanthropology Hebei GEO University Department of Paleobiology National Museum of Natural History Smithsonian Institution National Natural History Museum of China

swarming,as a special form of mating aggregation,is most noteworthy in insects of the orders Ephemeroptera,Diptera,and *** in extant trichopterans is well understood in terms of sex composition,specific mating behaviors,and functional morphological specializations of adults,but an exploration of the evolution of such aggregative behaviors is hampered by the dearth of available examples from the fossil record as well as the ability to reliably distinguish the few gatherings as the result of swarming relative to other taphonomic or behavioral *** we describe five new fossil species of caddisflies preserved in mid-Cretaceous amber from Myanmar,all preserved as large *** aggregations of these five new species can be positively identified as swarms based on morphological traits of wing shape,as well as the presence of particular forms of sexual *** of a phylogenetic reconstruction of both molecular and morphological data as well as ancestral-trait reconstructions and tip-dating analyses indicate that swarming was likely present in the Triassic as a feature of the trichopteran *** most Mesozoic insectivorous predators were diurnal based on morphological evidence,largely nocturnal caddisflies would have been freed from such *** phylogeny also shows a correlation between the rise of nocturnal bat predators from the Paleocene or early Eocene and the repeated loss of swarming from various clades of caddisflies,revealing the potential impact of bat predation on reshaping the behavioral landscape of Trichoptera during the Cenozoic.

关键词： swarming caddisflies Cretaceous ancestral-trait reconstructions

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Comparative analysis of 12 water lily plastid genomes reveals genomic divergence and evolutionary relationships in early flowering plants

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Marine Life science & Technology 2024年第3期6卷 425-441页

作者： Weicai song Wenbo shi Huan Wang Zirui Zhang Ruiqing Tao Jin Liu shuo Wang Michael s.engel Chao shi College of Marine science and Biological Engineering Qingdao University of Science and TechnologyQingdao 266042China Plant Germplasm and Genomics Center Germplasm Bank of Wild Species in Southwest ChinaKunming Institute of BotanyThe Chinese Academy of SciencesKunming 650204China Yunnan Institute of Tropical Crops Xishuangbanna 666100China American Museum of Natural History New YorkNY 10024-5192USA Natural History Museum and Department of Ecology&Evolutionary BiologyUniversity of KansasLawrenceKS 66045USA

The aquatic plant Nymphaea,a model genus of the early flowering plant lineage Nymphaeales and family Nymphaeaceae,has been extensively ***,the availability of chloroplast genome data for this genus is incomplete,and phylogenetic relationships within the order Nymphaeales remain *** this study,12 chloroplast genomes of Nymphaea were assembled and analyzed for the first *** genomes were 158,290-160,042 bp in size and contained 113 non-repeat genes,including 79 protein-coding genes,30 tRNA genes,and four rRNA *** also report on codon usage,RNA editing sites,microsatellite structures,and new repetitive sequences in this *** genomics revealed that expansion and contraction of IR regions can lead to changes in the gene ***,it was observed that the highly variable regions of the chloroplast genome were mainly located in intergenic ***,the phylogenetic tree showed the order Nymphaeales was divided into three families,and the genus Nymphaea can be divided into five(or three)subgenera,with the subgenus Nymphaea being the *** divergence times of nymphaealean taxa were analyzed,with origins of the order Nymphaeales and family Nymphaeaceae being about 194 and 131 million years,*** results of the phylo-genetic analysis and estimated divergence times will be useful for future evolutionary studies of basal angiosperm lineages.

关键词： Aquatic plants Nymphaea Phylogenetic analysis Plastid genomics structural variation

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Mesozoic insect fossils reveal the early evolution of twig mimicry

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science Bulletin 2022年第16期67卷 1641-1643,M0003页

作者： Hongru Yang Michael s.engel Weiwei Zhang Dong Ren Taiping Gao College of Life sciences Capital Normal UniversityBeijing 100048China Division of Entomology Natural History MuseumDepartment of Ecology&Evolutionary BiologyUniversity of KansasLawrence KS 66045USA Division of Invertebrate Zoology American Museum of Natural HistoryNew York NY 10024USA Three Gorges Entomological Museum Chongqing 400015China

Twig mimicry among insects,whereby they imitate branches and twigs of plants to escape predation or enhance prey capture,is most common and diversified in Phasmatodea(stick and leaf insects),a group of iconic models for understanding the evolution of camouflage and *** stick and leaf insects exhibit a wide array of exaggerated morphologies mimicking twigs,bark,fresh or dried leaves,ferns,and even moss[1].However,the Mesozoic lineages susumaniidae and Pterophasmatidae,considered as stem groups to Phasmatodea ***.,lack obvious characters relating to the familiar twig mimicry of the latter clade.

关键词：拟态竹节虫早期演化昆虫化石缅甸北部化石标本枝状被子植物

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Cretaceous crown male ant reveals the rise of modern lineages

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Zoological Research 2024年第5期45卷 983-989页

作者： Qiong Wu Alexander G.Radchenko Michael s.engel Xiao-Qin Li Hong-Ru Yang Xing-Ru Li Chung-Kun shih Dong Ren Tai-Ping Gao College of Life sciences Capital Normal UniversityBeijing 100048China I.I.schmalhausen Institute of Zoology NAS of UkraineKiev 01054Ukraine Division of Invertebrate Zoology American Museum of Natural HistoryNew York 10024-5192USA Facultad de Ciencias Biológicas Universidad Nacional Mayor de San MarcosLima 11-0058Perú Departamento de Entomología Museo de Historia NaturalUniversidad Nacional Mayor de San MarcosLima 15072Perú Department of Chemistry Analytical and Testing CenterCapital Normal UniversityBeijing 100048China Department of Paleobiology National Museum of Natural HistorySmithsonian InstitutionWashington DC 20013-7012USA

Most described Mesozoic ants belong to stem groups that existed only during the Cretaceous ***,the earliest known crown ants were dated to the Turonian(Late Cretaceous,ca.94-90 million years ago(Ma))deposits found in the UsA,Kazakhstan,and ***,the recent discovery of an alate male ant in Kachin amber from the earliest Cenomanian(ca.99 Ma),representing a new genus and species,Antiquiformica alata,revises the narrative on ant *** can be distinctly differentiated from all known male stem ants by its geniculate antennae with elongated scape,extending far beyond the occipital margin of the head and half the length of the funiculus,as well as its partly reduced forewing ***,the combination of a one-segmented waist with a well-developed node,elongated scape extending beyond the occipital margin,and reduced forewing venation,particularly the completely reduced m-cu and rs-m crossveins and absence of rm and mcu closed cells,firmly places the fossil within the extant subfamily *** transform infrared spectroscopy(FTIR)confirmed that the amber containing Antiquiformica alata originated from the Kachin mines in *** discovery significantly revises our understanding of the early evolution of *** presence of Antiquiformica in Cenomanian amber indicates that the subfamily Formicinae emerged at least by the start of the Late Cretaceous,with crown ants likely originating earlier during the earliest Cretaceous or possibly the Late Jurassic,although paleontological evidence is lacking to support the latter hypothesis.

关键词： Formicidae Formicinae Morphology Taxonomy Antiquiformica alata Paleontology Kachin amber

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structure and ferroelectric properties of P(VDF-TrFE) films prepared under different conditions - Effect of filtration of the copolymer solution

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Journal of Advanced Dielectrics 2023年第4期13卷 48-51页

作者： B.Ploss D.smykalla s.engel Department of sciTec University for Applied Sciences Jena07745 JenaGermany Faculty of Chemistry and Earth sciences Friedrich-Schiller-University Jena07745 JenaGermany

Vinylidene fluoride-trifluoroethylene copolymer films of molar ratio 70/30 with thickness of about 1μm have been deposited from solution in ethyl methyl ketone to a glass substrate with an aluminum electrode by spin *** solution has been filtrated through a PTFE membrane filter with pore size 0.2μm directly before spin coating or it has been used as is(unfiltrated).After deposition of a top electrode,the samples have been polarized by hysteresis loops with an electric field amplitude of about 100 V/μ*** samples,annealed at temperature 145°C for 3 h,a high remanent polarization of about 7.5μC/cm2 has been achieved,without significant differences between samples fabricated of filtrated or unfiltrated *** lamella are growing in films fabricated of filtrated solution when they are heated above the melting temperature to 159°C for 3 min before the further annealing process at 145°*** films show substantially lower remanent polarization below 4μC/*** images recorded with a pyroelectric laser scanning microscope show that the spherulites have very small pyroelectric activity,i.e.,the spherulites consist of flat-on *** contrast,no spherulitic lamella are growing in films fabricated of unfiltrated solution heated above the melting temperature,melted and annealed under the same *** explanation for this observation is that filtrating changes the structure of the copolymer in solution from polymer coil to *** rods deposited on a substrate will crystallize in flat-on lamella when heated above the melting temperature,in contrast to copolymer coils which crystallize in edge-on lamella.

关键词： P(VDF-TrFE) ferroelectric polymer structure

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农业健康研究中阳光暴露、维生素D受体基因变异与乳腺癌风险

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环境与职业医学 2014年第5期31卷 341-341页

作者： Lawrence s.engel Jaya satagopan Camelia s.sima Irene Orlow Urvi Mujumdar Joseph Coble Pampa Roy sarah Yoo Dale P.sandler Michael C.Alavanja

[背景]流行病学证据表明,阳光暴露与乳腺癌风险之间存在负性相关。假设其机制是阳光诱导皮肤合成维生素D。[目的]探讨阳光暴露及其与维生素D受体(VDR)基因变异的交互作用对乳腺癌风险的影响。[方法]在前瞻性农业健康研究队列的入组人群... 详细信息

[背景]流行病学证据表明,阳光暴露与乳腺癌风险之间存在负性相关。假设其机制是阳光诱导皮肤合成维生素D。[目的]探讨阳光暴露及其与维生素D受体(VDR)基因变异的交互作用对乳腺癌风险的影响。[方法]在前瞻性农业健康研究队列的入组人群中,研究31 021位持有私人执照的杀虫剂从业人员的妻子受到的阳光暴露与乳腺癌发病率,其中包括578个病例,平均随访8.6年。在一项由293名病例和586名匹配对照组成的巢式病例-对照研究中,评估阳光暴露、VDR变异体与乳腺癌之间的交互作用。有关阳光暴露的信息来自于队列入组时的问卷调查。对队列数据采用Cox比例风险回归估计相对风险,对巢式病例-对照数据采用条件logistic回归估计相对风险。[结果]在所有参与者中,患乳腺癌风险的小幅度下降与随访前10年中平时阳光暴露≥1 h/d相关(与<1 h/d相比)[风险比(HR)=0.8;95%CI:0.6～1.0]。这一相关性在雌激素受体阳性肿瘤(HR=0.7;95%CI:0.5～0.9)中比雌激素受体阴性肿瘤(HR=1.1;95%CI:0.6～2.1)中稍强。阳光暴露≥1 h/d和一个VDR单倍型的联合HR低于预期,因为单一暴露的HR为负值(交互作用,P=0.07)。[结论]上述研究结果提示,阳光暴露可能与乳腺癌风险降低相关,但是研究中并没有发现通过VDR变异体修饰的明确证据。需要进行更大规模的研究,特别是平时阳光暴露水平低的人群中可能能够更精确描述。

关键词：相对风险回归估计激素受体阳性流行病学证据雌激素受体风险降低交互作用单倍型受体基因病例-对照研究

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白垩纪缅甸琥珀揭示最古老的甲虫社会性寄生现象

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科学新闻 2018年第4期 116-116页

作者：蔡晨阳 Diying Huang Alfred F.Newton K.Taro Eldredge Michael s.engel 中国科学院南京地质古生物研究所

文章简介白蚁是目前已知最为古老的社会性昆虫,其社会性起源于侏罗纪晚期,显著早于其他社会性昆虫。白蚁巢穴中也常寄居有种类多样、形态特化的小型动物,它们被称之为"螱客",这种现象可称为社会性寄生。通过长期而复杂的演化适应,螱客... 详细信息

文章简介白蚁是目前已知最为古老的社会性昆虫,其社会性起源于侏罗纪晚期,显著早于其他社会性昆虫。白蚁巢穴中也常寄居有种类多样、形态特化的小型动物,它们被称之为"螱客",这种现象可称为社会性寄生。通过长期而复杂的演化适应,螱客能够侵入隐蔽的白蚁巢穴,利用巢穴内适宜稳定的环境、丰富营养的食物,并能获

关键词：社会性社会性昆虫

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中生代脉翅目中与昆虫—蜘蛛专性关联的早期形态特化

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科学新闻 2017年第4期 118-118页

作者：刘星月 Weiwei Zhang shaun L.Winterton Laura C.V.Breitkreuz Michael s.engel 中国农业大学植物保护学院昆虫学系

文章简介昆虫在成虫和幼期均展现出与其生物学特性相关的高度多样的特化形态。脉翅目昆虫,特别是其幼虫,是一类捕食性昆虫。为适应其捕食习性,其幼虫具有特化的双刺吸式口器,有些物种还具有特殊的伪装行为。本研究通过对大量缅甸琥珀中... 详细信息

文章简介昆虫在成虫和幼期均展现出与其生物学特性相关的高度多样的特化形态。脉翅目昆虫,特别是其幼虫,是一类捕食性昆虫。为适应其捕食习性,其幼虫具有特化的双刺吸式口器,有些物种还具有特殊的伪装行为。本研究通过对大量缅甸琥珀中脉翅目昆虫的分类研究,发现了一个形态高度特化的物种。该物种成虫前胸细颈状,足显著延长,而后翅强烈退化,这一系列特化形态

关键词：脉翅目昆虫蜘蛛专性中生代中生界地质年代

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中生代苏铁植物的甲虫传粉模式

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科学新闻 2019年第2期 116-116页

作者：蔡晨阳 Hermes E.Escalona 李丽琴殷子为黄迪颖 Michael s.engel 中国科学院南京地质古生物研究所南京古生物所上海师范大学

文章简介与现生松柏类、银杏类等风媒裸子植物不同,自然条件下苏铁(俗称铁树)的传粉和繁殖需要昆虫协助完成,即苏铁是一类严格的虫媒裸子植物,传粉者主要包括多种甲虫和一些蓟马。苏铁目植物目前种类不多,但是它们起源很早,可以追溯到... 详细信息

文章简介与现生松柏类、银杏类等风媒裸子植物不同,自然条件下苏铁(俗称铁树)的传粉和繁殖需要昆虫协助完成,即苏铁是一类严格的虫媒裸子植物,传粉者主要包括多种甲虫和一些蓟马。苏铁目植物目前种类不多,但是它们起源很早,可以追溯到二叠纪。尽管中生代地层中苏铁类植物化石十分常见,

关键词：中生代

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人脂肪组织来源间充质干细胞移植在减少动静脉瘘相关性静脉内膜增生的示踪与疗效

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国际医学放射学杂志 2016年第4期 431-431页

作者： B.Yang A.Brahmbhatt E.N.Torres B.Thielen D.L.Mc Call s.engel 李畅 Vascular and Interventional Radiology Translational Laboratory Department of Radiology and Department of Biochemistry and Molecular Biology Mayo Clinic

摘要目的一是建立动静脉瘘（AVF）***-Foxn1nu/J小鼠模型,同时将人脂肪组织来源间充质干细胞（MsC）移植到流出静脉的血管外膜后,研究是否能降低单核细胞趋化蛋白-1（Mcp-1）的基因表达,减少静脉内膜增生。二是利用PET连续21 d示踪89Zr... 详细信息

摘要目的一是建立动静脉瘘（AVF）***-Foxn1nu/J小鼠模型,同时将人脂肪组织来源间充质干细胞（MsC）移植到流出静脉的血管外膜后,研究是否能降低单核细胞趋化蛋白-1（Mcp-1）的基因表达,减少静脉内膜增生。二是利用PET连续21 d示踪89Zr标记的MsC。材料与方法所有动物

关键词：静脉 MsC 血管外膜 Zr 内膜增生动静脉瘘示踪脂肪组织结缔组织

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