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Phylogenomics and integrative taxonomy reveal two new species of Amana(Liliaceae)

Plant Diversity 2023年第1期45卷 54-68页

作者： mei-Zhen Wang Xiao-Kai Fan Yong-Hua Zhang Jing Wu Li-mi mao Sheng-Lu Zhang min-Qi Cai ming-Hong Li Zhang-Shi-Chang Zhu ming-Shui Zhao Lu-Xian Liu kenneth m.cameron Pan Li Laboratory of Systematic&Evolutionary Botany and Biodiversity College of Life SciencesZhejiang UniversityHangzhou 310058ZhejiangChina College of Life and Environmental Sciences Wenzhou UniversityWenzhou325035China Nanjing Institute of Geology and Palaeontology Chinese Academy of SciencesNanjing 210008JiangsuChina Shanghai Science and Technology museum Shanghai200127China Nanyue Hengshan National Nature Reserve Administration Hengyang 421900HunanChina Zhejiang Tianmushan National Nature Reserve management Bureau Hangzhou311311China Key Laboratory of Plant Stress Biology School of Life SciencesHenan UniversityKaifeng 475001HenanChina Department of Botany University of WisconsinMadisonWI53706USA

Until now the genus Amana(Liliaceae),known as ’East Asian tulips’,has contained just seven *** this study,a phylogenomic and integrative taxonomic approach was used to reveal two new species,Amana nanyueensis from Central China and *** from East *** resembles Amana edulis in possessing a densely villous-woolly bulb tunic and two opposite bracts,but differs in its leaves and *** tianmuensis resembles Amana erythronioides in possessing three verticillate bracts and yellow anthers,but differs in aspects of its leaves and *** four species are clearly separated from each other in principal components analysis based on *** analyses based on plastid CDS further support the species delimitation of *** and *** and suggests they are closely related to *** analysis shows that *** and A tianmuensis are both diploid(2n=2x=24),different from A edulis,which is either diploid(northern populations) or tetraploid(southern populations,2n=4x=48).The pollen morphology of *** is similar to other Amana species(single-groove germination aperture),but *** is quite different because of the presence of a sulcus membrane,which creates the illusion of double *** niche modelling also revealed a niche differentiation between ***,*** and ***.

关键词： Amana edulis Parallel evolution Phylogeny Species concept Taxonomy Tulip

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Levels and Patterns of Genetic Variation in the Endangered Species Changium smyrnioides (Umbelliferae) Using Inter-simple Sequence Repeats(ISSR) and Allozyme markers

Levels and Patterns of Genetic Variation in the Endangered S...

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第七届全国系统与进化植物学青年学术研讨会

作者： kenneth m.cameron The Lewis B.and Dorothy Cullman Program for molecular Systematics Studies TheNew York Botanical GardenBronxNew York 10458-5126 USA

Changium smyrnioids(Umbelliferae)is an endangered plant endemic to Eastern China. This study investigates the levels of genetic variation and patterns of population structure to provide genetic information for the development of suitable conservation strategies. Four of the seven known populations were sampled and analyzed using starch gel electrophoresis of ten enzymes coded by 19 interpretable loci. Population-level values for *** (means: P =33.0%, I=0.13, He = 0.07) are slightly exceeded mean values for endemic species. Values of GST tended to be high (mean GST= 0.578), indicating substantial divergence and limited gene flow among populations. We further investigated genetic variation among and within 7 populations with ISSRs profiles. Of the 196ISSR loci scored,

关键词： Changium smyrnioides. Conservation genetics Allozymes ISSRs

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Phylogeny and Biogeography of Smilacaceae based on nuclear and chloroplast DNA sequences

Phylogeny and Biogeography of Smilacaceae based on nuclear a...

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中国植物学会七十五周年年会

作者： kenneth m.cameron Department of Botany University of WisconsinMadison MadisonWI 53706-1381U.S.A.

Smilacaceae are a cosmopolitan family of liliales characterized by climbing habit,reticulate leaf venation,paired petiolar tendrils,and unisexual *** from this generalized morphology have lead to the division of Smilacaceae into at least seven different genera and five sections within the large genus *** particular,taxa with connate tepals (Heterosmilax),

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菝葜科东亚北美间断分布的Smilax hispida复合类群的进化历史(英文)

菝葜科东亚北美间断分布的Smilax hispida复合类群的进化历史(英...

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后植物志时代的系统与进化植物学——2011年全国系统与进化植物学暨第十届青年学术研讨会

作者： kenneth m.cameron Jenny Department of Plant Biology North Carolina State UniversityRaleighNC 27695U.S.A Department of Botany University of WisconsinMadisonWI 53706U.S.A

Disjunction is an important biogeographic pattern which used to be addressed using phylogenetic and historical biogeographic ***,there are extremely rare larger-scale, particularly inter-continental,phylogeographic investigations on closely related *** diversification and evolution of the disjunct taxa after divergence have also scarcely been ***, we applied phylogenetic and phylogeographic analyses to understand the evolutionary history of a morphologically static group,Smilax hispida complex(including ***(华东菝葜) and S. scobinicaulis(短梗菝葜) in east Asia;*** in northwest America;*** in northeast America;*** and *** in central America),with a broad eastern Asian and North-Central American *** phylogeographic analyses,we sequenced two cpDNA fragments(trnL-trnF and ycf6-trnC spacers) and also nuclear(ITS) region in 539 individuals from 64 populations of sampled throughout the six species’ *** present suite of molecular data strongly supports the monophyly of S. hispida complex and the first divergence between the intercontinental lineages as well as delineation of each of the six *** species complex most possibly originated in western North America and then dispersed into eastern Asia via the Bering land *** intracontinental divergence closely followed the intercontinental disjunction at 8 *** in Central America is the first diverged species in the American clade prior to *** in western North America at 5.1 *** divergence between S. hispida in eastern North America and *** in northern mexico was estimated at 2.8 *** origin of temperate plants in Central America is more complex than what we have known *** earliest and latest diverged species in American clade,*** and ***,independently migrated into Central America in different times even up to 8.2 *** did occur between them during t

关键词： Northern Hemisphere disjunction intercontinental phylogeography eastern Asia North America Latin America Smilax hispida complex

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世界菝葜科(百合目)的分子系统发育及其生物地理学研究

世界菝葜科(百合目)的分子系统发育及其生物地理学研究

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生态文明建设中的植物学：现在与未来——中国植物学会第十五届会员代表大会暨八十周年学术年会

作者：祁哲晨李攀赵云鹏 kenneth m.cameron 傅承新浙江大学生命科学学院植物系统进化和生物多样性研究室芬美意香料(中国)研发部 Department of Botany Wisconsin State HerbariumThe University of WisconsinMadisonWI53706USA

菝葜科(Smilacaceae)植物是一类世界性广布的单子叶植物,其科内种间的系统发育一直是百合目内遗留的一个问题。由于菝葜科分布的广域性,尚无人能够对全世界菝葜科的进化历史和生物地理历史进行全面深入的研究和阐述。本研究对菝葜科物... 详细信息

菝葜科(Smilacaceae)植物是一类世界性广布的单子叶植物,其科内种间的系统发育一直是百合目内遗留的一个问题。由于菝葜科分布的广域性,尚无人能够对全世界菝葜科的进化历史和生物地理历史进行全面深入的研究和阐述。本研究对菝葜科物种进行的世界范围取样,对其分子系统学和生物地理学进行了研究。通过扩增核糖体DNA ITS,叶绿体matK、rbcL、ndhA、ndhF基因和rpl16内含子区域,以及单拷贝核基因At103和agt1区域,共8个分子片段,对菝葜科进行了系统发育分析,获得以下主要结果:1)分子系统发育分析首次构建了一棵分辨率非常高的菝葜科系统树,揭示出菝葜科明显的旧大陆-新大陆2大谱系,谱系之间存在较强的地理分布模式;2)确立世界菝葜科可划分为5个主要分支:新大陆分支、穗菝葜分支、中国西南喜马拉雅分支、旧大陆草本及无刺分支、旧大陆木本分支;3)提出经典分类划分的菝葜属下八个组,除草本组(Sect. Nemexia)外均不成立;4)确立了肖菝葜属是镶嵌在菝葜属内的,其属的地位不成立,提出降为菝葜属下的一个组:肖菝葜组(Sect. Heterosmilax),即菝葜科只包括约含210个物种的菝葜属(Smilax)。基于菝葜科的系统发育框架,以及全面的化石记录,对菝葜科的分歧时间、祖先分布重建、多样性分化速率进行了深入的分析。揭示菝葜科约在(ca97ma)晚白垩纪起源于北美洲;认为由于气候剧烈变化,导致了菝葜科物种在始新世与渐新世交替期经历了一次灭绝事件,并形成了新大陆和旧大陆两个独立的分支;提出旧大陆分支在渐新世(38ma-26.7ma)的多样性分化和快速辐射与印度板块冲击欧亚大陆而形成的造山运动有非常大的关系;通过模拟完全取样的分化速率研究,发现菝葜科经历了两次快速分化时期,分别发生在下中新世(20ma-13ma)和上新世(5ma-2ma);研究揭示菝葜科的两个谱系(新大陆和旧大陆)在进化过程中表现出分化速率的异质性,旧大陆分支显著快于新大陆分支。其形成的原因与印度板块与欧亚大陆撞击后,西马拉雅-横断山系形成和隆升导致东亚较北美更加复杂的地质结构和更为丰富的区域性气候有密切的关系。本研究结合分子树、形态和地理分布模式提出了世界菝葜科分类修订:菝葜科(Smilacaceae)仅菝葜属,含5个亚属和21个组,共210种。

关键词：祖先分布重建生物地理学间断分布分歧时间分化速率肖菝葜系统发育菝葜科菝葜属

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世界菝葜科的分子系统学和生物地理分布格局研究(英文)

世界菝葜科的分子系统学和生物地理分布格局研究(英文)

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后植物志时代的系统与进化植物学——2011年全国系统与进化植物学暨第十届青年学术研讨会

作者：祁哲晨李攀赵云鹏陈士超陈光村 kenneth m.cameron 浙江大学植物系统进化与生物多样性研究室教育部濒危动植物保护生物学重点实验室

Greenbrier(Smilacaceae) currently belonging to the order Liliales,ordinarily including genus Smilax and Heterosmilax,is a group of worldwide distributed climbing monocot,about 200 species,with alternate leaves characterized by reticulate venation,a pair of petiolar tendrils and usually prickly *** a long study history since Linnaeus named it in 1753,the phylogeny of this dioecious family has never been well ***,we collected molecular evidence from nDNA(At103),rDNA (ITS) and chloroplast loci(matK,ndhA,ndhF,rpl16 intron)of 135 taxa,total alignment length about 8000 bp,covered all sections and major distribution zone of the family,Ripogonaceae,Philesiaceaewere chosen as outgroups,and reconstructed a sound phylogenetic tree,provided the possible evolutionary history of this *** molecular analysis indicates the phylogenetic relationshipsshowed conspicuous geographical pattern within the family-Smilax aspera with Paleotropical distribution(macaronesia, mediterranean,East tropica]Africa,Asia minor,and India-Himalaya) is sister to all other taxa of the family. The rest of the family largely divided into two major clades:Old World and New *** these two clades,continental migration and long distance dispersal events were *** traits according to the phylogeny and more detailed geographical patterns within the clades were *** mCmC DIVA analysis was conducted to reconstruct the ancestral distribution of *** of distribution was according the terrestrial ecoregions of the world(Olson et al,2001).The result showed a clear western Gondwana origin of the upper Liliales clade(Liliaceae,Rhipogonaceae,Philesiaceae,Smilacaceae), Smilacaceae was originated in South *** New World Smilax ancestors migrated to Old World probably in Late Eocene,which is supported by divergence time *** applied a relaxed molecular clock method to infer the divergence times of all extant lineages ofSmilacaceae,calibra

关键词： biogeography molecular dating phylogeny Smilcacaceae

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东亚-北美间断分布的针刺类菝葜(Smilax hispida group)的比较亲缘地理学研究

东亚-北美间断分布的针刺类菝葜(Smilax hispida group)的比较亲...

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生态文明建设中的植物学：现在与未来——中国植物学会第十五届会员代表大会暨八十周年学术年会

作者：赵云鹏祁哲晨马炜炜戴琼妍李攀 kenneth m.cameron Joongku Lee Qiu-Yun(Jenny)Xiang 傅承新浙江大学生命科学学院濒危野生动植物保护生物学教育部重点实验室 Department of Botany University of WisconsinMadisonWI53706U.S.A. Korea Research Institute of Bioscience&Biotechnology Department of Plant Biology North Carolina State University

针刺类菝葜包括东亚分布的短梗菝葜(***)、华东菝葜(***),北美西部分布的加州菝葜(***),北美东部分布的针刺菝葜(***),墨西哥及中美洲分布的***、***,是一个形态显著、呈间断地理分布的单系类群。本文通过对该类群的大尺度亲缘地理学分... 详细信息

针刺类菝葜包括东亚分布的短梗菝葜(***)、华东菝葜(***),北美西部分布的加州菝葜(***),北美东部分布的针刺菝葜(***),墨西哥及中美洲分布的***、***,是一个形态显著、呈间断地理分布的单系类群。本文通过对该类群的大尺度亲缘地理学分析,旨在检验东亚植物类群具有更高的异域分化速率的假说,以及墨西哥温带区系成分起源于北美东南部的假说。我们采用7个叶绿体和核DNA序列构建该类群的系统发育树,利用系谱分选指数(GSI)来评价物种界定,利用贝叶斯法估算谱系分化时间、单倍型分化速率、历史分布区重建;采用trnL-trnF、trnC-ycf6转录间隔区序列,通过对64个群体共539个体的分析,比较了东亚类群和北美东部类群的谱系地理特征和异域分化。研究结果强烈支持6个种的界定,该类群大约于11.42mya起源于墨西哥,两个墨西哥种独立起源于墨西哥,东亚类群存在显著的cpDNA地理结构,但是北美东部类群具有更高的单倍型分化速率。本文结果支持东亚类群的异域物种形成假说,但并不支持其具有更高的分化速率,东亚类群具有更高多样性可能与其进化历史更长有关;同时,我们的结果并不支持墨西哥温带成分的北美东部起源假说。

关键词：比较亲缘地理学针刺菝葜类东亚-北美间断分布分化速率生物地理起源

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Well-Posedness of Stochastic Continuity Equations on Riemannian manifolds

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Chinese Annals of mathematics,Series B 2024年第1期45卷 81-122页

作者： Luca GALImBERTI kenneth H.KARLSEN Department of mathematical Sciences NTNU Norwegian University of Science and TechnologyN-7491 TrondheimNorway Department of mathematics University of OsloP.O.Box 1053BlindernN-0316 OsloNorway

The authors analyze continuity equations with Stratonovich stochasticity,■ρ+divh[ρo(u(t,x)+∑_(i=1)^(N)a_(i)(x)w_(i)(t))]=0defined on a smooth closed Riemannian manifold m with metric *** velocity field u is perturbed by Gaussian noise terms Wi(t),:WN(t)driven by smooth spatially dependent vector fields a1(x),...,aN(x)on *** velocity u belongs to L_(t)^(1)W_(x)^(1,2)with divh u bounded in Lf,for p>d+2,where d is the dimension of m(they do not assume div_(h) u∈L_(t,x)^(∞)).For carefully chosen noise vector fields ai(and the number N of them),they show that the initial-value problem is well-posed in the class of weak L^(2) solutions,although the problem can be ill-posed in the deterministic case because of concentration *** proof of this“regularization by noise”result is based on a L^(2) estimate,which is obtained by a duality method,and a weak compactness argument.

关键词： Stochastic continuity equation Riemannian manifold Hyperbolic equa-tion Non-smooth velocity field Weak solution Existence Uniqueness

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An electropenetrography waveform library for the probing and ingestion behaviors of Culex tarsalis on human hands

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Insect Science 2024年第4期31卷 1165-1186页

作者： Anastasia m.W.Cooper Samuel B.Jameson Victoria Pickens cameron Osborne Elaine A.Backus Kristopher Silver Dana N.mitzel Department of Entomology Kansas State UniversityManhattanKansasUSA Department of Tropical medicine Tulane University School of Public Health and Tropical MedicineNew OrleansLos AngelesUSA USDA Agricultural Research Service San Joaquin Valley Agricultural Sciences CenterParlierCaliforniaUSA National Bio and Agro-Defense Facility USDA Agricultural Research ServiceManhattanKansasUSA

Culex tarsalis Coquillett(Diptera:Culicidae)mosquitoes are capable of vectoring numerous pathogens affecting public and animal ***,the probing behaviors of mosquitoes are poorly understood because they occur in opaque ***(EPG)has the potential to elucidate these behaviors by recording the electrical signals generated during *** used an AC–DC EPG with variable input resistors(Ri levels)to construct a waveform library for *** feeding on human *** events associated with mosquito probing were used to characterize waveforms at four Ri levels and with two electrical current *** optimal settings for EPG recordings of *** probing on human hands was an Ri level of 10^(7)Ohms using an applied signal of 150 millivolts alternating *** for *** included those previously observed and associated with probing behaviors in Aedes aegypti L.(Diptera:Culicidae):waveform families J(surface salivation),K(stylet penetration through the skin),L(types 1 and 2,search for a blood vessel/ingestion site),m(types 1 and 2,ingestion),N(type 1,an unknown behavior which may be a resting and digestion phase),and W(withdrawal).However,we also observed variations in the waveforms not described in ***,which we named types L3,m3,m4,and *** investigation enhances our understanding of mosquito probing *** also provides a new tool for the automated calculation of peak *** work will facilitate future pathogen acquisition and transmission studies and help identify new pest and disease management targets.

关键词： AC-DC blood feeders electrical penetration graph EPG human hands mosquitoes waveform library

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Planetary Homeostasis of Reactive Nitrogen Through Anaerobic Ammonium Oxidation

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Engineering 2024年第7期38卷 175-183页

作者： Guibing Zhu Bangrui Lan Shuci Liu cameron m.Callbeck Shanyun Wang Liping Jiang Asheesh Kumar Yadav Jan Vymazal mike S.m.Jetten Ganlin Zhang Yongguan Zhu Research Center for Eco-Environmental Sciences Chinese Academy of SciencesBeijing 100085China Department of Environment and Science Queensland GovernmentBrisbaneQLD 4102Australia Department of Environmental Sciences University of BaselBasel 4056Switzerland CSIR-Institute of minerals and materials Technology Bhubaneswar 751013India Faculty of Environmental Sciences Czech University of Life Sciences PraguePraha 16521Czech Republic Department of microbiology Radboud UniversityNijmegen 6525 XZThe Netherlands Key Laboratory of Watershed Geographic Sciences Nanjing Institute of Geography and LimnologyChinese Academy of SciencesNanjing 210008China State Key Laboratory of Soil and Sustainable Agriculture Institute of Soil ScienceChinese Academy of SciencesNanjing 210008China University of Chinese Academy of Sciences Beijing 100049China

The availability of nitrogen(N)is crucial for both the productivity of terrestrial and aquatic ecosystems ***,the overuse of artificial fertilizers and the energy required to fix nitrogen have pushed the global nitrogen cycle(N-cycle)past its safe operating limits,leading to severe nitrogen pollution and the production of significant amounts of greenhouse gas nitrous oxide(N2O).The anaerobic ammonium oxidation(anammox)mechanism can counteract the release of ammonium and N2O in many oxygenlimited situations,assisting in the restoration of the homeostasis of the Earth’s N *** this work,we looked into the characteristics of the anammox hotspots’distribution across various types of ecosystems *** hotspots are present at diverse oxic-anoxic interfaces in terrestrial systems,and they are most prevalent at the oxic-anoxic transition zone in aquatic *** on the discovery of an anammox hotspot capable of oxidizing ammonium anoxically into N2 without N2O by-product,we then designed an innovative concept and technical routes of nature-based anammox hotspot geoengineering for climate change,biodiversity loss,and efficient utilization of water *** 15 years of actual use,anammox hotspot geoengineering has proven to be effective in ensuring clean drinking water,regulating the climate,fostering plant and animal diversity,and enhancing longterm environmental *** sustainable biogeoengineering of anammox could be a workable natural remedy to resolve the conflicts between environmental pollution and food security connected to N management.

关键词： Biogeochemical N-cycle Oxic-anoxic interface Nature-based solution Biogeoengineering Nitrogen sustainable development

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