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Temporal and spatial comparisons of angiosperm diversity between eastern Asia and North America

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National science Review 2022年第6期9卷 38-42页

作者： Haihua Hu Jianfei Ye Bing Liu Lingfeng Mao stephen A.smith Russell L.Barrett pamela s.soltis Douglas E.soltis Zhiduan Chen Limin Lu state Key Laboratory of systematic and Evolutionary Botany Institute of Botany Chinese Academy of Sciences University of Chinese Academy of sciences sino-Africa Joint Research Center Chinese Academy of Sciences Beijing Botanical Garden Institute of BotanyChinese Academy of Sciences Co-Innovation Center for sustainable Forestry in southern China College of Biology and the Environment Nanjing Forestry University Department of Ecology and Evolutionary Biology University of Michigan National Herbarium of New south Wales Royal Botanic Gardens and Domain Trust Florida Museum of Natural History University of Florida Department of Biology University of Florida

Comparative approaches that examine floras with similar environments, but different diversity patterns, provide good opportunities to elucidate how uneven distributions of biodiversity were assembled. Eastern Asia(EA) and North America north of Mexico(NA; see definitions of EA and NA in Fig. s1 A) share similar geographical environments with comparable latitude, land area and climate,

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Phylogenetic diversity of eastern Asia-eastern North America disjunct plants is mainly associated with divergence time

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Plant Diversity 2023年第1期45卷 27-35页

作者： Han-Yang Lin Miao sun Ya-Jun Hao Daijiang Li Matthew A.Gitzendanner Cheng-Xin Fu Douglas E.soltis pamela s.soltis Yun-Peng Zhao Laboratory of systematic and Evolutionary Botany and Biodiversity College of Life SciencesZhejiang UniversityHangzhou 310058China Key Laboratory of Horticultural Plant Biology(Ministry of Education) Huazhong Agricultural UniversityWuhan 430070China Florida Museum of Natural History University of FloridaGainesvilleFL 32611USA Department of Biology University of FloridaGainesvilleFL 32611USA Biodiversity Institute University of FloridaGainesvilleFL 32611USA Genetics Institute University of FloridaGainesvilleFL 32608USA school of Advanced study Taizhou UniversityTaizhou 318000China

The underlying causes of biodiversity disparities among geographic regions have long been a fundamental theme in ecology and ***,the patterns of phylogenetic diversity(PD) and phylogenetic beta diversity(PBD) of congeners that are disjunctly distributed between eastern Asia-eastern North America(EA-ENA disjuncts) and their associated factors remain *** we investigated the standardized effect size of PD(sEs-PD),PBD,and potentially associated factors in 11natural mixed forest sites(five in EA and six in ENA) where abundant EA-ENA disjuncts *** found that the disjuncts in ENA possessed higher sEs-PD than those in EA at the continental scale(1.96vs-1.12),even though the number of disjunct species in ENA is much lower than in EA(128 vs 263).sEsPD of the EA-ENA disjuncts tended to decrease with increasing latitude in 11 *** latitudinal diversity gradient of sEs-PD was stronger in EA sites than in ENA *** on the unweighted unique fraction metric(UniFrac) distance and the phylogenetic community dissimilarity,PBD showed that the two northern sites in EA were more similar to the six-site ENA group than to the remaining southern EA *** on the standardized effect size of mean pairwise distances(sEs-MPD),nine of eleven studied sites showed a neutral community structure(-1.96 ≤sEs-MPD ≤1.96).Both Pearson’s r and structural equation modeling suggested that sEs-PD of the EA-ENA disjuncts was mostly associated with mean divergence ***,sEs-PD of the EA-ENA disjuncts was positively correlated with temperaturerelated climatic factors,although negatively correlated with mean diversification rate and community *** applying approaches from phylogenetics and community ecology,our work sheds light on historical patterns of the EA-ENA disjunction and paves the way for further research.

关键词： EA-ENA disjuncts Climatic factors Community assembly processes Diversification rate Divergence time Phylogenetic diversity

Potential distributional shifts in North America of allelopathic invasive plant species under climate change models

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Plant Diversity 2022年第1期44卷 11-19页

作者： Anson Wang Anthony E.Melton Douglas Esoltis pamela ssoltis Department of Biology University of FloridaGainesvilleFL32611USA Florida Museum of Natural History University of FloridaGainesvilleFL32611USA Genetics Institute University of FloridaGainesvilleFL32610USA Biodiversity Institute University of FloridaGainesvilleFL32611USA

Predictive studies play a crucial role in the study of biological invasions of terrestrial plants under possible climate change *** species are recognized for their ability to modify soil microbial communities and influence ecosystem ***,we focused on six species of allelopathic flowering plants-Ailanthus altissima,Casuarina equisetifolia,Centaurea stoebe ***,Dioscorea bulbifera,Lantana camara,and schinus terebinthifolia-Xhat are invasive in North America and examined their potential to spread further during projected climate *** used species Distribution Models(sDMs)to predict future suitable areas for these species in North America under several proposed future climate *** and Maxent were used to develop sDMs,estimate current distributions,and predict future areas of suitable climate for each *** with the greatest predicted suitable climate in the future include the northeastern and the coastal northwestern regions of North *** size estimations demonstrate the possibility of extreme range loss for these invasives in the southeastern United states,while new areas may become suitable in the northeastern United states and southeastern *** findings show an overall northward shift of suitable climate during the next few decades,given projected changes in temperature and *** results can be utilized to analyze potential shifts in the distribution of these invasive species and may aid in the development of conservation and management plans to target and control dissemination in areas at higher risk for potential future invasion by these allelopathic species.

关键词： Allelopathy Invasive species species distribution models Ecological niche models Invasion impacts Multi-species assessment

Plant and fungal species interactions differ between aboveground and belowground habitats in mountain forests of eastern China

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science China(Life sciences) 2023年第5期66卷 1134-1150页

作者： Teng Yang Leho Tedersoo pamela s.soltis Douglas E.soltis Miao sun Yuying Ma Yingying Ni Xu Liu Xiao Fu Yu shi Han-Yang Lin Yun-Peng Zhao Chengxin Fu Chuan-Chao Dai Jack A.Gilbert Haiyan Chu state Key Laboratory of soil and sustainable Agriculture Institute of Soil ScienceChinese Academy of SciencesNanjing 210008China University of Chinese Academy of sciences Beijing 100049China Mycology and Microbiology Center University of TartuTartu 50409Estonia College of science King Saud UniversityRiyadh 11451Saudi Arabia Florida Museum of Natural History University of FloridaGainesville 32611USA College of Horticulture and Forestry sciences Huazhong Agricultural UniversityWuhan 430070China state Key Laboratory of Crop stress Adaptation and Improvement School of Life SciencesHenan UniversityKaifeng 475004China systematic&Evolutionary Botany and Biodiversity Group MOE Key Laboratory of Biosystems Homeostasis&ProtectionCollege of Life SciencesZhejiang UniversityHangzhou 310058China Jiangsu Key Laboratory for Microbes and Functional Genomics College of Life SciencesNanjing Normal UniversityNanjing 210003China Department of Pediatrics School of MedicineUniversity of CaliforniaSan DiegoLa Jolla 92093USA

Plant and fungal species interactions drive many essential ecosystem properties and processes;however,how these interactions differ between aboveground and belowground habitats remains unclear at large spatial ***,we surveyed 494 pairwise fungal communities in leaves and soils by Illumina sequencing,which were associated with 55 woody plant species across more than 2,000-km span of mountain forests in eastern *** relative contributions of plant,climate,soil and space to the variation of fungal communities were assessed,and the plant-fungus network topologies were *** phylogeny was the strongest predictor for fungal community composition in leaves,accounting for 19.1%of the *** soils,plant phylogeny,climatic factors and soil properties explained 9.2%,9.0%and 8.7%of the variation in soil fungal community,*** plant-fungus networks in leaves exhibited significantly higher specialization,modularity and robustness(resistance to node loss),but less complicated topology(e.g.,significantly lower linkage density and mean number of links)than those in *** addition,host/fungus preference combinations and key species,such as hubs and connectors,in bipartite networks differed strikingly between aboveground and belowground *** findings provide novel insights into cross-kingdom(plant-fungus)species co-occurrence at large spatial *** data further suggest that community shifts of trees due to climate change or human activities will impair aboveground and belowground forest fungal diversity in different ways.

关键词： bipartite network analyses foliar endophytic fungi modularity mountain forests plant phylogeny effect soil fungi specialization stability

Phylogenetic Analyses of Fagales Based on Multiple DNA sequences from Three Genomes

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Phylogenetic Analyses of Fagales Based on Multiple DNA Seque...

Impacts of brood parasitism by shiny cowbird Molothrus bonariensis on the breeding success of a small host, the black-backed water tyrant Fluvicola albiventer

第七届全国系统与进化植物学青年学术研讨会

作者： Douglas E.soltis pamela s.soltis Paul s.MANOs Department of Botany University of FloridaGainesvilleFL 32611USA Florida museum of Natural History University of FloridaGainesvilleFL 32611USA Department of Biology Duck Universitybox 90338DurhamNC 27708USA

Nucleotide sequences of six regions representing the three plant genomes were used to analyze the inter- and infra-familial relationships of Fagales. All 31 extant genera (excluding Ceuthostoma)

关键词： : Fagales Myricaceae multiple DNA sequences three genomes phylogeny combined analysis

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Current Zoology 2024年第4期70卷 539-547页

作者： Lorena Vanesa sovrano Evelina Jesica Leon Rodrigo Ezequiel Lorenzón pamela Fernanda Olguin Adolfo Héctor Beltzer Alejandro Raúl Giraudo Laboratorio de Biodiversidad y Conservacion de Tetrapodos Instituto Nacional de Limnologia(INALICONICET-UNL)Paraje El Pozo s/nSanta Fe(3000)Argentina Departamento de Biologia Universidad Autonoma de Entre RiosKm 10.5 RP 11Oro Verde(3100)Entre RiosArgentina Departamento de Biologia Universidad Nacional del LitoralFacultad de Humanidades y CienciasParaje Ei Pozo s/nSanta Fe(3000)Argentina

The shiny cowbird Molothrus bonariensis parasitizes many species with different life-history traits and has a detrimental effect on the survival of the progeny of the *** response,hosts have developed numerous antiparasitic ***,we examined the effects of brood parasitism by shiny cowbird on the clutch and brood sizes(83 nests)in a small host,the black-backed water tyrant Fluvicola *** also studied whether the death of parasite nestlings was related to the care of the foster parents and whether the host had any antiparasitic defense against the shiny *** results indicate that brood parasitism significantly decreased the host hatching and fledging *** majority of nest failures(57%)were caused by brood *** cowbird parasitism occurred in 52%of nests and the intensity of parasitism was 1.23±0.53 eggs per parasitized *** the total host eggs,54%were *** the incubation stage,20 nests(47%)were abandoned because of egg punctures by shiny cowbirds *** two parasitic fledglings were recorded,while the remaining nestlings either died from starvation(n=12)or predation(n=3).Foster parents abandoned parasitic nestlings between 5 and 10 days *** findings demonstrate that the shiny cowbird has very low rates of fledging success when parasitizing black-backed water ***,parasitism had a high reproductive cost in the black-backed water tyrant because a very low proportion(7%)of the parasitized nests(n=43)were successful.

关键词： brood parasitism host defenses nest desertion shiny cowbird small host.

Optimization of stealthwatch Network security system for the Detection and Mitigation of Distributed Denial of service (DDos) Attack: Application to smart Grid system

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Communications and Network 2024年第3期16卷 108-134页

作者： Emmanuel s. Kolawole Penrose s. Cofie John H. Fuller Cajetan M. Akujuobi Emmanuel A. Dada Justin F. Foreman pamela H. Obiomon Electrical and Computer Engineering Department Prairie View A&M University Prairie View TX USA

The smart Grid is an enhancement of the traditional grid system and employs new technologies and sophisticated communication techniques for electrical power transmission and distribution. The smart Grid’s communication network shares information about status of its several integrated IEDs (Intelligent Electronic Devices). However, the IEDs connected throughout the smart Grid, open opportunities for attackers to interfere with the communications and utilities resources or take clients’ private data. This development has introduced new cyber-security challenges for the smart Grid and is a very concerning issue because of emerging cyber-threats and security incidents that have occurred recently all over the world. The purpose of this research is to detect and mitigate Distributed Denial of service [DDos] with application to the Electrical smart Grid system by deploying an optimized stealthwatch secure Network analytics tool. In this paper, the DDos attack in the smart Grid communication networks was modeled using stealthwatch tool. The simulated network consisted of secure Network Analytic tools virtual machines (VMs), electrical Grid network communication topology, attackers and Target VMs. Finally, the experiments and simulations were performed, and the research results showed that stealthwatch analytic tool is very effective in detecting and mitigating DDos attacks in the smart Grid system without causing any blackout or shutdown of any internal systems as compared to other tools such as GNs3, Nessi2, NIssT Framework, OMNeT++, INET Framework, ReasE, Ns2, Ns3, M5 simulator, OPNET, PLC & TIA Portal management software which do not have the capability to do so. Also, using stealthwatch tool to create a security baseline for smart Grid environment, contributes to risk mitigation and sound security hygiene.

关键词： smart Grid system Distributed Denial of service (DDos) Attack Intrusion Detection and Prevention systems Detection Mitigation and stealthwatch

Expression of genes that control core fucosylation in hepatocellular carcinoma: systematic review

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World Journal of Gastroenterology 2019年第23期25卷 2947-2960页

作者： pamela A Norton Anand s Mehta Department of Microbiology and Immunology Drexel University College of MedicinePhiladelphiaPA 19102United States Department of Cell and Molecular Pharmacology Medical University of South CarolinaCharlestonSC 29425United States

BACKGROUND Changes in N-linked glycosylation have been observed in the circulation of individuals with hepatocellular carcinoma. In particular, an elevation in the level of core fucosylation has been observed. However, the mechanisms through which core fucose is increased are not well understood. We hypothesized that a review of the literature and related bioinformatic review regarding six genes known to be involved in the attachment of core fucosylation, the synthesis of the fucosylation substrate guanosine diphosphate(GDP)-fucose, or the transport of the substrate into the Golgi might offer mechanistic insight into the regulation of core fucose *** To survey the literature to capture the involvement of genes regulating core Nlinked fucosylation in hepatocellular carcinoma METHODs The PubMed biomedical literature database was searched for the association of hepatocellular carcinoma and each of the core fucose-related genes and their protein products. We also queried The Cancer Genome Atlas Liver hepatocellular carcinoma(LIHC) dataset for genetic, epigenetic and gene expression changes for the set of six genes using the tools at *** A total of 27 citations involving one or more of the core fucosylation-related genes(FPGT, FUK, FUT8, GMDs, sLC35 C1, TsTA3) and hepatocellular carcinoma were identified. The same set of gene symbols was used to query the371 patients with liver cancer in the LIHC dataset to identify the frequency of m RNA over or under expression, as well as non-synonymous mutations, copy number variation and methylation level. Although all six genes trended to moresamples displaying over expression relative to under-expression, it was noted that a number of tumor samples had undergone amplification of the genes of the de novo synthesis pathway, GMDs(27 samples) and TsTA3(78 samples). In contrast, the other four genes had undergone amplification in 2 or fewer *** Amplification of genes involved in the de novo pathway

关键词： Liver cancer N-linked glycosylation Fucose Guanosine diphosphate fucose Hepatocellular carcinoma

Prognostic role of selection criteria for liver transplantation in patients with hepatocellular carcinoma:Review and bibliometric

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iLIVER 2024年第1期3卷 52-61页

作者： pamela scarlett Espinoza Loyola Diana Laura Muratalla Bautista Karen Adela Hernández Bautista Elizabeth Gil White JoséAntonio González Moreno Daniel Angel Torres del Real Víctor Manuel Páez Zayas Carla Escorza-Molina Fernando Mondragón Rodríguez Omar Vásquez Gómez Luis Jorge Fernández López Paul santiago Mogrovejo Vázquez Isidoro Aczel sánchez-Cedillo Víctor Jose Visag Castillo social service Internship Universidad Nacional Autónoma de MéxicoMexico City 04510Mexico social service Internship Universidad AnahuacMexico City 04510Mexico Department of surgery Division of Transplantation surgery Hospital General de MéxicoMexico City 06720Mexico Departament of Gastroenterology Division of HepatologyHospital General de MéxicoMexico City 06720Mexico Departmanet of Anesthesiology Hospital General de MéxicoMexico City 06720Mexico

Hepatocellular carcinoma(HCC)is one of the most common cancers in the world and is one of the leading indications for liver transplantation,liver transplantation is the gold standard treatment for end stage liver *** is based up on radiological characteristics and rarely biopsy *** treatment must be individualized to each patient to improve recurrences and *** this article,we focus on the different selection criteria for liver *** study aimed to investigate the distribution laws and research frontiers of international literature,so as to present holistic bibliometric evaluation of the studies on 5-year survival and disease-free recurrence in 5 years,according to hepatocarcinoma criteria for liver *** paper aims to review and analyze 5-year survival and disease-free recurrence based on hepatocarcinoma criteria for liver *** systematically examines and summarizes distribution characteristics and research frontiers through bibliometric analysis.A bibliographic search was implemented in PubMed/Medline,Clinical Key,science Direct and Index Medicus with MEsH terms,from the year 1996–*** selected for transplantation using the Metroticket 2.0(MT2)criteria had the highest overall survival along with patients selected for transplantation using the Milan Criteria had the best 5-year disease-free *** Metroticket 2.0 criteria(MT2)and Milan Criteria(MC)have shown the most favorable post-transplant outcomes for patients with hepatocellular carcinoma(HCC).However,MC demonstrated the best 5-year disease-free recurrence rate,underscoring the significance of taking into account tumor morphology and biology when determining the eligibility of HCC patients for liver *** distribution characteristics and research frontiers by bibliometrics concerning prognostic role of selection criteria for liver transplantation in patients with hepatocellular carcinoma the collaboration

关键词： Hepatocellular carcinoma Liver transplantation survival Criteria Recurrence Bibliometrics