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Detection of Adaptive Genetic Diversity in Wild Potato Populations and Its Implications in Conservation of Potato Germplasm

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American Journal of Plant Sciences 2020年第10期11卷 1562-1578页

作者： alfonso H. del rio John B. Bamberg USDA/Agricultural Research Service US Potato Genebank Sturgeon Bay WI USA

A better understanding on how genetic diversity is structured at natural habitats can be helpful for exploration and acquisition of plant germplasm. Historically, studies have relied on DNA markers to elucidate potato genetic diversity. Current advances in genomics are broadening applications allowing the identification of markers linked to genomic regions under selection. Those markers, known as adaptive markers, unlock additional ways to value and organize germplasm diversity. For example, conservation priorities could be given to germplasm units containing markers associated to unique geographic identity, and/or linked to traits of tolerance to abiotic stresses. This study investigated if adaptive marker loci were possible to be identified in a large AFLP marker dataset of ninety-four populations of the wild potato species S. fendleri. These populations originated from six different mountain ranges in southern Arizona, USA. A total of 2094 polymorphic AFLP markers were used to conduct genetic diversity analyses of populations and mountain ranges. Adaptive markers were detected using Bayesian methods which distinguished marker loci departing significantly from frequencies expected under neutral models of genetic differentiation. This identified 16 AFLP loci that were considered to be adaptive. To contrast diversity parameters generated with each set of markers, analyses that included all the 2094 AFLP markers, and only the 16 adaptive markers were conducted. The results showed that both were efficient for establishing genetic associations among populations and mountain ranges. However, adaptive markers were better on revealing geographic patterns and identity which would suggest these markers were linked to selection at the natural sites. An additiona

关键词： Adaptive Genetic Diversity AFLP Markers Plant Population Structure Potato Germplasm Solanum fendleri

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Effects of the Pesticide <i>Furadan</i>on Traits Associated with Reproduction in Wild Potato Species

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American Journal of Plant Sciences 2012年第11期3卷 1608-1612页

作者： alfonso del rio John Bamberg Ruth Centeno-Diaz Alberto Salas William Roca David Tay International Potato Center (CIP) Lima Peru International Potato Center (CIP) Lima Peru. USDA/Agriculture Research Service US Potato Genebank Wisconsin USA

Natural populations of wild potato species are the backups for the diversity held in genebanks for research and breeding. Some potato species are known to grow in close proximity to cultivated fields, thus are potentially impacted by human activity, including exposure to pesticides. The present study tested the effects of a common pesticide on reproductive traits of potatoes known to grow in or near pesticide-treated fields in central Peru. Furadan? 4F, an insecticide— nematicide (common name = carbofuran) was applied at two different rates to populations representing 15 wild potato species in a greenhouse environment in Peru. Flowering duration of these populations was usually significantly reduced in comparison to a water control, and in a few cases, percent viable pollen also was. These findings suggest that agrichemicals may be having unintentional effects on wild potato populations in ways that could compromise their genetic diversity.

关键词： Potato Species Pesticide Contamination Genetic Drift Reproductive Capacity

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Long-term trends in the abundance and breeding performance in Adélie penguins:the Argentine Ecosystem Monitoring Program

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Advances in Polar Science 2024年第1期35卷 132-140页

作者： Mariana A.JUÁRES AnahíM.SILVESTRO Brenda C.alfonso M.Mercedes SANTOS Departamento Biología de Predadores Tope Instituto Antártico Argentino(IAA)Buenos Aires B1650CSPArgentina Consejo Nacional de Investigaciones Científicas y Técnicas(CONICET) Buenos Aires C1425FQBArgentina Laboratorios Anexos Facultad de Ciencias Naturales y MuseoUniversidad Nacional de La PlataLa Plata B1904AMAArgentina INEDES(CONICET-UNLu) Buenos Aires C1425FQBArgentina Facultad de Ciencias Naturales y Museo Universidad Nacional de La PlataLa Plata B1900FWAArgentina Instituto Antártico Argentino(IAA) Buenos Aires B1650CSPArgentina

In this work,we report long-term trends in the abundance and breeding performance of Adélie penguins(Pygoscelis adeliae)nesting in three Antarctic colonies(i.e.,at Martin Point,South Orkneys Islands;Stranger Point/Cabo Funes,South Shetland Islands;and Esperanza/Hope Bay in the Antarctic Peninsula)from 1995/96 to 2022/*** yearly count data of breeding groups selected,we observed a decline in the number of breeding pairs and chicks in crèche at all colonies ***,the magnitude of change was higher at Stranger Point than that in the remaining ***,the index of breeding success,which was calculated as the ratio of chicks in crèche to breeding pairs,exhibited no apparent trend throughout the study ***,it displayed greater variability at Martin Point compared to the other two colonies under *** the number of chicks in crèche of Adélie penguins showed a declining pattern,the average breeding performance was similar to that reported in gentoo penguin colonies,specifically,those undergoing a population increase(even in sympatric colonies facing similar local conditions).Consequently,it is plausible to assume a reduction of the over-winter survival as a likely cause of the declining trend observed,at least in the Stranger Point and Esperanza ***,we cannot rule out local effects during the breeding season affecting the Adélie population of Martin Point.

关键词： long-term monitoring Adélie penguin breeding pairs chicks crèched breeding success population trends

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深海环境海洋生态系统监测与修复新技术

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Engineering 2024年第3期34卷 195-211页

作者： Jacopo Aguzzi Laurenz Thomsen Sascha Flögel Nathan J.Robinson Giacomo Picardi Damianos Chatzievangelou Nixon Bahamon Sergio Stefanni Jordi Grinyó Emanuela Fanelli Cinzia Corinaldesi Joaquin del rio Fernandez Marcello Calisti Furu Mienis Elias Chatzidouros Corrado Costa Simona Violino Michael Tangherlini Roberto Danovaro Instituto de Ciencias del Mar(ICM-CSIC) Barcelona 08003Spain Stazione Zoologica Anton Dohrn Naples 80121Italy University of Gothenburg Göteborg 40530Sweden GEOMAR Helmholtz Centre for Ocean Research Kiel 24148Germany Fundación Oceanogràfic de la Comunitat Valenciana Valencia 46013Spain Royal Netherlands Institute for Sea Research(NIOZ) Den Burg Texel 1790 ABNetherlands Polytechnic University of Marche(UNIVPM) Ancona 60131Italy SARTI-MAR of the Universitat Politecnica de Catalunya(UPC) Vilanova i la Geltrú08800Spain Lincoln Institute for Agri-food Technology University of LincolnLincoln LN22LGUK Engitec Systems International Limited Limassol 3083Cyprus Consiglio per la Ricerca in Agricoltura e L’analisi dell’economia Agraria(CREA) Centro di Ricerca Ingegneria e Trasformazioni AgroalimentariMonterotondo 00015Italy

The United Nations(UN)’s call for a decade of“ecosystem restoration”was prompted by the need to address the extensive impact of anthropogenic activities on natural *** ecosystem restoration is increasingly necessary due to increasing habitat degredation in deep waters(>200 m depth).At these depths,which are far beyond those accessible by divers,only established and emerging robotic platforms such as remotely operated vehicles(ROVs),autonomous underwater vehicles(AUVs),landers,and crawlers can operate through manipulators and multiparametric sensor arrays(e.g.,optoacoustic imaging,omics,and environmental probes).The use of advanced technologies for deep-sea ecosystem restoration can provide:①high-resolution three-dimensional(3D)imaging and acoustic mapping of substrates and key taxa,②physical manipulation of substrates and key taxa,③real-time supervision of remote operations and long-term ecological monitoring,and④the potential to work ***,we describe how robotic platforms with in situ manipulation capabilities and payloads of innovative sensors could autonomously conduct active restoration and monitoring across large spatial *** expect that these devices will be particularly useful in deep-sea habitats,such as①reef-building cold-water corals,②soft-bottom bamboo corals,and③soft-bottom fishery resources that have already been damaged by offshore industries(i.e.,fishing and oil/gas).

关键词： Ecosystem restoration Robotic manipulation Acoustic tracking Fishery resources Artificial reefs

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A deep learning framework to emulate density functional theory

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npj Computational Materials 2023年第1期9卷 687-695页

作者： Beatriz G.del rio Brandon Phan Rampi Ramprasad Departamento de Física Teórica Atómica yÓpticaUniversidad de ValladolidPaseo de Belén 747011 ValladolidSpain School of Materials Science and Engineering Georgia Institute of Technology771 Ferst Drive NWAtlantaGA 30332USA

Density functional theory(DFT)has been a critical component of computational materials research and discovery for ***,the computational cost of solving the central Kohn–Sham equation remains a major obstacle for dynamical studies of complex phenomena ***,we propose an end-to-end machine learning(ML)model that emulates the essence of DFT by mapping the atomic structure of the system to its electronic charge density,followed by the prediction of other properties such as density of states,potential energy,atomic forces,and stress tensor,by using the atomic structure and charge density as *** deep learning model successfully bypasses the explicit solution of the Kohn-Sham equation with orders of magnitude speedup(linear scaling with system size with a small prefactor),while maintaining chemical *** demonstrate the capability of this ML-DFT concept for an extensive database of organic molecules,polymer chains,and polymer crystals.

关键词： functional theory system

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Recent Advances on Early-Stage Fire-Warning Systems: Mechanism, Performance, and Perspective

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Nano-Micro Letters 2022年第12期14卷 106-136页

作者： Xiaolu Li Antonio Vazquez-Lopez Jose Sanchez del rio Saez De-Yi Wang IMDEA Materials Institute C/Eric Kandel228906 GetafeMadridSpain E.T.S.de Ingenieros de Caminos Universidad Politecnica de MadridCalle Profesor Aranguren 328040 MadridSpain Departamento de Ingenieria Electrica Electronica Automatica y Fisica AplicadaETSIDIUniversidad Politecnica de MadridRonda de Valencia 328012 MadridSpain

Early-stage fire-warning systems(EFWSs)have attracted significant attention owing to their superiority in detecting fire situations occurring in the pre-combustion *** progress on EFWSs has been achieved recently,and they have presented a considerable possibility for more evacuation time to control constant unintentional fire hazards in our daily *** review mainly makes a comprehensive summary of the current EFWSs,including the working mechanisms and their *** to the different working mechanisms,fire alarms can be classified into graphene oxide-based fire alarms,semiconductor-based fire alarms,thermoelectric-based fire alarms,and fire alarms on other working ***,the challenge and prospect for EFWSs are briefly provided by comparing the art of state of fire *** work can propose a more comprehensive understanding of EFWSs and a guideline for the cutting-edge development direction of EFWSs for readers.

关键词： Smart thermosensitive fire sensors Working mechanism Response time Signal conversion

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Giant retroperitoneal liposarcoma treated with radical conservative surgery: A case report and review of literature

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World Journal of Clinical Cases 2022年第19期10卷 6636-6646页

作者： Eva Lieto Francesca Cardella Silvia Erario Giovanni del Sorbo alfonso Reginelli Gennaro Galizia Fabrizio Urraro Iacopo Panarese Annamaria Auricchio Department of Traslational Medical Sciences University of Campania"L.Vanvitelli"Naples 80128CampaniaItaly Department of Precision Medicine University of Campania"L.Vanvitelli"Naples 80138CampaniaItaly Depatment of Pathology Unit-Menthal Health University of Campania"L.Vanvitelli"Naples 80132CampaniaItaly

BACKGROUND Retroperitoneal liposarcoma(RLPS)is a rare malignant tumor of the connective tissue and usually grows to a large size,*** is currently based on collective findings from clinical examinations and computed tomography(CT)and magnetic resonance imaging,the latter of which show a fat density mass and possible surrounding organ *** resection is the main therapeutic *** efficacy and safety of further therapeutic choices,such as chemotherapy and radiotherapy,are still *** SUMMARY A 61-year-old man presented with complaint of a large left inguinal mass that had appeared suddenly,after a slight *** revealed an omental inguinal *** further clinical examination,an enormous palpable abdominal mass,continuing from the left inguinal location,was *** revealed a giant RLPS,with remarkable mass effect and wide visceral *** multidisciplinary consultation,surgical intervention was *** neoadjuvant chemotherapy and radiotherapy were precluded by the mass’large size and retroperitoneal localization,features typically associated with non-response to these types of ***,the patient underwent conservative treatment via radical surgical *** 1 year,his clinical condition remained good,with no radiological signs of *** Conservative treatment via surgery resulted in a successful outcome for a large RLPS.

关键词： Retroperitoneal liposarcoma Giant sarcoma Sarcoma surgical treatment Sarcoma diagnosis Differentiated liposarcoma Retroperitoneal sarcoma surgical outcome Case report

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Communication between bone marrow mesenchymal stem cells and multiple myeloma cells:Impact on disease progression

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World Journal of Stem Cells 2023年第5期15卷 421-437页

作者： Daniel García-Sánchez Alberto González-González Ana alfonso-Fernández Mónica del Dujo-Gutiérrez Flor M Pérez-Campo Department of Molecular Biology_IDIVAL Faculty of MedicineUniversity of CantabriaSantander 39011CantabriaSpain Servicio de Traumatología y Cirugía Ortopédica Hospital Universitario Marqués de ValdecillaInstituto de Investigación Sanitaria Valdecilla(IDIVAL)Facultad de MedicinaUniversidad de CantabriaSantander 39008CantabriaSpain

Multiple myeloma(MM)is a hematological malignancy characterized by the accumulation of immunoglobulin-secreting clonal plasma cells at the bone marrow(BM).The interaction between MM cells and the BM microenvironment,and specifically BM mesenchymal stem cells(BM-MSCs),has a key role in the pathophysiology of this *** data support the idea that BM-MSCs not only enhance the proliferation and survival of MM cells but are also involved in the resistance of MM cells to certain drugs,aiding the progression of this hematological *** relation of MM cells with the resident BM-MSCs is a two-way *** modulate the behavior of BM-MSCs altering their expression profile,proliferation rate,osteogenic potential,and expression of senescence *** turn,modified BM-MSCs can produce a set of cytokines that would modulate the BM microenvironment to favor disease *** interaction between MM cells and BM-MSCs can be mediated by the secretion of a variety of soluble factors and extracellular vesicles carrying microRNAs,long non-coding RNAs or other ***,the communication between these two types of cells could also involve a direct physical interaction through adhesion molecules or tunneling ***,understanding the way this communication works and developing strategies to interfere in the process,would preclude the expansion of the MM cells and might offer alternative treatments for this incurable disease.

关键词： Multiple myeloma Mesenchymal stem cells Bone marrow microenvironment Soluble factors Extra-cellular vesicles Cells adhesion molecules Tunnellingnanotubes

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Leaf fossils of Sabalites(Arecaceae)from the Oligocene of northern Vietnam and their paleoclimatic implications

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Plant Diversity 2022年第4期44卷 406-416页

作者： Ai Song Jia Liu Shui-Qing Liang Truong Van Do Hung Ba Nguyen Wei-Yu-Dong Deng Lin-Bo Jia Cedric del rio Gaurav Srivastava Zhuo Feng Zhe-Kun Zhou Jian Huang Tao Su Institute of Palaeontology Yunnan Key Laboratory for PalaeobiologyMEC International Joint Laboratory for Palaeobiology and PalaeoenvironmentYunnan Key Laboratory of Earth System ScienceYunnan UniversityKunming650500China CAS Key Laboratory of Tropical Forest Ecology Xishuangbanna Tropical Botanical GardenChinese Academy of SciencesMengla666303China Vietnam National Museum of Nature Vietnam Academy of Science and Technology18 Hoang Quoc VietHanoiViet Nam Graduate Academy of Science and Technology Vietnam Academy of Science and Technology18 Hoang Quoc VietHanoiViet Nam CAS Key Laboratory of Plant Diversity and Biogeography of East Asia Kunming Institute of BotanyChinese Academy of SciencesKunming650204China Birbal Sahni Institute of Palaeosciences Lucknow226007India

Recent paleobotanical investigations in Vietnam provide a good opportunity to improve our understanding of the biodiversity and paleoclimatic conditions in the geological past of Southeast ***(Arecaceae)are a diverse family of typical thermophilous plants with a relatively low tolerance for *** this study,we describe well-preserved fossil palm leaves from the Oligocene Dong Ho Formation of Hoanh Bo Basin,northern *** of the fossil leaves,such as a fan-shaped costapalmate lamina,an unarmed petiole,a costa slightly enlarged at the base that then tapers distally into the blade,and well-preserved amphistomatic leaves with cuticles,suggest that they represent a new fossil species,which we herein designate Sabalites colaniae ***,***,*** et *** *** with other paleontological and palaeoclimatic evidence,we conclude that a warm climate prevailed in northern Vietnam and nearby areas during the Oligocene.

关键词： Fossil Leaf Oligocene Paleoclimate Palm Vietnam

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Selective suspension of single layer graphene mechanochemically exfoliated from carbon nanofibres

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Nano Research 2014年第7期7卷 963-972页

作者： Antonio Esau del rio-CastilloI Cesar Merino Enrique Diez-Barra Ester Vazquez Departamento de Quimica Orgdnica Facultad de Ciencias y Tecnologfas Qufmicas-IRICA Universidad de Castilla-La Mancha 13071 Ciudad Real Spain Grupo Antolin Ingenieria S.A. Burgos E09007 Spain

This paper presents the first report of the successful ball-milling exfoliation of graphitic filaments (GANF® carbon nanofibres) into single layer graphene. The addition of small amounts of solvent during the milling process makes it possible to enhance the intercalation of the exfoliating agent (melamine) between the graphene layers, thus promoting exceptional exfoliation. Advantage has also been taken of the fact that the Hansen solubility parameters of graphene are different from those of carbon fibres, which allows single and few-layer graphene to be suspended in a particular solvent, thus discriminating them from poorly exfoliated carbon nanofibres.

关键词：碳纳米纤维悬浮液石墨机械化学单层溶解度参数三聚氰胺纤维鉴别

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