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[PMID]:28456662
[Au] Autor:Kinkar L; Laurimäe T; Sharbatkhori M; Mirhendi H; Kia EB; Ponce-Gordo F; Andresiuk V; Simsek S; Lavikainen A; Irshadullah M; Umhang G; Oudni-M'rad M; Acosta-Jamett G; Rehbein S; Saarma U
[Ad] Endereço:Department of Zoology, Institute of Ecology and Earth Sciences, University of Tartu, Vanemuise 46, 50410 Tartu, Estonia.
[Ti] Título:New mitogenome and nuclear evidence on the phylogeny and taxonomy of the highly zoonotic tapeworm Echinococcus granulosus sensu stricto.
[So] Source:Infect Genet Evol;52:52-58, 2017 Aug.
[Is] ISSN:1567-7257
[Cp] País de publicação:Netherlands
[La] Idioma:eng
[Ab] Resumo:Cystic echinococcosis, a zoonotic disease caused by Echinococcus granulosus sensu lato (s. l.), is a significant global public health concern. Echinococcus granulosus s. l. is currently divided into numerous genotypes (G1-G8 and G10) of which G1-G3 are the most frequently implicated genotypes in human infections. Although it has been suggested that G1-G3 could be regarded as a distinct species E. granulosus sensu stricto (s. s.), the evidence to support this is inconclusive. Most importantly, data from nuclear DNA that provide means to investigate the exchange of genetic material between G1-G3 is lacking as none of the published nuclear DNA studies have explicitly included G2 or G3. Moreover, the commonly used relatively short mtDNA sequences, including the complete cox1 gene, have not allowed unequivocal differentiation of genotypes G1-G3. Therefore, significantly longer mtDNA sequences are required to distinguish these genotypes with confidence. The main aim of this study was to evaluate the phylogenetic relations and taxonomy of genotypes G1-G3 using sequences of nearly complete mitogenomes (11,443bp) and three nuclear loci (2984bp). A total of 23 G1-G3 samples were analysed, originating from 5 intermediate host species in 10 countries. The mtDNA data demonstrate that genotypes G1 and G3 are distinct mitochondrial genotypes (separated by 37 mutations), whereas G2 is not a separate genotype or even a monophyletic cluster, but belongs to G3. Nuclear data revealed no genetic separation of G1 and G3, suggesting that these genotypes form a single species due to ongoing gene flow. We conclude that: (a) in the taxonomic sense, genotypes G1 and G3 can be treated as a single species E. granulosus s. s.; (b) genotypes G1 and G3 should be regarded as distinct genotypes only in the context of mitochondrial data; (c) we recommend excluding G2 from the genotype list.
[Mh] Termos MeSH primário: Núcleo Celular/genética
DNA de Helmintos/genética
Echinococcus granulosus/classificação
Mitocôndrias/genética
[Mh] Termos MeSH secundário: África do Norte
Animais
Ásia
Echinococcus granulosus/genética
Echinococcus granulosus/isolamento & purificação
Echinococcus granulosus/metabolismo
Europa (Continente)
Genoma Mitocondrial
Genótipo
Seres Humanos
Filogenia
Filogeografia
América do Sul
Zoonoses/parasitologia
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (DNA, Helminth)
[Em] Mês de entrada:1803
[Cu] Atualização por classe:180309
[Lr] Data última revisão:
180309
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170501
[St] Status:MEDLINE


  2 / 8609 MEDLINE  
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[PMID]:29252210
[Au] Autor:Lange R; Martinez-Garrido C; Ventura A
[Ad] Endereço:Rense Lange, 107 Carefree Dr., Chatham, IL 62629, USA, Rense.Lange@gmail.com.
[Ti] Título:I'm scared to go to School! Capturing the Effects of Chronic Daily Fears on Students' Concept of Self.
[So] Source:J Appl Meas;18(4):420-433, 2017.
[Is] ISSN:1529-7713
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:Students may experience considerable fear and stress in school settings, and based on Dweck's (2006) notion of "mindset" we hypothesized that fear introduces qualitative changes in students' self-concepts. Hypotheses were tested on 3847 third-grade students from nine Iberoamerican countries (Bolivia, Chile, Colombia, Cuba, Ecuador, Panama, Peru, Spain, and Venezuela), who completed Murillo's (2007) adaptation of Marsh' (1988) SDQ-I. Rasch scaling indicated that the information-content of High-Fear students' ratings was more localized across the latent dimension than was that of Low-Fear students, and their ratings also showed less cognitive variety. The resulting measurement distortions could be captured via logistic regression over the ratings' residuals. Also, using training and validation samples (with respectively 60 and 40% of all cases), it proved possible to predict students' fear levels and their gender. We see the present findings as a first step towards implementing an online warning and detection system for signs of bullying among students.
[Mh] Termos MeSH primário: Ansiedade/epidemiologia
Ansiedade/psicologia
Interpretação Estatística de Dados
Psicometria/métodos
Estudantes/psicologia
Estudantes/estatística & dados numéricos
Inquéritos e Questionários
[Mh] Termos MeSH secundário: Adolescente
Algoritmos
Ansiedade/diagnóstico
Criança
Medo/psicologia
Feminino
Seres Humanos
Masculino
Modelos Estatísticos
Reprodutibilidade dos Testes
Sensibilidade e Especificidade
América do Sul/epidemiologia
Adulto Jovem
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Em] Mês de entrada:1803
[Cu] Atualização por classe:180308
[Lr] Data última revisão:
180308
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:171219
[St] Status:MEDLINE


  3 / 8609 MEDLINE  
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[PMID]:29385162
[Au] Autor:González CR; Muscarsel Isla ML; Vitullo AD
[Ad] Endereço:Centro de Estudios Biomédicos, Biotecnológicos, Ambientales y Diagnóstico- Universidad Maimónides, Buenos Aires, Argentina.
[Ti] Título:The balance between apoptosis and autophagy regulates testis regression and recrudescence in the seasonal-breeding South American plains vizcacha, Lagostomus maximus.
[So] Source:PLoS One;13(1):e0191126, 2018.
[Is] ISSN:1932-6203
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:Mammalian testis undergoes deep changes in their architecture and function during photoregression conditions in seasonal breeders. Particularly, the testicular mechanisms that regulate the transition between the active (functional) and inactive (regression) stage vary between species. The aim of the present study was to analyze the incidence of proliferation, apoptosis and autophagy in the testicular seminiferous ephitelium of a seasonal breeder, Lagostomus maximus, during the annual reproductive cycle. We observed that proliferating spermatogonia increased from the active testis until reaching the maximum peak in the activating testis. During the annual reproductive cycle, the quantity of apoptotic-TUNEL positive spermatogonia and meiotic germ cells was constant and this might be regulated by the members of the BCL2 family. Only in the activating testis, apoptosis of germ cells was almost undetectable. The analysis of the autophagic-related proteins BECN1 and LC3 showed their localization in Leydig cells and the germ cells in the active and activating testis. In the inactive testis, BECN1 and LC3 ceased to be immunolocalized within the seminiferous tubules and the mRNA expression of both regulators decreased. Moreover, the expression of BECN1 and LC3 and also the apoptotic index were up regulated in testicular cultures subjected to nutritional stress. These results suggest a possible interaction between apoptosis and autophagy in the active and activating testis (characterized by high metabolic requirement and nutrient), where autophagy could promote survival over cell death. In the inactive testis, the absence of autophagic-related proteins might explain the massive loss of germ cells, suggesting that autophagy plays new and key role in the alterations of the seminiferous epithelium during photoregression.
[Mh] Termos MeSH primário: Apoptose
Autofagia
Cruzamento
Roedores/fisiologia
Estações do Ano
Testículo/citologia
[Mh] Termos MeSH secundário: Animais
Autofagia/genética
Masculino
Estado Nutricional
Reação em Cadeia da Polimerase em Tempo Real
Túbulos Seminíferos/anatomia & histologia
América do Sul
Estresse Fisiológico
Testículo/metabolismo
[Pt] Tipo de publicação:JOURNAL ARTICLE; RESEARCH SUPPORT, NON-U.S. GOV'T
[Em] Mês de entrada:1802
[Cu] Atualização por classe:180223
[Lr] Data última revisão:
180223
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:180201
[St] Status:MEDLINE
[do] DOI:10.1371/journal.pone.0191126


  4 / 8609 MEDLINE  
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[PMID]:28748943
[Au] Autor:Sené M; Gilmore I; Janssen JT
[Ti] Título:Metrology is key to reproducing results.
[So] Source:Nature;547(7664):397-399, 2017 07 25.
[Is] ISSN:1476-4687
[Cp] País de publicação:England
[La] Idioma:eng
[Mh] Termos MeSH primário: Acurácia dos Dados
Coleta de Dados/métodos
Coleta de Dados/normas
[Mh] Termos MeSH secundário: Animais
Biomassa
Florestas
Mapas como Assunto
Meteorologia
Radioterapia/métodos
Radioterapia/normas
Padrões de Referência
Erro Experimental
América do Sul
Incerteza
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Em] Mês de entrada:1712
[Cu] Atualização por classe:180215
[Lr] Data última revisão:
180215
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170728
[St] Status:MEDLINE
[do] DOI:10.1038/547397a


  5 / 8609 MEDLINE  
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[PMID]:29298344
[Au] Autor:Fisch-Muller S; Mol JHA; Covain R
[Ad] Endereço:Natural History Museum, Department of Herpetology and Ichthyology, Geneva, Switzerland.
[Ti] Título:An integrative framework to reevaluate the Neotropical catfish genus Guyanancistrus (Siluriformes: Loricariidae) with particular emphasis on the Guyanancistrus brevispinis complex.
[So] Source:PLoS One;13(1):e0189789, 2018.
[Is] ISSN:1932-6203
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:Characterizing and naming species becomes more and more challenging due to the increasing difficulty of accurately delineating specific bounderies. In this context, integrative taxonomy aims to delimit taxonomic units by leveraging the complementarity of multiple data sources (geography, morphology, genetics, etc.). However, while the theoretical framework of integrative taxonomy has been explicitly stated, methods for the simultaneous analysis of multiple data sets are poorly developed and in many cases different information sources are still explored successively. Multi-table methods developed in the field of community ecology provide such an intregrative framework. In particular, multiple co-inertia analysis is flexible enough to allow the integration of morphological, distributional, and genetic data in the same analysis. We have applied this powerfull approach to delimit species boundaries in a group of poorly differentiated catfishes belonging to the genus Guyanancistrus from the Guianas region of northeastern South America. Because the species G. brevispinis has been claimed to be a species complex consisting of five species, particular attention was paid to taxon. Separate analyses indicated the presence of eight distinct species of Guyanancistrus, including five new species and one new genus. However, none of the preliminary analyses revealed different lineages within G. brevispinis, and the multi-table analysis revealed three intraspecific lineages. After taxonomic clarifications and description of the new genus, species and subspecies, a reappraisal of the biogeography of Guyanancistrus members was performed. This analysis revealed three distinct dispersals from the Upper reaches of Amazonian tributaries toward coastal rivers of the Eastern Guianas Ecoregion. The central role played by the Maroni River, as gateway from the Amazon basin, was confirmed. The Maroni River was also found to be a center of speciation for Guyanancistrus (with three species and two subspecies), as well as a source of dispersal of G. brevispinis toward the other main basins of the Eastern Guianas.
[Mh] Termos MeSH primário: Peixes-Gato/classificação
Clima Tropical
[Mh] Termos MeSH secundário: Animais
Filogeografia
Rios
América do Sul
[Pt] Tipo de publicação:JOURNAL ARTICLE; RESEARCH SUPPORT, NON-U.S. GOV'T
[Em] Mês de entrada:1802
[Cu] Atualização por classe:180210
[Lr] Data última revisão:
180210
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:180104
[St] Status:MEDLINE
[do] DOI:10.1371/journal.pone.0189789


  6 / 8609 MEDLINE  
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[PMID]:29324793
[Au] Autor:Poljak S; Ferreiro AM; Chiappero MB; Sánchez J; Gabrielli M; Lizarralde MS
[Ad] Endereço:Laboratorio de Ecología Molecular, Centro Austral de Investigaciones Científicas, Consejo Nacional de Investigaciones Científicas y Tecnológicas, Ushuaia, Tierra del Fuego, Argentina.
[Ti] Título:Phylogeography of screaming hairy armadillo Chaetophractus vellerosus: Successive disjunctions and extinctions due to cyclical climatic changes in southern South America.
[So] Source:PLoS One;13(1):e0190944, 2018.
[Is] ISSN:1932-6203
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:Little is known about phylogeography of armadillo species native to southern South America. In this study we describe the phylogeography of the screaming hairy armadillo Chaetophractus vellerosus, discuss previous hypothesis about the origin of its disjunct distribution and propose an alternative one, based on novel information on genetic variability. Variation of partial sequences of mitochondrial DNA Control Region (CR) from 73 individuals from 23 localities were analyzed to carry out a phylogeographic analysis using neutrality tests, mismatch distribution, median-joining (MJ) network and paleontological records. We found 17 polymorphic sites resulting in 15 haplotypes. Two new geographic records that expand known distribution of the species are presented; one of them links the distributions of recently synonimized species C. nationi and C. vellerosus. Screaming hairy armadillo phylogeographic pattern can be addressed as category V of Avise: common widespread linages plus closely related lineages confined to one or a few nearby locales each. The older linages are distributed in the north-central area of the species distribution range in Argentina (i.e. ancestral area of distribution). C. vellerosus seems to be a low vagility species that expanded, and probably is expanding, its distribution range while presents signs of genetic structuring in central areas. To explain the disjunct distribution, a hypothesis of extinction of the species in intermediate areas due to quaternary climatic shift to more humid conditions was proposed. We offer an alternative explanation: long distance colonization, based on null genetic variability, paleontological record and evidence of alternance of cold/arid and temperate/humid climatic periods during the last million years in southern South America.
[Mh] Termos MeSH primário: Tatus/genética
Clima
[Mh] Termos MeSH secundário: Animais
DNA Mitocondrial
Extinção Biológica
Haplótipos
Umidade
Periodicidade
Filogeografia
América do Sul
[Pt] Tipo de publicação:JOURNAL ARTICLE; RESEARCH SUPPORT, NON-U.S. GOV'T
[Nm] Nome de substância:
0 (DNA, Mitochondrial)
[Em] Mês de entrada:1802
[Cu] Atualização por classe:180206
[Lr] Data última revisão:
180206
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:180112
[St] Status:MEDLINE
[do] DOI:10.1371/journal.pone.0190944


  7 / 8609 MEDLINE  
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[PMID]:28748917
[Au] Autor:Smyth EC; Lagergren J; Fitzgerald RC; Lordick F; Shah MA; Lagergren P; Cunningham D
[Ad] Endereço:Department of Gastrointestinal Oncology, Royal Marsden Hospital, Fulham Road, London SW3 6JJ, UK.
[Ti] Título:Oesophageal cancer.
[So] Source:Nat Rev Dis Primers;3:17048, 2017 Jul 27.
[Is] ISSN:2056-676X
[Cp] País de publicação:England
[La] Idioma:eng
[Ab] Resumo:Oesophageal cancer is the sixth most common cause of cancer-related death worldwide and is therefore a major global health challenge. The two major subtypes of oesophageal cancer are oesophageal squamous cell carcinoma (OSCC) and oesophageal adenocarcinoma (OAC), which are epidemiologically and biologically distinct. OSCC accounts for 90% of all cases of oesophageal cancer globally and is highly prevalent in the East, East Africa and South America. OAC is more common in developed countries than in developing countries. Preneoplastic lesions are identifiable for both OSCC and OAC; these are frequently amenable to endoscopic ablative therapies. Most patients with oesophageal cancer require extensive treatment, including chemotherapy, chemoradiotherapy and/or surgical resection. Patients with advanced or metastatic oesophageal cancer are treated with palliative chemotherapy; those who are human epidermal growth factor receptor 2 (HER2)-positive may also benefit from trastuzumab treatment. Immuno-oncology therapies have also shown promising early results in OSCC and OAC. In this Primer, we review state-of-the-art knowledge on the biology and treatment of oesophageal cancer, including screening, endoscopic ablative therapies and emerging molecular targets, and we discuss best practices in chemotherapy, chemoradiotherapy, surgery and the maintenance of patient quality of life.
[Mh] Termos MeSH primário: Adenocarcinoma/epidemiologia
Carcinoma de Células Escamosas/epidemiologia
Neoplasias Esofágicas/epidemiologia
Neoplasias Esofágicas/patologia
[Mh] Termos MeSH secundário: Adenocarcinoma/patologia
África Oriental/epidemiologia
Idoso
Idoso de 80 Anos ou mais
Antineoplásicos Imunológicos/uso terapêutico
Carcinoma de Células Escamosas/patologia
Quimiorradioterapia/métodos
Endoscopia do Sistema Digestório/métodos
Neoplasias Esofágicas/tratamento farmacológico
Neoplasias Esofágicas/cirurgia
Feminino
Seres Humanos
Masculino
Meia-Idade
Prognóstico
Receptor ErbB-2/metabolismo
América do Sul/epidemiologia
Taxa de Sobrevida
Trastuzumab/uso terapêutico
Resultado do Tratamento
[Pt] Tipo de publicação:JOURNAL ARTICLE; REVIEW
[Nm] Nome de substância:
0 (Antineoplastic Agents, Immunological); EC 2.7.10.1 (ERBB2 protein, human); EC 2.7.10.1 (Receptor, ErbB-2); P188ANX8CK (Trastuzumab)
[Em] Mês de entrada:1802
[Cu] Atualização por classe:180205
[Lr] Data última revisão:
180205
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170728
[St] Status:MEDLINE
[do] DOI:10.1038/nrdp.2017.48


  8 / 8609 MEDLINE  
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[PMID]:27775828
[Au] Autor:de Jonge P; Roest AM; Lim CC; Florescu SE; Bromet EJ; Stein DJ; Harris M; Nakov V; Caldas-de-Almeida JM; Levinson D; Al-Hamzawi AO; Haro JM; Viana MC; Borges G; O'Neill S; de Girolamo G; Demyttenaere K; Gureje O; Iwata N; Lee S; Hu C; Karam A; Moskalewicz J; Kovess-Masfety V; Navarro-Mateu F; Browne MO; Piazza M; Posada-Villa J; Torres Y; Ten Have ML; Kessler RC; Scott KM
[Ad] Endereço:Department of Psychiatry, Interdisciplinary Center Psychopathology and Emotion Regulation (ICPE), University Medical Center Groningen, University of Groningen, Groningen, The Netherlands.
[Ti] Título:Cross-national epidemiology of panic disorder and panic attacks in the world mental health surveys.
[So] Source:Depress Anxiety;33(12):1155-1177, 2016 12.
[Is] ISSN:1520-6394
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:CONTEXT: The scarcity of cross-national reports and the changes in Diagnostic and Statistical Manual version 5 (DSM-5) regarding panic disorder (PD) and panic attacks (PAs) call for new epidemiological data on PD and PAs and its subtypes in the general population. OBJECTIVE: To present representative data about the cross-national epidemiology of PD and PAs in accordance with DSM-5 definitions. DESIGN AND SETTING: Nationally representative cross-sectional surveys using the World Health Organization Composite International Diagnostic Interview version 3.0. PARTICIPANTS: Respondents (n = 142,949) from 25 high, middle, and lower-middle income countries across the world aged 18 years or older. MAIN OUTCOME MEASURES: PD and presence of single and recurrent PAs. RESULTS: Lifetime prevalence of PAs was 13.2% (SE 0.1%). Among persons that ever had a PA, the majority had recurrent PAs (66.5%; SE 0.5%), while only 12.8% fulfilled DSM-5 criteria for PD. Recurrent PAs were associated with a subsequent onset of a variety of mental disorders (OR 2.0; 95% CI 1.8-2.2) and their course (OR 1.3; 95% CI 1.2-2.4) whereas single PAs were not (OR 1.1; 95% CI 0.9-1.3 and OR 0.7; 95% CI 0.6-0.8). Cross-national lifetime prevalence estimates were 1.7% (SE 0.0%) for PD with a median age of onset of 32 (IQR 20-47). Some 80.4% of persons with lifetime PD had a lifetime comorbid mental disorder. CONCLUSIONS: We extended previous epidemiological data to a cross-national context. The presence of recurrent PAs in particular is associated with subsequent onset and course of mental disorders beyond agoraphobia and PD, and might serve as a generic risk marker for psychopathology.
[Mh] Termos MeSH primário: Inquéritos Epidemiológicos/estatística & dados numéricos
Internacionalidade
Transtorno de Pânico/epidemiologia
[Mh] Termos MeSH secundário: Adolescente
Adulto
Idoso
Idoso de 80 Anos ou mais
Ásia/epidemiologia
Austrália/epidemiologia
Estudos Transversais
Europa (Continente)/epidemiologia
Feminino
Seres Humanos
Masculino
México/epidemiologia
Meia-Idade
Nova Zelândia/epidemiologia
Nigéria/epidemiologia
Transtorno de Pânico/psicologia
Prevalência
América do Sul/epidemiologia
Estados Unidos/epidemiologia
Adulto Jovem
[Pt] Tipo de publicação:JOURNAL ARTICLE; RESEARCH SUPPORT, NON-U.S. GOV'T; RESEARCH SUPPORT, N.I.H., EXTRAMURAL
[Em] Mês de entrada:1712
[Cu] Atualização por classe:180201
[Lr] Data última revisão:
180201
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:161025
[St] Status:MEDLINE
[do] DOI:10.1002/da.22572


  9 / 8609 MEDLINE  
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[PMID]:29281664
[Au] Autor:Strutzenberger P; Brehm G; Gottsberger B; Bodner F; Seifert CL; Fiedler K
[Ad] Endereço:Department of Botany and Biodiversity Research, Division of Tropical Ecology and Animal Biodiversity, University of Vienna, Vienna, Austria.
[Ti] Título:Diversification rates, host plant shifts and an updated molecular phylogeny of Andean Eois moths (Lepidoptera: Geometridae).
[So] Source:PLoS One;12(12):e0188430, 2017.
[Is] ISSN:1932-6203
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:Eois is one of the best-investigated genera of tropical moths. Its close association with Piper plants has inspired numerous studies on life histories, phylogeny and evolutionary biology. This study provides an updated view on phylogeny, host plant use and temporal patterns of speciation in Eois. Using sequence data (2776 bp) from one mitochondrial (COI) and one nuclear gene (Ef1-alpha) for 221 Eois species, we confirm and reinforce previous findings regarding temporal patterns of diversification. Deep diversification within Andean Eois took place in the Miocene followed by a sustained high rate of diversification until the Pleistocene when a pronounced slowdown of speciation is evident. In South America, Eois diversification is very likely to be primarily driven by the Andean uplift which occurred concurrently with the entire evolutionary history of Eois. A massively expanded dataset enabled an in-depth look into the phylogenetic signal contained in host plant usage. This revealed several independent shifts from Piper to other host plant genera and families. Seven shifts to Peperomia, the sister genus of Piper were detected, indicating that the shift to Peperomia was an easy one compared to the singular shifts to the Chloranthaceae, Siparunaceae and the Piperacean genus Manekia. The potential for close co-evolution of Eois with Piper host plants is therefore bound to be limited to smaller subsets within Neotropical Eois instead of a frequently proposed genus-wide co-evolutionary scenario. In regards to Eois systematics we confirm the monophyly of Neotropical Eois in relation to their Old World counterparts. A tentative biogeographical hypothesis is presented suggesting that Eois originated in tropical Asia and subsequently colonized the Neotropics and Africa. Within Neotropical Eois we were able to identify the existence of six clades not recognized in previous studies and confirm and reinforce the monophyly of all 9 previously delimited infrageneric clades.
[Mh] Termos MeSH primário: Mariposas/classificação
Filogenia
Plantas
[Mh] Termos MeSH secundário: Animais
DNA/genética
Complexo IV da Cadeia de Transporte de Elétrons/genética
Mariposas/genética
América do Sul
Especificidade da Espécie
[Pt] Tipo de publicação:JOURNAL ARTICLE; RESEARCH SUPPORT, NON-U.S. GOV'T
[Nm] Nome de substância:
9007-49-2 (DNA); EC 1.9.3.1 (Electron Transport Complex IV)
[Em] Mês de entrada:1801
[Cu] Atualização por classe:180129
[Lr] Data última revisão:
180129
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:171228
[St] Status:MEDLINE
[do] DOI:10.1371/journal.pone.0188430


  10 / 8609 MEDLINE  
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[PMID]:29261722
[Au] Autor:Jardim de Queiroz L; Torrente-Vilara G; Quilodran C; Rodrigues da Costa Doria C; Montoya-Burgos JI
[Ad] Endereço:Department of Genetics and Evolution, University of Geneva, Geneva, Switzerland.
[Ti] Título:Multifactorial genetic divergence processes drive the onset of speciation in an Amazonian fish.
[So] Source:PLoS One;12(12):e0189349, 2017.
[Is] ISSN:1932-6203
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:Understanding the processes that drive population genetic divergence in the Amazon is challenging because of the vast scale, the environmental richness and the outstanding biodiversity of the region. We addressed this issue by determining the genetic structure of the widespread Amazonian common sardine fish Triportheus albus (Characidae). We then examined the influence, on this species, of all previously proposed population-structuring factors, including isolation-by-distance, isolation-by-barrier (the Teotônio Falls) and isolation-by-environment using variables that describe floodplain and water characteristics. The population genetics analyses revealed an unusually strong structure with three geographical groups: Negro/Tapajós rivers, Lower Madeira/Central Amazon, and Upper Madeira. Distance-based redundancy analyses showed that the optimal model for explaining the extreme genetic structure contains all proposed structuring factors and accounts for up to 70% of the genetic structure. We further quantified the contribution of each factor via a variance-partitioning analysis. Our results demonstrate that multiple factors, often proposed as individual drivers of population divergence, have acted in conjunction to divide T. albus into three genetic lineages. Because the conjunction of multiple long-standing population-structuring processes may lead to population reproductive isolation, that is, the onset of speciation, we suggest that the multifactorial population-structuring processes highlighted in this study could account for the high speciation rate characterising the Amazon Basin.
[Mh] Termos MeSH primário: Characidae/genética
[Mh] Termos MeSH secundário: Animais
Characidae/classificação
Código de Barras de DNA Taxonômico
Haplótipos
Filogenia
América do Sul
Especificidade da Espécie
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Em] Mês de entrada:1801
[Cu] Atualização por classe:180116
[Lr] Data última revisão:
180116
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:171221
[St] Status:MEDLINE
[do] DOI:10.1371/journal.pone.0189349



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