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[PMID]:29202706
[Au] Autor:Li J; Zeng W; Zhang Y; Ko AM; Li C; Zhu H; Fu Q; Zhou H
[Ad] Endereço:College of Life Science, Jilin University, Changchun, 130023, People's Republic of China.
[Ti] Título:Ancient DNA reveals genetic connections between early Di-Qiang and Han Chinese.
[So] Source:BMC Evol Biol;17(1):239, 2017 Dec 04.
[Is] ISSN:1471-2148
[Cp] País de publicação:England
[La] Idioma:eng
[Ab] Resumo:BACKGROUND: Ancient Di-Qiang people once resided in the Ganqing region of China, adjacent to the Central Plain area from where Han Chinese originated. While gene flow between the Di-Qiang and Han Chinese has been proposed, there is no evidence to support this view. Here we analyzed the human remains from an early Di-Qiang site (Mogou site dated ~4000 years old) and compared them to other ancient DNA across China, including an early Han-related site (Hengbei site dated ~3000 years old) to establish the underlying genetic relationship between the Di-Qiang and ancestors of Han Chinese. RESULTS: We found Mogou mtDNA haplogroups were highly diverse, comprising 14 haplogroups: A, B, C, D (D*, D4, D5), F, G, M7, M8, M10, M13, M25, N*, N9a, and Z. In contrast, Mogou males were all Y-DNA haplogroup O3a2/P201; specifically one male was further assigned to O3a2c1a/M117 using targeted unique regions on the non-recombining region of the Y-chromosome. We compared Mogou to 7 other ancient and 38 modern Chinese groups, in a total of 1793 individuals, and found that Mogou shared close genetic distances with Taojiazhai (a more recent Di-Qiang population), Hengbei, and Northern Han. We modeled their interactions using Approximate Bayesian Computation, and support was given to a potential admixture of ~13-18% between the Mogou and Northern Han around 3300-3800 years ago. CONCLUSIONS: Mogou harbors the earliest genetically identifiable Di-Qiang, ancestral to the Taojiazhai, and up to ~33% paternal and ~70% of its maternal haplogroups could be found in present-day Northern Han Chinese.
[Mh] Termos MeSH primário: Grupo com Ancestrais do Continente Asiático/genética
DNA Antigo
Grupos Étnicos/genética
[Mh] Termos MeSH secundário: Teorema de Bayes
China
Cromossomos Humanos Y/genética
Simulação por Computador
DNA Mitocondrial/genética
Genética Populacional
Geografia
Haplótipos/genética
Seres Humanos
Masculino
Modelos Genéticos
Filogenia
Polimorfismo de Nucleotídeo Único/genética
Análise de Componente Principal
Probabilidade
Fatores de Tempo
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (DNA, Ancient); 0 (DNA, Mitochondrial)
[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:171206
[St] Status:MEDLINE
[do] DOI:10.1186/s12862-017-1082-0


  2 / 36397 MEDLINE  
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[PMID]:29187208
[Au] Autor:Segatto ALA; Reck-Kortmann M; Turchetto C; Freitas LB
[Ad] Endereço:Laboratory of Molecular Evolution, Department of Genetics, Universidade Federal do Rio Grande do Sul, P.O. Box 15053, Porto Alegre, RS, 91501-970, Brazil.
[Ti] Título:Multiple markers, niche modelling, and bioregions analyses to evaluate the genetic diversity of a plant species complex.
[So] Source:BMC Evol Biol;17(1):234, 2017 Nov 29.
[Is] ISSN:1471-2148
[Cp] País de publicação:England
[La] Idioma:eng
[Ab] Resumo:BACKGROUND: The classification of closely related plants is not straightforward. These morphologically similar taxa frequently maintain their inter-hybridization potential and share ancestral polymorphisms as a consequence of their recent divergence. Under the biological species concept, they may thus not be considered separate species. The Petunia integrifolia complex is especially interesting because, in addition to the features mentioned above, its taxa share a pollinator, and their geographical ranges show multiple overlaps. Here, we combined plastid genome sequences, nuclear microsatellites, AFLP markers, ecological niche modelling, and bioregions analysis to investigate the genetic variability between the different taxa of the P. integrifolia complex in a comprehensive sample covering the entire geographical range of the complex. RESULTS: Results from molecular markers did not fully align with the current taxonomic classification. Niche modelling and bioregions analyses revealed that taxa were associated with different ecological constraints, indicating that the habitat plays an important role in preserving species boundaries. For three taxa, our analyses showed a mostly conserved, non-overlapping geographical distribution over time. However, for two taxa, niche modelling found an overlapping distribution over time; these taxa were also associated with the same bioregions. CONCLUSIONS: cpDNA markers were better able to discriminate between Petunia taxa than SSRs and AFLPs. Overall, our results suggest that the P. integrifolia complex represents a continuum of individuals from distant and historically isolated populations, which share some morphological traits, but are established in four different evolutionary lineages.
[Mh] Termos MeSH primário: Ecossistema
Variação Genética
Geografia
Petunia/genética
[Mh] Termos MeSH secundário: Análise do Polimorfismo de Comprimento de Fragmentos Amplificados
DNA de Cloroplastos/genética
Marcadores Genéticos
Haplótipos/genética
Repetições de Microssatélites/genética
Filogenia
Especificidade da Espécie
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (DNA, Chloroplast); 0 (Genetic Markers)
[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:171201
[St] Status:MEDLINE
[do] DOI:10.1186/s12862-017-1084-y


  3 / 36397 MEDLINE  
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[PMID]:28453720
[Au] Autor:Chavehpour Y; Rashidian A; Raghfar H; Emamgholipour Sefiddashti S; Maroofi A
[Ad] Endereço:Department of Health Management and Economics, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran.
[Ti] Título:'Seeking affluent neighbourhoods?' a time-trend analysis of geographical distribution of hospitals in the Megacity of Tehran.
[So] Source:Health Policy Plan;32(5):669-675, 2017 Jun 01.
[Is] ISSN:1460-2237
[Cp] País de publicação:England
[La] Idioma:eng
[Ab] Resumo:Objective: Access to hospitals in megacities in low and middle income countries might be hampered by travel barriers and distance. We assessed the 'inverse care law' hypothesis: whether hospitals tended to be built in the relatively better-off areas through the time. Methods: A longitudinal time-series study (1966 to 2011) in Tehran to measure inequality in the distribution of hospital beds. We assessed correlations between the district socioeconomic status and availability of hospital beds via regression analyses, estimated correlation, Gini and concentration indices, and used GIS models to map hospital distributions through time. Finding: We found a clear relationship between socioeconomic status and number of hospital beds per capita ( P -values <0.05). Gini coefficients were about 0.6 and 0.8 for public and private beds, respectively. A third of the variations in hospital bed distribution was explained by the welfare status of the district. For every extra residential room per capita, 130 to 280 extra beds were observed per ten thousand population at the district level. In 2011, out of 162 hospitals, 110 were located in six districts around the centre and northern part of the city. During the time period only two private hospitals were built in relatively disadvantaged districts. Conclusion: Over a period of about fifty years new hospitals had been established in the relatively affluent areas of the city and the relationship between socioeconomic status of district with total, private and public beds were direct and intensive. Results indicate the problem of inequality may remain over time and be resistant to policy initiatives and major political changes.
[Mh] Termos MeSH primário: Acesso aos Serviços de Saúde
Número de Leitos em Hospital/estatística & dados numéricos
Hospitais Urbanos/estatística & dados numéricos
Fatores Socioeconômicos
[Mh] Termos MeSH secundário: Geografia
Irã (Geográfico)
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Em] Mês de entrada:1711
[Cu] Atualização por classe:180308
[Lr] Data última revisão:
180308
[Sb] Subgrupo de revista:H
[Da] Data de entrada para processamento:170429
[St] Status:MEDLINE
[do] DOI:10.1093/heapol/czw172


  4 / 36397 MEDLINE  
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[PMID]:29318305
[Au] Autor:Opatic AM; Necemer M; Kocman D; Lojen S
[Ti] Título:Geographical Origin Characterization of Slovenian Organic Garlic Using Stable Isotope and Elemental Composition Analyses.
[So] Source:Acta Chim Slov;64(4):1048-1055, 2017 Dec.
[Is] ISSN:1318-0207
[Cp] País de publicação:Slovenia
[La] Idioma:eng
[Ab] Resumo:In the present research, the applicability of stable isotope (δ13C, δ15N, δ34S, δ18O) and multi-element (P, S, Cl, K, Ca, Zn, Br, Rb, Sr) data for determining the geographical origin of garlic (Allium sativum L.) at the scale of Slovenia was examined. Slovenia is a rather small country (20273 km2) with significant geological and biological diversity. Garlic, valued for its medicinal properties, was collected from Slovenian farms with certified organic production and analyzed by elemental analyzer isotope ratio mass spectrometry combined with energy dispersive X- ray fluorescence spectrometry. Multivariate discriminant analysis (DA) revealed a distinction between four Slovenian macro-regions: the Alpine, Dinaric, Mediterranean and Pannonian. The model was validated through a leave-10%, 20% and 25% out cross validation. The overall success rate of correctly reclassified samples was 77% (on average), indicating that the model and the proposed methodology could be a promising tool for rapid, inexpensive and robust screening to control the provenance of garlic samples.
[Mh] Termos MeSH primário: Alho/química
[Mh] Termos MeSH secundário: Elementos
Geografia
Isótopos/análise
Espectrometria de Massas
Eslovênia
Espectrometria por Raios X
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Elements); 0 (Isotopes)
[Em] Mês de entrada:1803
[Cu] Atualização por classe:180306
[Lr] Data última revisão:
180306
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:180111
[St] Status:MEDLINE


  5 / 36397 MEDLINE  
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[PMID]:29362437
[Au] Autor:Otero XL; De La Peña-Lastra S; Pérez-Alberti A; Ferreira TO; Huerta-Diaz MA
[Ad] Endereço:Departamento de Edafoloxía e Química Agrícola, Campus Vida, Facultade de Bioloxía, Universidade de Santiago de Compostela, 15782, Santiago de Compostela, Spain.
[Ti] Título:Seabird colonies as important global drivers in the nitrogen and phosphorus cycles.
[So] Source:Nat Commun;9(1):246, 2018 01 23.
[Is] ISSN:2041-1723
[Cp] País de publicação:England
[La] Idioma:eng
[Ab] Resumo:Seabirds drastically transform the environmental conditions of the sites where they establish their breeding colonies via soil, sediment, and water eutrophication (hereafter termed ornitheutrophication). Here, we report worldwide amounts of total nitrogen (N) and total phosphorus (P) excreted by seabirds using an inventory of global seabird populations applied to a bioenergetics model. We estimate these fluxes to be 591 Gg N y and 99 Gg P y , respectively, with the Antarctic and Southern coasts receiving the highest N and P inputs. We show that these inputs are of similar magnitude to others considered in global N and P cycles, with concentrations per unit of surface area in seabird colonies among the highest measured on the Earth's surface. Finally, an important fraction of the total excreted N (72.5 Gg y ) and P (21.8 Gg y ) can be readily solubilized, increasing their short-term bioavailability in continental and coastal waters located near the seabird colonies.
[Mh] Termos MeSH primário: Aves/fisiologia
Ecossistema
Nitrogênio/metabolismo
Fósforo/metabolismo
[Mh] Termos MeSH secundário: Migração Animal/fisiologia
Animais
Regiões Antárticas
Aves/classificação
Conservação dos Recursos Naturais
Água Doce
Geografia
Ciclo do Nitrogênio
Oceanos e Mares
Água do Mar
Especificidade da Espécie
[Pt] Tipo de publicação:JOURNAL ARTICLE; RESEARCH SUPPORT, NON-U.S. GOV'T
[Nm] Nome de substância:
27YLU75U4W (Phosphorus); N762921K75 (Nitrogen)
[Em] Mês de entrada:1803
[Cu] Atualização por classe:180305
[Lr] Data última revisão:
180305
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:180125
[St] Status:MEDLINE
[do] DOI:10.1038/s41467-017-02446-8


  6 / 36397 MEDLINE  
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[PMID]:29024751
[Au] Autor:Mokodongan DF; Montenegro J; Mochida K; Fujimoto S; Ishikawa A; Kakioka R; Yong L; Mulis; Hadiaty RK; Mandagi IF; Masengi KWA; Wachi N; Hashiguchi Y; Kitano J; Yamahira K
[Ad] Endereço:Tropical Biosphere Research Center, University of the Ryukyus, Okinawa 903-0213, Japan. Electronic address: dh4ni31.ichi.san@gmail.com.
[Ti] Título:Phylogenomics reveals habitat-associated body shape divergence in Oryzias woworae species group (Teleostei: Adrianichthyidae).
[So] Source:Mol Phylogenet Evol;118:194-203, 2018 Jan.
[Is] ISSN:1095-9513
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:The Oryzias woworae species group, composed of O. asinua, O. wolasi, and O. woworae, is widely distributed in southeastern Sulawesi, an island in the Indo-Australian Archipelago. Deep-elongated body shape divergence is evident among these three species to the extent that it is used as a species-diagnostic character. These fishes inhabit a variety of habitats, ranging from upper streams to ponds, suggesting that the body shape divergence among the three species may reflect adaptation to local environments. First, our geometric morphometrics among eight local populations of this species group revealed that the three species cannot be separated by body shape and that riverine populations had more elongated bodies and longer caudal parts than lacustrine populations. Second, their phylogenetic relationships did not support the presence of three species; phylogenies using mitochondrial DNA and genomic data obtained from RNA-Seq revealed that the eight populations could not be sorted into three different clades representing three described species. Third, phylogenetic corrections of body shape variations and ancestral state reconstruction of body shapes demonstrated that body shape divergence between riverine and lacustrine populations persisted even if the phylogenies were considered and that body shape evolved rapidly irrespective of phylogeny. Sexual dimorphism in body shape was also evident, but the degree of dimorphism did not significantly differ between riverine and lacustrine populations after phylogenetic corrections, suggesting that sexual selection may not substantially contribute to geographical variations in body shape. Overall, these results indicate that the deep-elongated body shape divergence of the O. woworae species group evolved locally in response to habitat environments, such as water currents, and that a thorough taxonomic reexamination of the O. woworae species group may be necessary.
[Mh] Termos MeSH primário: Ecossistema
Genômica
Oryzias/anatomia & histologia
Oryzias/genética
Filogenia
[Mh] Termos MeSH secundário: Animais
Teorema de Bayes
Núcleo Celular/genética
DNA Mitocondrial/genética
Feminino
Geografia
Indonésia
Masculino
Mitocôndrias/genética
Análise de Componente Principal
Especificidade da Espécie
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (DNA, Mitochondrial)
[Em] Mês de entrada:1803
[Cu] Atualização por classe:180302
[Lr] Data última revisão:
180302
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:171013
[St] Status:MEDLINE


  7 / 36397 MEDLINE  
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[PMID]:28989098
[Au] Autor:Garbino GST; Martins-Junior AMG
[Ad] Endereço:PPG-Zoologia, Departamento de Zoologia, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil. Electronic address: antonio_mgmartins@hotmail.com.
[Ti] Título:Phenotypic evolution in marmoset and tamarin monkeys (Cebidae, Callitrichinae) and a revised genus-level classification.
[So] Source:Mol Phylogenet Evol;118:156-171, 2018 Jan.
[Is] ISSN:1095-9513
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:Marmosets and tamarins (Cebidae, Callitrichinae) constitute the most species-rich subfamily of New World monkeys and one of the most diverse phenotypically. Despite the profusion of molecular phylogenies of the group, the evolution of phenotypic characters under the rapidly-emerging consensual phylogeny of the subfamily has been little studied, resulting in taxonomic proposals that have limited support from other datasets. We examined the evolution of 18 phenotypic traits (5 continuous and 13 discrete), including pelage, skull, dentition, postcrania, life-history and vocalization variables in a robust molecular phylogeny of marmoset and tamarin monkeys, quantifying their phylogenetic signal and correlations among some of the traits. At the family level, our resulting topology supports owl monkeys (Aotinae) as sister group of Callitrichinae. The topology of the callitrichine tree was congruent with previous studies except for the position of the midas group of Saguinus tamarins, which placement as sister of the bicolor group did not receive significant statistical support in both Maximum Parsimony and Bayesian Inference analyses. Our results showed that the highest value of phylogenetic signal among continuous traits was displayed by the long call character and the lowest was exhibited in the home range, intermediate values were found in characters related to osteology and skull size. Among discrete traits, pelage and osteology had similar phylogenetic signal. Based on genetic, osteological, pelage and vocalization data, we present an updated genus-level taxonomy of Callitrichinae, which recognizes six genera in the subfamily: Callimico, Callithrix, Cebuella, Mico, Leontopithecus and Saguinus. To reflect their phenotypic distinctiveness and to avoid the use of the informal "species group", we subdivided Saguinus in the subgenera Leontocebus, Saguinus and Tamarinus (revalidated here).
[Mh] Termos MeSH primário: Evolução Biológica
Callitrichinae/classificação
[Mh] Termos MeSH secundário: Animais
Teorema de Bayes
Tamanho Corporal
Callithrix/anatomia & histologia
Callithrix/classificação
Callitrichinae/anatomia & histologia
Geografia
Comportamento de Retorno ao Território Vital
Funções Verossimilhança
Fenótipo
Filogenia
Crânio/anatomia & histologia
Vocalização Animal/fisiologia
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Em] Mês de entrada:1803
[Cu] Atualização por classe:180302
[Lr] Data última revisão:
180302
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:171010
[St] Status:MEDLINE


  8 / 36397 MEDLINE  
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[PMID]:28964886
[Au] Autor:Zhuang Y; Clamp JC; Yi Z; Ji D
[Ad] Endereço:Ocean School, Yantai University, Yantai 264005, China.
[Ti] Título:Phylogeny of the families Zoothamniidae and Epistylididae (Protozoa: Ciliophora: Peritrichia) based on analyses of three rRNA-coding regions.
[So] Source:Mol Phylogenet Evol;118:99-107, 2018 Jan.
[Is] ISSN:1095-9513
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:Peritrichs are a major group of ciliates with worldwide distribution, and they play important roles in many habitats. Intrafamilial phylogeny of some peritrichs was investigated using information from three genes, which provided more robust interpretations than single-gene analyses. Sixty-seven new sequences including SSU rDNA, ITS1-5.8S-ITS2 and LSU rDNA were aligned with available sequences in GenBank to infer phylogenetic relationships within the families Zoothamniidae and Epistylididae. Results reveal the following relationships: (1) Epistylididae is polyphyletic, consisting of two clades that nest within the Zoothamniidae as part of the crown clade of peritrichs (order Vorticellida) and a third one that is part of the basal clade of peritrichs (order Opercularida); (2) Epistylis elongata falls within one of the clades of Zoothamnium rather than with congeners; (3) Zoothamnium is probably paraphyletic, consisting of three divergent clades, with the genera Myoschiston and Zoothamnopsis intermingled with species of Zoothamnium. The following evolutionary hypotheses can be inferred from these results: (1) the contractile stalk of Zoothamnium is plesiomorphic. (2) Myoschiston, Zoothamnopsis and clade II of Epistylididae are derived from the Zoothamnium morphotype by partial or incomplete development of the spasmoneme that forms the contractile center of the stalk around which the rigid cortex is secreted. (3) Clade I of the Epistylididae, which are primarily colonial forms that appear never to have evolved a spasmoneme of any sort, may represent the ancestral morphotype of peritrichs.
[Mh] Termos MeSH primário: Cilióforos/classificação
Fases de Leitura Aberta/genética
Filogenia
RNA Ribossômico/genética
[Mh] Termos MeSH secundário: Sequência de Bases
China
Cilióforos/genética
DNA de Protozoário/genética
DNA Ribossômico/genética
Geografia
Funções Verossimilhança
Subunidades Ribossômicas Menores/genética
Especificidade da Espécie
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (DNA, Protozoan); 0 (DNA, Ribosomal); 0 (RNA, Ribosomal)
[Em] Mês de entrada:1803
[Cu] Atualização por classe:180302
[Lr] Data última revisão:
180302
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:171002
[St] Status:MEDLINE


  9 / 36397 MEDLINE  
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[PMID]:28919503
[Au] Autor:Caviedes-Solis IW; Nieto-Montes de Oca A
[Ad] Endereço:Museo de Zoología, Facultad de Ciencias, Universidad Nacional Autónoma de México, México Distrito Federal 04510, Mexico. Electronic address: itzuecs@uw.edu.
[Ti] Título:A multilocus phylogeny of the genus Sarcohyla (Anura: Hylidae), and an investigation of species boundaries using statistical species delimitation.
[So] Source:Mol Phylogenet Evol;118:184-193, 2018 Jan.
[Is] ISSN:1095-9513
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:The genus Sarcohyla is composed by 24 species endemic to México. Despite the large number of phylogenetic studies focusing on the family Hylidae, the relationships among the species of Sarcohyla are still poorly known, and the scarce numbers of specimens and tissue samples available for some of the species has hampered an appropriate phylogenetic analysis. We present the most comprehensive molecular phylogenetic study of Sarcohyla to date. We included 17 species of the genus Sarcohyla using data from two mitochondrial (ND1 and 12S) and three nuclear genes (Rag-1, Rhod, and POMc). We performed phylogenetic analyses using Bayesian inference, and the absence of conflicts with strong support between the separate gene trees indicates that incomplete lineage sorting and/or introgressive hybridization are negligible. A coalescent-based species-tree analysis of the four independent loci (three nuclear genes+mtDNA) mostly supports the same species-level relationships as the analysis of the concatenated data. By including new samples from additional species and localities, we find that: (1) the widely distributed species S. bistincta is a complex of at least three species, (2) another undescribed species exists in the group, (3) the species S. ephemera is not valid and it corresponds to a junior synonym of S. calthula. In addition, we conducted marginal likelihood estimation and used Bayes factors to test alternative species delimitation models for S. bistincta, the most widespread nominal species in the group. Our findings support three independent lineages of S. bistincta group, which are paraphyletic with respect to S. pentheter and S. calthula.
[Mh] Termos MeSH primário: Anuros/classificação
Loci Gênicos
Filogenia
Estatística como Assunto
[Mh] Termos MeSH secundário: Animais
Anuros/genética
Teorema de Bayes
DNA Mitocondrial/genética
Geografia
Funções Verossimilhança
México
Modelos Biológicos
Especificidade da Espécie
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (DNA, Mitochondrial)
[Em] Mês de entrada:1803
[Cu] Atualização por classe:180302
[Lr] Data última revisão:
180302
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170919
[St] Status:MEDLINE


  10 / 36397 MEDLINE  
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[PMID]:29381755
[Au] Autor:Caetano JM; Tessarolo G; de Oliveira G; Souza KDSE; Diniz-Filho JAF; Nabout JC
[Ad] Endereço:Campus de Ciências Exatas e Tecnológicas (CCET), Universidade Estadual de Goiás, Anápolis, Goiás, Brazil.
[Ti] Título:Geographical patterns in climate and agricultural technology drive soybean productivity in Brazil.
[So] Source:PLoS One;13(1):e0191273, 2018.
[Is] ISSN:1932-6203
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:The impacts of global climate change have been a worldwide concern for several research areas, including those dealing with resources essential to human well being, such as agriculture, which directly impact economic activities and food security. Here we evaluate the relative effect of climate (as indicated by the Ecological Niche Model-ENM) and agricultural technology on actual soybean productivity in Brazilian municipalities and estimate the future geographic distribution of soybeans using a novel statistical approach allowing the evaluation of partial coefficients in a non-stationary (Geographically Weighted Regression; GWR) model. We found that technology was more important than climate in explaining soybean productivity in Brazil. However, some municipalities are more dependent on environmental suitability (mainly in Southern Brazil). The future environmental suitability for soybean cultivation tends to decrease by up 50% in the central region of Brazil. Meanwhile, southern-most Brazil will have more favourable conditions, with an increase of ca. 25% in environmental suitability. Considering that opening new areas for cultivation can degrade environmental quality, we suggest that, in the face of climate change impacts on soybean cultivation, the Brazilian government and producers must invest in breeding programmes and more general ecosystem-based strategies for adaptation to climate change, including the development of varieties tolerant to climate stress, and strategies to increase productivity and reduce costs (social and environmental).
[Mh] Termos MeSH primário: Feijão de Soja/crescimento & desenvolvimento
[Mh] Termos MeSH secundário: Agricultura
Brasil
Mudança Climática
Produtos Agrícolas/crescimento & desenvolvimento
Ecossistema
Meio Ambiente
Abastecimento de Alimentos
Geografia
Seres Humanos
Modelos Biológicos
Modelos Teóricos
Tecnologia
[Pt] Tipo de publicação:JOURNAL ARTICLE; RESEARCH SUPPORT, NON-U.S. GOV'T
[Em] Mês de entrada:1802
[Cu] Atualização por classe:180226
[Lr] Data última revisão:
180226
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:180131
[St] Status:MEDLINE
[do] DOI:10.1371/journal.pone.0191273



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