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[PMID]:28796803
[Au] Autor:Richards EJ; Martin CH
[Ad] Endereço:Biology Department, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, United States of America.
[Ti] Título:Adaptive introgression from distant Caribbean islands contributed to the diversification of a microendemic adaptive radiation of trophic specialist pupfishes.
[So] Source:PLoS Genet;13(8):e1006919, 2017 Aug.
[Is] ISSN:1553-7404
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:Rapid diversification often involves complex histories of gene flow that leave variable and conflicting signatures of evolutionary relatedness across the genome. Identifying the extent and source of variation in these evolutionary relationships can provide insight into the evolutionary mechanisms involved in rapid radiations. Here we compare the discordant evolutionary relationships associated with species phenotypes across 42 whole genomes from a sympatric adaptive radiation of Cyprinodon pupfishes endemic to San Salvador Island, Bahamas and several outgroup pupfish species in order to understand the rarity of these trophic specialists within the larger radiation of Cyprinodon. 82% of the genome depicts close evolutionary relationships among the San Salvador Island species reflecting their geographic proximity, but the vast majority of variants fixed between specialist species lie in regions with discordant topologies. Top candidate adaptive introgression regions include signatures of selective sweeps and adaptive introgression of genetic variation from a single population in the northwestern Bahamas into each of the specialist species. Hard selective sweeps of genetic variation on San Salvador Island contributed 5 times more to speciation of trophic specialists than adaptive introgression of Caribbean genetic variation; however, four of the 11 introgressed regions came from a single distant island and were associated with the primary axis of oral jaw divergence within the radiation. For example, standing variation in a proto-oncogene (ski) known to have effects on jaw size introgressed into one San Salvador Island specialist from an island 300 km away approximately 10 kya. The complex emerging picture of the origins of adaptive radiation on San Salvador Island indicates that multiple sources of genetic variation contributed to the adaptive phenotypes of novel trophic specialists on the island. Our findings suggest that a suite of factors, including rare adaptive introgression, may be necessary for adaptive radiation in addition to ecological opportunity.
[Mh] Termos MeSH primário: Adaptação Fisiológica/genética
Especiação Genética
Peixes Listrados/genética
Filogenia
[Mh] Termos MeSH secundário: Animais
Evolução Biológica
Ecossistema
Fluxo Gênico
Variação Genética
Genoma
Simpatria
Índias Ocidentais
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Em] Mês de entrada:1708
[Cu] Atualização por classe:170827
[Lr] Data última revisão:
170827
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170811
[St] Status:MEDLINE
[do] DOI:10.1371/journal.pgen.1006919


  2 / 570 MEDLINE  
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[PMID]:28792510
[Au] Autor:Arratia G; Vila I; Lam N; Guerrero CJ; Quezada-Romegialli C
[Ad] Endereço:Biodiversity Institute, University of Kansas, Lawrence, Kansas, United States of America.
[Ti] Título:Morphological and taxonomic descriptions of a new genus and species of killifishes (Teleostei: Cyprinodontiformes) from the high Andes of northern Chile.
[So] Source:PLoS One;12(8):e0181989, 2017.
[Is] ISSN:1932-6203
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:A new genus and species, Pseudorestias lirimensis, is described from the southern part of the Chilean Altiplano. While sharing several characters that clearly align the new species with Orestias, this new fish is characterized by numerous autapomorphies: the Meckel cartilage is a continuous cartilage that broadly expands posteriorly (in large specimens, it keeps its anterior part and is resorbed posteriorly), the basibranchials are fused into one long element, the second pharyngobranchial is not displaced dorsally over pharyngobranchial tooth plate 3+4, but they are aligned, the anterior and posterior ceratohyals are closely articulated keeping a scarce amount of cartilage between both bones and ventral to them, ossified middle and distal dorsal radials are present in females as well as ossified middle and distal anal radials. Pseudorestias lirimensis presents strong sexual dimorphism associated to size. Females are almost twice as large and long than males, neuromast lines are absent in males, a mesethmoid is present in males, squamation on head is reduced in males, and ossified middle and distal radial of dorsal fin are cartilaginous in males. Pseudorestias and Orestias are suggested as the sole members of the tribe Orestiini. A list of characters diagnosing the tribe is provided. The presence of the new genus is interpreted as a possible result of the ecosystem isolation where the fish is living from surrounding basins-as early as possibly from the Miocene-Pliocene times-and its physical and chemical characteristics. Small populations, living conditions, small habitat, and reduced distribution make this species a strong candidate to be considered critically endangered, a situation already established for all other Chilean species living in the Altiplano. There is high probability it will become extinct due to water demands and climate change in the region.
[Mh] Termos MeSH primário: Peixes Listrados/anatomia & histologia
Peixes Listrados/genética
[Mh] Termos MeSH secundário: Animais
Chile
Cromossomos
Classificação
DNA Mitocondrial
Ecossistema
Espécies em Perigo de Extinção
Feminino
Lagos
Masculino
Isolamento Reprodutivo
Caracteres Sexuais
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (DNA, Mitochondrial)
[Em] Mês de entrada:1710
[Cu] Atualização por classe:171006
[Lr] Data última revisão:
171006
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170810
[St] Status:MEDLINE
[do] DOI:10.1371/journal.pone.0181989


  3 / 570 MEDLINE  
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[PMID]:28534072
[Au] Autor:Flores-Galván M; Arellano-García E; Ruiz-Campos G; Daesslé LW
[Ad] Endereço:Instituto de Investigaciones Oceanológicas, Universidad Autónoma de Baja California, Carretera Transpeninsular Tijuana-Ensenada No. 3917, Fraccionamiento Playitas, CP 22860, Ensenada, Baja California, Mexico.
[Ti] Título:Genotoxic Assessment of Some Inorganic Compounds in Desert Pupfish (Cyprinodon macularius) in the Evaporation Pond from a Geothermal Plant.
[So] Source:Bull Environ Contam Toxicol;99(2):218-223, 2017 Aug.
[Is] ISSN:1432-0800
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:The frequency of micro nucleated erythrocytes in peripheral blood of the desert pupfish (Cyprinodon macularius) from a geothermal effluent pond is determined and compared to organisms kept in an aquarium. The frequency of micronucleated erythrocytes found in pupfish from the geothermal pond is 2.75 (±2.09) and only 0.44 (±0.52) in captivity organisms. Dissolved As in the ponds doubles the 340 µg L US-EPA acute quality criteria for aquatic life and Hg equals the 1.77 µg L chronic criteria. The organisms with high MNE also have significantly high Se, As and Hg concentrations in muscle and liver. Compared to international maximum allowable limits for fish consumption, there is 81× enrichment for Se, 6× for As and 5× for Hg. Although Se is not significantly enriched in water, it is likely that its bioaccumulation occurs via feeding of detritus. The desert pupfish has a significant resistance to extreme metal accumulations and to recover under unpolluted conditions.
[Mh] Termos MeSH primário: Testes de Mutagenicidade
Poluentes Químicos da Água/toxicidade
[Mh] Termos MeSH secundário: Animais
Resíduos Industriais
Peixes Listrados
Mercúrio/análise
Metais/toxicidade
Tanques
Selênio
Eliminação de Resíduos Líquidos
Poluentes Químicos da Água/análise
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Industrial Waste); 0 (Metals); 0 (Water Pollutants, Chemical); FXS1BY2PGL (Mercury); H6241UJ22B (Selenium)
[Em] Mês de entrada:1708
[Cu] Atualização por classe:170822
[Lr] Data última revisão:
170822
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170524
[St] Status:MEDLINE
[do] DOI:10.1007/s00128-017-2114-6


  4 / 570 MEDLINE  
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[PMID]:28411468
[Au] Autor:Puthumana J; Kim BM; Jeong CB; Kim DH; Kang HM; Jung JH; Kim IC; Hwang UK; Lee JS
[Ad] Endereço:Department of Biological Science, College of Science, Sungkyunkwan University, Suwon 16419, South Korea.
[Ti] Título:Nine co-localized cytochrome P450 genes of the CYP2N, CYP2AD, and CYP2P gene families in the mangrove killifish Kryptolebias marmoratus genome: Identification and expression in response to B[α]P, BPA, OP, and NP.
[So] Source:Aquat Toxicol;187:132-140, 2017 Jun.
[Is] ISSN:1879-1514
[Cp] País de publicação:Netherlands
[La] Idioma:eng
[Ab] Resumo:The CYP2 genes are the largest and most diverse cytochrome P450 (CYP) subfamily in vertebrates. We have identified nine co-localized CYP2 genes (∼55kb) in a new cluster in the genome of the highly resilient ecotoxicological fish model Kryptolebias marmoratus. Molecular characterization, temporal and tissue-specific expression pattern, and response to xenobiotics of these genes were examined. The CYP2 gene clusters were characterized and designated CYP2N22-23, CYP2AD12, and CYP2P16-20. Gene synteny analysis confirmed that the cluster in K. marmoratus is similar to that found in other teleost fishes, including zebrafish. A gene duplication event with diverged catalytic function was observed in CYP2AD12. Moreover, a high level of divergence in expression was observed among the co-localized genes. Phylogeny of the cluster suggested an orthologous relationship with similar genes in zebrafish and Japanese medaka. Gene expression analysis showed that CYP2P19 and CYP2N20 were consecutively expressed throughout embryonic development, whereas CYP2P18 was expressed in all adult tissues, suggesting that members of each CYP2 gene family have different physiological roles even though they are located in the same cluster. Among endocrine-disrupting chemicals (EDCs), benzo[α]pyrene (B[α]P) induced expression of CYP2N23, bisphenol A (BPA) induced CYP2P18 and CYP2P19, and 4-octylphenol (OP) induced CYP2AD12, but there was no significant response to 4-nonylphenol (NP), implying differential catalytic roles of the enzyme. In this paper, we identify and characterize a CYP2 gene cluster in the mangrove killifish K. marmoratus with differing catalytic roles toward EDCs. Our findings provide insights on the roles of nine co-localized CYP2 genes and their catalytic functions for better understanding of chemical-biological interactions in fish.
[Mh] Termos MeSH primário: Sistema Enzimático do Citocromo P-450/genética
Disruptores Endócrinos/toxicidade
Expressão Gênica/efeitos dos fármacos
Peixes Listrados/genética
Poluentes Químicos da Água/toxicidade
[Mh] Termos MeSH secundário: Animais
Compostos Benzidrílicos/toxicidade
Estudo de Associação Genômica Ampla
Peixes Listrados/metabolismo
Família Multigênica
Fenóis/toxicidade
Filogenia
Especificidade da Espécie
Sintenia
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Benzhydryl Compounds); 0 (Endocrine Disruptors); 0 (Phenols); 0 (Water Pollutants, Chemical); 7DF2B8LH3P (4-octylphenol); 9035-51-2 (Cytochrome P-450 Enzyme System); I03GBV4WEL (4-nonylphenol); MLT3645I99 (bisphenol A)
[Em] Mês de entrada:1709
[Cu] Atualização por classe:170907
[Lr] Data última revisão:
170907
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170416
[St] Status:MEDLINE


  5 / 570 MEDLINE  
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[PMID]:28245250
[Au] Autor:Guerrero-Jiménez CJ; Peña F; Morales P; Méndez M; Sallaberry M; Vila I; Poulin E
[Ad] Endereço:Departamento de Ciencias Ecológicas, Facultad de Ciencias, Universidad de Chile, Ñuñoa, Santiago, Región Metropolitana, Chile.
[Ti] Título:Pattern of genetic differentiation of an incipient speciation process: The case of the high Andean killifish Orestias.
[So] Source:PLoS One;12(2):e0170380, 2017.
[Is] ISSN:1932-6203
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:During the Pleistocene and Holocene, the southwest Andean Altiplano (17°-22°S) was affected by repeated fluctuations in water levels, high volcanic activity and major tectonic movements. In the early Holocene the humid Tauca phase shifted to the arid conditions that have lasted until the present, producing endorheic rivers, lakes, lagoons and wetlands. The endemic fish Orestias (Cyprinodontidae) represents a good model to observe the genetic differentiation that characterizes an incipient speciation process in allopatry since the morphospecies described inhabit a restricted geographic area, with present habitat fragmentation. The genetic diversity and population structure of four endemic morphospecies of Orestias (Cyprinodontidae) found in the Lauca National Park (LNP) analyzed with mitochondrial markers (Control Region) and eight microsatellites, revealed the existence of genetic groups that matches the fragmentation of these systems. High values of genetic and phylogeographic differentiation indices were observed between Chungará Lake and Piacota lagoon. The group composed of the Lauca River, Copapujo and Chuviri wetlands sampling sites showed a clear signal of expansion, with a star-like haplotype network. Levels of genetic differentiation were lower than in Chungará and Piacota, suggesting that these localities would have differentiated after the bottlenecks linked to the collapse of Parinacota volcano. The Parinacota sample showed a population signal that differed from the other localities revealing greater genetic diversity and a disperse network, presenting haplotypes shared with other LNP localities. A mixing pattern of the different genetic groups was evident using the microsatellite markers. The chronology of the vicariance events in LNP may indicate that the partition process of the Orestias populations was gradual. Considering this, and in view of the genetic results, we may conclude that the morphospecies from LNP are populations in ongoing differentiation process.
[Mh] Termos MeSH primário: Especiação Genética
Genética Populacional
Peixes Listrados/genética
[Mh] Termos MeSH secundário: Análise de Variância
Animais
Chile
DNA Mitocondrial/genética
Ecossistema
Deriva Genética
Variação Genética
Geografia
Haplótipos
Repetições de Microssatélites
Filogenia
Filogeografia
Rios
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (DNA, Mitochondrial)
[Em] Mês de entrada:1709
[Cu] Atualização por classe:170906
[Lr] Data última revisão:
170906
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170301
[St] Status:MEDLINE
[do] DOI:10.1371/journal.pone.0170380


  6 / 570 MEDLINE  
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[PMID]:28193224
[Au] Autor:Ripa R; Dolfi L; Terrigno M; Pandolfini L; Savino A; Arcucci V; Groth M; Terzibasi Tozzini E; Baumgart M; Cellerino A
[Ad] Endereço:Scuola Normale Superiore, Laboratory of Biology (Bio@SNS), c/o Istituto di Biofisica del CNR, via 17 Moruzzi 1, 56124, Pisa, Italy.
[Ti] Título:MicroRNA miR-29 controls a compensatory response to limit neuronal iron accumulation during adult life and aging.
[So] Source:BMC Biol;15(1):9, 2017 Feb 13.
[Is] ISSN:1741-7007
[Cp] País de publicação:England
[La] Idioma:eng
[Ab] Resumo:BACKGROUND: A widespread modulation of gene expression occurs in the aging brain, but little is known as to the upstream drivers of these changes. MicroRNAs emerged as fine regulators of gene expression in many biological contexts and they are modulated by age. MicroRNAs may therefore be part of the upstream drivers of the global gene expression modulation correlated with aging and aging-related phenotypes. RESULTS: Here, we show that microRNA-29 (miR-29) is induced during aging in short-lived turquoise killifish brain and genetic antagonism of its function induces a gene-expression signature typical of aging. Mechanicistically, we identified Ireb2 (a master gene for intracellular iron delivery that encodes for IRP2 protein), as a novel miR-29 target. MiR-29 is induced by iron loading and, in turn, it reduces IRP2 expression in vivo, therefore limiting intracellular iron delivery in neurons. Genetically modified fish with neuro-specific miR-29 deficiency exhibit increased levels of IRP2 and transferrin receptor, increased iron content, and oxidative stress. CONCLUSIONS: Our results demonstrate that age-dependent miR-29 upregulation is an adaptive mechanism that counteracts the expression of some aging-related phenotypes and its anti-aging activity is primarily exerted by regulating intracellular iron homeostasis limiting excessive iron-exposure in neurons.
[Mh] Termos MeSH primário: Envelhecimento/genética
Ferro/metabolismo
Peixes Listrados/crescimento & desenvolvimento
Peixes Listrados/genética
MicroRNAs/metabolismo
Neurônios/metabolismo
[Mh] Termos MeSH secundário: Animais
Sequência de Bases
Encéfalo/metabolismo
Homeostase/genética
Sobrecarga de Ferro/genética
Sobrecarga de Ferro/metabolismo
Proteína 2 Reguladora do Ferro/genética
Proteína 2 Reguladora do Ferro/metabolismo
MicroRNAs/genética
Modelos Biológicos
RNA Mensageiro/genética
RNA Mensageiro/metabolismo
Regulação para Cima/genética
Peixe-Zebra/genética
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (MicroRNAs); 0 (RNA, Messenger); E1UOL152H7 (Iron); EC 4.2.1.3 (Iron Regulatory Protein 2)
[Em] Mês de entrada:1710
[Cu] Atualização por classe:171016
[Lr] Data última revisão:
171016
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170215
[St] Status:MEDLINE
[do] DOI:10.1186/s12915-017-0354-x


  7 / 570 MEDLINE  
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[PMID]:28133827
[Au] Autor:Black AN; Seears HA; Hollenbeck CM; Samollow PB
[Ad] Endereço:Hatfield Marine Science Center, Coastal Oregon Marine Experiment Station, Oregon State University, 2030 SE Marine Science Drive, Newport, OR, 97365, USA.
[Ti] Título:Rapid genetic and morphologic divergence between captive and wild populations of the endangered Leon Springs pupfish, Cyprinodon bovinus.
[So] Source:Mol Ecol;26(8):2237-2256, 2017 Apr.
[Is] ISSN:1365-294X
[Cp] País de publicação:England
[La] Idioma:eng
[Ab] Resumo:The Leon Springs pupfish (Cyprinodon bovinus) is an endangered species currently restricted to a single desert spring and a separate captive habitat in southwestern North America. Following establishment of the captive population from wild stock in 1976, the wild population has undergone natural population size fluctuations, intentional culling to purge genetic contamination from an invasive congener (Cyprinodon variegatus) and augmentation/replacement of wild fish from the captive stock. A severe population decline following the most recent introduction of captive fish prompted us to examine whether the captive and wild populations have differentiated during the short time they have been isolated from one another. If so, the development of divergent genetic and/or morphologic traits between populations could contribute to a diminished ability of fish from one location to thrive in the other. Examination of genomewide single nucleotide polymorphisms and morphologic variation revealed no evidence of residual C. variegatus characteristics in contemporary C. bovinus samples. However, significant genetic and morphologic differentiation was detected between the wild and captive populations, some of which might reflect local adaptation. Our results indicate that genetic and physical characteristics can diverge rapidly between isolated subdivisions of managed populations, potentially compromising the value of captive stock for future supplementation efforts. In the case of C. bovinus, our findings underscore the need to periodically inoculate the captive population with wild genetic material to help mitigate genetic, and potentially morphologic, divergence between them and also highlight the utility of parallel morphologic and genomic evaluation to inform conservation management planning.
[Mh] Termos MeSH primário: Espécies em Perigo de Extinção
Genética Populacional
Peixes Listrados/genética
Polimorfismo de Nucleotídeo Único
[Mh] Termos MeSH secundário: Animais
Conservação dos Recursos Naturais
Biblioteca Gênica
Peixes Listrados/anatomia & histologia
New Mexico
Dinâmica Populacional
Análise de Sequência de DNA
Texas
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Em] Mês de entrada:1705
[Cu] Atualização por classe:170503
[Lr] Data última revisão:
170503
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170131
[St] Status:MEDLINE
[do] DOI:10.1111/mec.14028


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[PMID]:28028132
[Au] Autor:McGirr JA; Martin CH
[Ad] Endereço:Department of Biology, University of North Carolina at Chapel Hill, Chapel Hill, NC.
[Ti] Título:Novel Candidate Genes Underlying Extreme Trophic Specialization in Caribbean Pupfishes.
[So] Source:Mol Biol Evol;34(4):873-888, 2017 Apr 01.
[Is] ISSN:1537-1719
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:The genetic changes responsible for evolutionary transitions from generalist to specialist phenotypes are poorly understood. Here we examine the genetic basis of craniofacial traits enabling novel trophic specialization in a sympatric radiation of Cyprinodon pupfishes endemic to San Salvador Island, Bahamas. This recent radiation consists of a generalist species and two novel specialists: a small-jawed "snail-eater" and a large-jawed "scale-eater." We genotyped 12 million single nucleotide polymorphisms (SNPs) by whole-genome resequencing of 37 individuals of all three species from nine populations and integrated genome-wide divergence scans with association mapping to identify divergent regions containing putatively causal SNPs affecting jaw size-the most rapidly diversifying trait in this radiation. A mere 22 fixed variants accompanied extreme ecological divergence between generalist and scale-eater species. We identified 31 regions (20 kb) containing variants fixed between specialists that were significantly associated with variation in jaw size which contained 11 genes annotated for skeletal system effects and 18 novel candidate genes never previously associated with craniofacial phenotypes. Six of these 31 regions showed robust signs of hard selective sweeps after accounting for demographic history. Our data are consistent with predictions based on quantitative genetic models of adaptation, suggesting that the effect sizes of regions influencing jaw phenotypes are positively correlated with distance between fitness peaks on a complex adaptive landscape.
[Mh] Termos MeSH primário: Especiação Genética
Arcada Osseodentária/fisiologia
Peixes Listrados/genética
[Mh] Termos MeSH secundário: Adaptação Fisiológica/genética
Animais
Evolução Biológica
Região do Caribe
Sequência Conservada/genética
Ecossistema
Evolução Molecular
Estudos de Associação Genética/métodos
Estudos de Associação Genética/veterinária
Aptidão Genética/genética
Genética Populacional/métodos
Genoma/genética
Genótipo
Arcada Osseodentária/anatomia & histologia
Peixes Listrados/anatomia & histologia
Peixes Listrados/metabolismo
Mandíbula/anatomia & histologia
Mandíbula/fisiologia
Fenótipo
Polimorfismo de Nucleotídeo Único/genética
Relação Estrutura-Atividade
Simpatria/genética
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Em] Mês de entrada:1707
[Cu] Atualização por classe:170724
[Lr] Data última revisão:
170724
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:161229
[St] Status:MEDLINE
[do] DOI:10.1093/molbev/msw286


  9 / 570 MEDLINE  
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[PMID]:27785814
[Au] Autor:Lozano-Vilano ML; De La Maza-Benignos M
[Ad] Endereço:Laboratorio de Ictiología, Facultad de Ciencias Biológicas, Universidad Autónoma de Nuevo León, México. Ap. Postal 425 San Nicolás de los Garza, Nuevo León, 66450, México.
[Ti] Título:Diversity and status of Mexican killifishes.
[So] Source:J Fish Biol;90(1):3-38, 2017 Jan.
[Is] ISSN:1095-8649
[Cp] País de publicação:England
[La] Idioma:eng
[Ab] Resumo:The name killifish refers to the oviparous secondary freshwater fishes in the order Cyprinodontiformes. Killifishes are abundant in Mexico and are represented by four extant families, Rivulidae, Profundulidae, Fundulidae and Cyprinodontidae, comprising > 50 species in a wide variety of habitats. This paper reviews the current classification of the killifishes of Mexico, as well as aspects of their distribution, biology, ecology and current population conservation status.
[Mh] Termos MeSH primário: Biodiversidade
Peixes Listrados/classificação
Peixes Listrados/fisiologia
[Mh] Termos MeSH secundário: Distribuição Animal
Animais
Ecologia
México
Filogenia
Densidade Demográfica
Especificidade da Espécie
[Pt] Tipo de publicação:JOURNAL ARTICLE; REVIEW
[Em] Mês de entrada:1706
[Cu] Atualização por classe:170817
[Lr] Data última revisão:
170817
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:161028
[St] Status:MEDLINE
[do] DOI:10.1111/jfb.13186


  10 / 570 MEDLINE  
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[PMID]:27785716
[Au] Autor:Park CB; Kim YJ; Soyano K
[Ad] Endereço:Environmental Safety Group, Korea Institute of Science and Technology Europe, 66123, Saarbruecken, Germany. cb.park@kist-europe.de.
[Ti] Título:Effects of increasing temperature due to aquatic climate change on the self-fertility and the sexual development of the hermaphrodite fish, Kryptolebias marmoratus.
[So] Source:Environ Sci Pollut Res Int;24(2):1484-1494, 2017 Jan.
[Is] ISSN:1614-7499
[Cp] País de publicação:Germany
[La] Idioma:eng
[Ab] Resumo:In order to assess the effects of increasing temperature on the reproductive performance of fish, different thermal conditions (i.e., 25.0, 26.5, 27.5, 28.5, 30.0 °C) were used in this study and the self-fertilizing hermaphrodite fish, Kryptolebias marmoratus, was exposed to these different thermal conditions. During an exposure period of 30 to 150 days, the gonadosomatic index (GSI), gonadal development, the levels of plasma 17ß-estradial (E2) and testosterone (T), hepatic vitellogenin (VTG) mRNA abundance, and the number of self-fertilized eggs were analyzed. This study confirmed that a high water temperature above 27.5 °C led to the suppression of self-fertility of hermaphroditic fish from 30 days after exposure. The oocyte quality and maturation would be affected by the disruption of hepatic VTG synthesis at a high water temperature of 30 °C, which resulted in the reduced the self-fertility in K. marmoratus. Consequently, this study suggests that elevated water temperature due to aquatic climate change prior to sexual maturation and the onset of spawning can lead to the reproductive dysfunction of hermaphroditic K. marmoratus.
[Mh] Termos MeSH primário: Mudança Climática
Fertilidade
Temperatura Alta
Peixes Listrados/fisiologia
[Mh] Termos MeSH secundário: Animais
Feminino
Gônadas/crescimento & desenvolvimento
Masculino
Reprodução
Autofertilização
Desenvolvimento Sexual
Maturidade Sexual
Vitelogeninas/sangue
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Vitellogenins)
[Em] Mês de entrada:1704
[Cu] Atualização por classe:171104
[Lr] Data última revisão:
171104
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:161028
[St] Status:MEDLINE
[do] DOI:10.1007/s11356-016-7878-4



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