|
|
|
| Registros recuperados: 404 | |
|
|
| Ramya,Shanivarsanthe Leelesh; Venkatesan,Thiruvengadam; Srinivasa Murthy,Kottilingam; Jalali,Sushil Kumar; Verghese,Abraham. |
| Abstract Diamondback moth (DBM), Plutella xylostella (Linnaeus), is a notorious pest of brassica crops worldwide and is resistant to all groups of insecticides. The insect system harbors diverse groups of microbiota, which in turn helps in enzymatic degradation of xenobiotic-like insecticides. The present study aimed to determine the diversity of gut microflora in DBM, quantify esterase activity and elucidate their possible role in degradation of indoxacarb. We screened 11 geographic populations of DBM in India and analyzed them for bacterial diversity. The culturable gut bacterial flora underwent molecular characterization with 16S rRNA. We obtained 25 bacterial isolates from larvae (n = 13) and adults (n = 12) of DBM. In larval gut isolates,... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Plutella xylostella; Bacteria; 16S rRNA; Phylogeny; Carboxylesterase; Indoxacarb. |
| Ano: 2016 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822016000200327 |
| |
|
|
| MADRUGA, C. R.; ARAÚJO, F. R. de; SOARES, C. O.; MELO, E. S. de P.; ALMEIDA, D. A.; ALMEIDA JÚNIOR, N. F. de; XAVIER, M. A. S.; OSÓRIO, A. L. A.; GÓES-CAVALCANTE, G.; RAMOS, C. A. do N.. |
| bitstream/item/104658/1/Diagnostico-molecular-e-analise.pdf |
| Tipo: Comunicado Técnico (INFOTECA-E) |
Palavras-chave: Reação da polimerase em cadeia; Brasil; Diagnosis.; Diagnostico; Filogenia; Trypanosoma Vivax.; Brazil; Phylogeny; Polymerase chain reaction.. |
| Ano: 2003 |
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/325753 |
| |
|
| |
|
|
| Li, Zhun; Mertens, Kenneth; Nézan, Elisabeth; Chomérat, Nicolas; Bilien, Gwenael; Iwataki, Mitsunori; Shin, Hyeon Ho. |
| Investigation of phytoplankton from East China Sea of the Pacific Ocean, offshore Réunion Island of the Indian Ocean, and the French Atlantic coast revealed a species of poorly known armored fusiform dinoflagellate. To clarify this species, morphology and phylogeny based on mitochondrial and nuclear protein gene sequence (Cox1, Cob and Hsp90) concatenated with the SSU, ITS region and LSU rDNA sequences were analysed. Epifluorescence and scanning electron microscopy observations revealed that the nucleus of the specimen was elongated, sausage-shaped and located equatorially on the left lateral side of the cell, and that the plate formula is Po, 3′, 1a, 6″, 6C, 8S, 5‴, 1p, 2′‴. These morphological features indicate that the species can be assigned to... |
| Tipo: Text |
Palavras-chave: Fusiform dinoflagellate; Centrodinium; Alexandrium; Morphology; Phylogeny. |
| Ano: 2019 |
URL: https://archimer.ifremer.fr/doc/00483/59496/62364.pdf |
| |
|
|
| Bárcenas Argüello, María Luisa. |
| Cephalocereus es un género monofilético, cuya distribución es alopátrica y está restringida a la Barranca de Metztitlán (C. senilis), al Valle de Tehuacán-Cuicatlán (C. columna-trajani) y a la cuenca del río Tehuantepec (subgénero Neodawsonia, C. apicicephalium, C. nizandensis, C. totolapensis). Se desconoce qué factores condicionan este patrón de distribución endémico. El objetivo de este trabajo fue el proponer una hipótesis que explique el endemismo de sus especies, a partir de relaciones específicas entre la fisiología de los oxalatos de calcio y las propiedades de las rocas y de los suelos en los que habitan. En cada población se tomaron muestras del material parental (roca) del suelo, se removió tejido vegetal y se recolectaron semillas; estas... |
|
Palavras-chave: Endemismo; Material Parental; Oxalato de calcio; Germinación; Filogenia; Endemism; Parent material; Calcium oxalate; Germination; Phylogeny; Doctorado; Botánica. |
| Ano: 2011 |
URL: http://hdl.handle.net/10521/458 |
| |
|
|
| Bárcenas Argüello, María Luisa. |
| Cephalocereus es un género monofilético, cuya distribución es alopátrica y está restringida a la Barranca de Metztitlán (C. senilis), al Valle de Tehuacán-Cuicatlán (C. columna-trajani) y a la cuenca del río Tehuantepec (subgénero Neodawsonia, C. apicicephalium, C. nizandensis, C. totolapensis). Se desconoce qué factores condicionan este patrón de distribución endémico. El objetivo de este trabajo fue el proponer una hipótesis que explique el endemismo de sus especies, a partir de relaciones específicas entre la fisiología de los oxalatos de calcio y las propiedades de las rocas y de los suelos en los que habitan. En cada población se tomaron muestras del material parental (roca) del suelo, se removió tejido vegetal y se recolectaron semillas; estas... |
|
Palavras-chave: Endemismo; Material Parental; Oxalato de calcio; Germinación; Filogenia; Endemism; Parent material; Calcium oxalate; Germination; Phylogeny; Doctorado; Botánica. |
| Ano: 2011 |
URL: http://hdl.handle.net/10521/458 |
| |
|
| |
|
|
| Tello Salgado, Isaac. |
| Actualmente se estudia la capacidad funcional a nivel molecular de los hongos basidiomicetos como modificadores de la respuesta biológica, dada la efectividad de los productos examinados de activar al sistema inmunológico, sin embargo, el origen geográfico de estos recursos, principalmente son asiáticos y europeos. Ganoderma es reconocido por su eficiente actividad en el tratamiento de varias enfermedades, principalmente las anticancerígenas y antitumorales, crece de manera silvestre en el área central de México, una de las más importantes, debido a la convergencia de las regiones Neártica y Neotropical, lo cual da como resultado un amplia diversidad de recursos genéticos. En la presente investigación se aislaron 66 cepas del género Ganoderma producto de... |
|
Palavras-chave: Caracterización; Cultivo; Filogenia; Ganoderma; Recurso Genético; Characterization; Cultivation; Phylogeny; Genetic resource; Doctorado; EDAR; Estrategias para el Desarrollo Agrícola Regional. |
| Ano: 2010 |
URL: http://hdl.handle.net/10521/372 |
| |
|
|
| Taylor, John D.; Glover, Emily A.; Williams, Suzanne T.. |
| Although species of the chemosymbiotic bivalve family Lucinidae are often diverse and abundant in shallow water habitats such as seagrass beds, new discoveries show that the family is equally speciose at slope and bathyal depths, particularly in the tropics, with records down to 2500m. New molecular analyses including species from habitats down to 2000m indicate that these cluster in four of seven recognized subfamilies: Leucosphaerinae, Myrteinae, Codakiinae, and Lucininae, with none of these comprising exclusively deep-water species. Amongst the Leucosphaerinae, Alucinoma, Epidulcina, Dulcina, and Myrtina live mainly at depths greater than 200m. Most Myrteinae inhabit water depths below 100m, including Myrtea, Notomyrtea, Gloverina, and Elliptiolucina... |
| Tipo: Text |
Palavras-chave: Adaptive radiation; Chemosymbiosis; Hydrocarbon seeps; Phylogeny. |
| Ano: 2014 |
URL: https://archimer.ifremer.fr/doc/00218/32953/31615.pdf |
| |
|
|
| Nahum,Laila Alves; Pereira,Sérgio Luiz; Campos Fernandes,Flora Maria de; Russo Matioli,Sergio; Wajntal,Anita. |
| Partial cytochrome b and 12S rDNA mitochondrial DNA sequences of eight representatives of the Ramphastidae family were analyzed. We applied the linearized tree method to identify sequences evolving at similar rates and estimated the divergence times among some of the taxa analyzed. After excluding Ramphastos tucanus and Capito dayi from our data set, the remaining taxa presented a constant rate of DNA substitution, and branch lengths could be re-estimated with a clock constraint using the maximum likelihood method. Branch lengths were calibrated assuming that Galliformes and Piciformes split around 100 million years ago (mya). Our results indicate that Ramphastinae, and probably Capitoninae, diverged from other Piciformes in the Late Cretaceous (~82 mya),... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Divergence times; K/T; Mass extinction; Cytochrome b; 12S rDNA; Paleogeography; Phylogeny. |
| Ano: 2003 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572003000400003 |
| |
|
| |
|
|
| Turchetto-Zolet,Andreia Carina; Christoff,Ana Paula; Kulcheski,Franceli Rodrigues; Loss-Morais,Guilherme; Margis,Rogerio; Margis-Pinheiro,Marcia. |
| Abstract Since the first diacylglycerol acyltransferase (DGAT) gene was characterized in plants, a number of studies have focused on understanding the role of DGAT activity in plant triacylglycerol (TAG) biosynthesis. DGAT enzyme is essential in controlling TAGs synthesis and is encoded by different genes. DGAT1 and DGAT2 are the two major types of DGATs and have been well characterized in many plants. On the other hand, the DGAT3 and WS/DGAT have received less attention. In this study, we present the first general view of the presence of putative DGAT3 and WS/DGAT in several plant species and report on the diversity and evolution of these genes and its relationships with the two main DGAT genes (DGAT1 and DGAT2). According to our analyses DGAT1, DGAT2,... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Triacylglycerol biosynthesis; DGAT; Phylogeny; Gene structure. |
| Ano: 2016 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572016000400524 |
| |
|
|
| Orihara, T.; Smith, M.E.; Shimomura, N.; Iwase, K.; Maekawa, N.. |
| The sequestrate fungi of Japan, including truffle and truffle-like fungi, have not been well characterized but are potentially diverse. We investigated the diversity and phylogeny of Japanese Octaviania specimens using a multifaceted approach including scanning and transmission electron microscopy as well as analysis of nuclear ribosomal DNA (ITS and LSU) and EF-1α (tef1) sequences. Phylogenetic analyses indicate that the genus Octaviania is divided into three major clades, and that there are at least 12 species-level lineages in Japan. Accordingly, we describe two new subgenera, Parcaea and Fulvoglobus, and eleven new species. Subgenus Parcaea accommodates four highly divergent, but macromorphologically almost indiscernible cryptic species. We discuss not... |
| Tipo: Article / Letter to the editor |
Palavras-chave: Biogeography; Boletaceae; Cryptic species; Hypogeous fungi; Phylogeny; Taxonomy. |
| Ano: 2012 |
URL: http://www.repository.naturalis.nl/record/531994 |
| |
|
|
| Nieukerken, E.J. van; Mutanen, M.; Doorenweerd, C.. |
| We sequenced the mitochondrial barcoding marker COI and nuclear marker EF1-alpha for most Nordic and other European species of the Stigmella salicis and S. aurella species groups. In the S. salicis group both markers confirm the synonymy of S. lappovimella with S. zelleriella. Specimens previously identified as Stigmella salicis and S. vimineticola are shown to form a complex of several cryptic species for which the taxonomy needs to be worked out. The species previously recorded as S. vimineticola from Norway represents probably an unnamed species. In the S. aurella group, the oligophagous Rosaceae feeders S. aurella and S. poterii are confirmed to be each a single oligophagous species. The synonymy between Stigmella ulmariae from Filipendula ulmaria and... |
| Tipo: Article / Letter to the editor |
Palavras-chave: DNA barcoding; Phylogeny; Lepidoptera; 42.75. |
| Ano: 2012 |
URL: http://www.repository.naturalis.nl/record/417740 |
| |
|
|
| Wasof, Safaa; Lenoir, Jonathan; Hattab, Tarek; Jamoneau, Aurelien; Gallet-moron, Emilie; Ampoorter, Evy; Saguez, Robert; Bennsadek, Lamine; Bertrand, Romain; Valdes, Alicia; Verheyen, Kris; Decocq, Guillaume. |
| Questions How does plant community diversity influence variation in plant biomass? There are two competing hypotheses: the ‘biomass‐ratio hypothesis’, where biomass is influenced by the abundance and traits of the most dominant species, and the ‘diversity hypothesis’, where the diversity of organisms influences biomass through mechanisms such as niche complementarity. However, no studies have tested which one of these two hypotheses better explains the variation in plant biomass in the forest understorey. Location Temperate deciduous forests in Northern France. Methods For the forest understorey, we assessed species diversity and biomass as well as soil and light conditions in 133 forest plots of 100m² each. Using mixed‐effect models and after controlling... |
| Tipo: Text |
Palavras-chave: Biodiversity; Biomass; Biomass ratio hypothesis; Forest understorey; Functional diversity; Ivy; Phylogeny; Production. |
| Ano: 2018 |
URL: https://archimer.ifremer.fr/doc/00433/54441/55799.pdf |
| |
|
| |
|
|
| Oliveira,Edson Fontes; Goulart,Erivelto; Breda,Luciani; Minte-Vera,Carolina Viviana; Paiva,Luiz Ricardo de Souza; Vismara,Melina Rizzato. |
| Ecomorphological patterns of the fish assemblage from the upper Paraná River floodplain, Brazil, were described and evaluated according to trophic (guilds), spatial (habitats) and phylogenetic (taxonomic distances) structures. The samples were obtained through the Long Term Research Project (LTER-CNPq/UEM/NUPELIA) in August and October 2001. Thirty-five species were analyzed from thirty-one morphological variables. Strong significant correlations (Mantel test) between morphology and trophic guilds and between morphology and taxonomy were found, while morphology and habitat revealed a weak correlation. However, the partial Mantel test showed that the correlations between morphology and trophic guilds persist even when the effect of taxonomy is discounted.... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Ecomorphology; Ecomorphotypes; Trophic guilds; Habitat diversity; Phylogeny; Upper Paraná River. |
| Ano: 2010 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252010000300002 |
| |
|
|
| Toma,Ronaldo; Carvalho,Claudio José Barros de. |
| A study of phylogenetic relationships of the genera of Mesembrinellinae and of the species of Eumesembrinella Townsend, 1931, on the ground of shared derived character states (synapomorphies) is presented. Resulting the following assumption: Laneella Mello, 1967 presenting sister group relationship with all other Mesembrinellinae, followed by Souzalopesiella Guimarães, 1977, M. peregrina Aldrich, 1922 that was isolated from Mesembrinella Giglio-Tos, 1893. Mesembrinella was considered paraphiletic, its species were judged in changeable positions at the bifurcation point of analysis of Albuquerquea Mello, 1967 with the tricotomic interrelationships of Thompsoniella Guimarães, 1977, Huascaromusca Townsend, 1918 and Eumesembrinella Townsend, 1931. The... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Calliphoridae; Mesembrinellinae; Eumesembrinella; Classification; Phylogeny. |
| Ano: 1995 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81751995000100014 |
| |
|
| |
|
|
| Kautmanová, I.; Tomšovský, M.; Dueñas, M.; Martín, M.P.. |
| Clavaria species with dark basidiomata occurring in Europe were analysed using morphological and molecular methods. Morphological analyses revealed four groups containing seven Clavaria species with dark basidiomata. Phylogenetic analysis of the LSU nrDNA region confirmed the separate positions of all seven Clavaria species within the genus. All sequences were grouped in four well-supported clades, mostly corresponding to defined morphological species. The results of the molecular study are inconsistent with the infrageneric classification of Clavaria based on the presence or absence of clamps on the bases of basidia and two widely accepted subgenera. Clavaria and Holocoryne appear to be polyphyletic. A new approach in species delimitation is presented: 1)... |
| Tipo: Article / Letter to the editor |
Palavras-chave: Basidiospores; Europe; Fungi; LSU nrDNA; Phylogeny. |
| Ano: 2012 |
URL: http://www.repository.naturalis.nl/record/531652 |
| |
| Registros recuperados: 404 | |
|
|
|
