Resultados de búsqueda - "Phylogenetics"

A novel spotted fever group Rickettsia infecting Amblyomma parvitarsum (Acari: Ixodidae) in highlands of Argentina and Chile por Ogrzewalska, María, Nieri-Bastos, Fernanda A., Marcili, Arlei, Nava, Santiago, González-Acuña, Daniel, Muñoz-Leal, Sebastian, Ruiz-Arrondo, Ignacio, Venzal, José Manuel, Mangold, Atilio Jose, Labruna, Marcelo B.

“…These sequences were concatenated and aligned with rickettsial corresponding sequences available in GenBank. Phylogenetic analysis revealed that the A. pavitarsum rickettsial agent grouped under high bootstrap support in a clade composed by the SFG pathogens R. sibirica, R. africae, R. parkeri, Rickettsia sp. strain Atlantic rainforest, and two unnamed SFG agents of unknown pathogenicty, Rickettsia sp. strain NOD, and Rickettsia sp. strain ApPR. …”
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Phenotypic Variability and Genetic Diversity of the Pathogenic Fungus Macrophomina phaseolina from Several Hosts and Host Specialization in Strawberry por Viejobueno, Josefina, Santos, Berta de los, Camacho-Sánchez, Miguel, Aguado, Ana, Camacho, María, Salazar, Sergio Miguel

“…The genetic structure analyzed with four DNA markers (EF-1α, ITS, CAL and TUB) showed little diversity among isolates of M. phaseolina, with no clear association with the country of origin, but a significant association with the host. Based on their phylogenetic affinity, one isolate was reclassified as M. pseudophaseolina and another one as M. tecta. …”
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Spatial distribution of Mycobacterium bovis spoligotypes in cattle from the state of Minas Gerais, Brazil por Souza, Mariana Assunção de, Lopes, Thaís Aline Carolino, Silva, Brendhal Almeida, Bombonato, Nadia Grandi, Dib, Cristina Corsi, Marfil, Maria Jimena, Zumarraga, Martin Jose, Lima, Anna Monteiro Correia

“…Genotyping methods have led to a better understanding of the epidemiology of Mycobacterium bovis (M. bovis) infection, and its transmission dynamics, as well as the possible phylogenetic relationships between Mycobacterium strains, thus making bovine tuberculosis control programs more efficient. …”
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Evolution of Animal South American RVA Told by the NSP4 Gene E12 Genotype por Miño, Samuel, Badaracco, Alejandra, Louge Uriarte, Enrique Leopoldo, Ciarlet, Max, Parreño, Viviana

“…In this work, we studied the evolutionary relationships of RVA strains carrying the E12 genotype in South America using phylogenetic and phylodynamic approaches. We found that the E12 genotype has a South American origin, with a guanaco (Lama guanicoe) strain as natural host. …”
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Low Genetic Diversity of the Only Clade of the Tick Rhipicephalus microplus in the Neotropics por Díaz-Sánchez, Sandra, Hernández-Triana, Luis M., Labruna, Marcelo B., Merino, Octavio, Mosqueda, Juan, Nava, Santiago, Szabó, Matías P.J., Tarragona, Evelina Luisa, Venzal, José Manuel, de La Fuente, José, Estrada-Peña, Agustín

“…Both the K and Lambda’s statistics, two measures of phylogenetic signal, support low divergence rates of the tested genes in populations of R. microplus in the Neotropics. …”
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Introgression from local cultivars is a driver of agricultural adaptation in Argentinian weedy rice por Presotto, Alejandro Daniel, Hernández, Fernando, Vercellino, Roman Boris, Kruger, Raúl, Fontana, Maria Laura, Ureta, Maria Soledad, Crepy, Maria Andrea, Auge, Gabriela, Caicedo, Ana

“…Argentinian cultivars belonged to the three major genetic groups of rice: japonica, indica and aus while weeds were mostly aus or aus-indica admixed, resembling weedy rice strains from the Southern Cone region. Phylogenetic analysis supports a single origin for aus-like South American weeds, likely as seed contaminants from the United States, and then admixture with local indica cultivars. …”
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Importance of native vegetation for detection and management of rice stink bug (Tibraca limbativentris) por Fuentes Rodríguez, Daniela Alejandra, Franceschini, Maria Celeste, Gervazoni, Paula Belen, Lopez, Gabriela, Sosa, Alejandro Joaquin, Kruger, Raúl

“…Our results show significant differences in the abundance/density that T. limbativentris reaches in the 12 host plant species present in our study areas, with a plant-use pattern significantly related to the phylogenetic clade of Poales. Stink bug winter populations mainly comprised diapause adults, and 40% of insect digestive tracts had content. …”
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Unveiling the defensive role of Snakin‑3, a member of the subfamily III of Snakin/GASA peptides in potatoes por Nahirñak, Vanesa, Almasia, Natalia Ines, Lia, Veronica Viviana, Hopp, Horacio Esteban, Vazquez Rovere, Cecilia

“…In potato, 18 Snakin/GASA genes were identified and classified into three groups based on phylogenetic analysis. Snakin-1 and Snakin-2 are members of subfamilies I and II, respectively, and were reported to be implicated not only in defense against pathogens but also in plant development. …”
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Molecular characterization of equine rotavirus group A detected in Argentinean foals during 2009–2014 por Miño, Samuel, Aduriz Guerrero, Matí­as, Barrandeguy, Maria Edith, Parreño, Viviana

“…Furthermore, clustering in the phylogenetic tree suggests evolutionary and geographic relationships between the Argentinean strains compared with the strain circulating worldwide.…”
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Molecular identification of Sarcocystis aucheniae as the macrocyst-forming parasite of llamas por Carletti, Tamara, Martin, Mara, Romero, Sandra Raquel, Morrison, David A., Marcoppido, Gisela Ariana, Florin-Christensen, Monica, Schnittger, Leonhard

“…In order to verify the identity of the species present in SACs of South America, the complete 18S rRNA gene was PCR-amplified and sequenced from macrocyst DNA obtained from three llamas of the Andean flatlands. A phylogenetic Bayesian analysis was carried out using the analyzed and available 18S rRNA sequences of Sarcocystis spp. …”
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Genomic analysis of inbreeding level, kinship and breed relationships in Creole cattle from South America por Marcuzzi, Olivia, Calcaterra, Francisco, Loza Vega, Ariel Jhonny, Ortega Masague, Maria Florencia, Armstrong, Eileen, Pereira Rico, Juan A., Jara Tellechea, Eugenio Salvador, Olivera, L. Hernán, Peral Garcia, Pilar, Giovambattista, Guillermo

“…In addition, effective population size (Ne), linkage disequilibrium, population composition and phylogenetic relationships were estimated. In Creole cattle, FROH ranged from 0.14 to 0.03, and Fhat2 was close to zero. …”
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Novel Tri-Segmented Rhabdoviruses: A Data Mining Expedition Unveils the Cryptic Diversity of Cytorhabdoviruses por Bejerman, Nicolas Esteban, Dietzgen, Ralf Georg, Debat, Humberto Julio

“…Genetic distance and evolutionary insights suggest that all these novel viruses may represent members of novel species. Phylogenetic analyses, of both novel and previously classified plant rhabdoviruses, provide compelling support for the division of the genus Cytorhabdovirus into three distinct genera. …”
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Five-Year Molecular Surveillance Reveals Widespread Foodborne Enteric Viruses in Bivalve Mollusks From Golfo Nuevo, Argentina por Frydman, Camila Ayelén, Miño, Samuel, Barbieri, Elena Susana, Galeano, Fabiana Solange, Vaudagna, Sergio Ramon, Parreño, Gladys Viviana, Mozgovoj, Marina Valeria

“…Norovirus genogroups I/II (NoV GI/GII), rotavirus A (RVA), hepatitis A (HAV) and E (HEV) viruses, and adenovirus (AdV) were detected and quantified by RT-qPCR/qPCR, genotyped, and subjected to phylogenetic analysis. At least one virus was detected in 40.7% of composite samples. …”
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Further description of Helicoverpa zea (Lepidoptera: noctuidae) male genitalia and new genetic evidence of synonymy with respect to the anomalous form, “heliothis stombleri” por Balbi, Emilia Ines, Flores, Fernando Miguel, Tosto, Daniela Sandra, Arneodo Larochette, Joel Demian

“…This form was initially attributed to a distinct species, Heliothis stombleri, and later proposed as a synonym of H. zea based on additional morphological observations and molecular studies. Here, a phylogenetic analysis combining mitochondrial (cytochrome oxidase subunit I) and nuclear (elongation factor –1 alpha) genes was performed on these and other Helicoverpa specimens collected in the same geographical region, in order to further verify the taxonomic status of H. stombleri. …”
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Molecular variability of watermelon mosaic virus isolates from Argentina por Pozzi, Elizabeth Alicia, Perotto, Maria Cecilia, Bertin, S., Manglli, A., Luciani, Cecilia Elizabeth, Conci, Vilma Cecilia, Tomassoli, L.

“…At the molecular level, WMV isolates were grouped into three distinct major phylogenetic groups based on genetic distance. Majority of the Argentine isolates belonged to the emerging group (G3), whereas one isolate was included in G1 and another cluster in G2. …”
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First detection of “Candidatus Rickettsia wissemanii” in Ornithodoros hasei (Schulze, 1935) (Acari: Argasidae) from Argentina por Colombo, Valeria Carolina, Montani, Maria Eugenia, Pave, Romina Elizabeth, Antoniazzi, Leandro Raúl, Gamboa, Marcelo D., Fasano, Agustín Alfonso, Félix, Maria L., Nava, Santiago, Venzal, José Manuel

“…Positive ticks were subjected to a second PCR round with primers Rr190.70p and Rr190.701n of the spotted fever group rickettsiae ompA gene. A phylogenetic analysis was performed with Maximum-likelihood method, and the best fitting substitution models were determined with the Akaike Information Criterion. …”
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Genome-wide variation, candidate regions and genes associated with fat deposition and tail morphology in Ethiopian indigenous sheep por Ahbara, A., Bahbahani, Hussain, Almathen, F., Al Abri, M., Agoub, M.O., Abeba, A., Kebede, A., Musa, H.H., Mastrangelo, S., Pilla, F., Ciani, E., Hanotte, Olivier H., Mwacharo, Joram M.

“…Population structure, PCA and phylogenetic analysis separate the Ethiopian indigenous fat-tail sheep from the North African and Middle Eastern fat-tailed sheep. …”
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Evaluation of linkage disequilibrium, population structure, and genetic diversity in the U.S. peanut mini core collection por Otyama, P.I., Wilkey, A., Kulkarni, R., Assefa, T., Chu, Y., Clevenger, J., O’Connor, D.J., Wright, G.C., Dezern, S.W., MacDonald, G.E., Anglin, Noelle L., Cannon, Ethalinda K.S., Ozias-Akins, P., Cannon, Steven B.

“…The remaining 30 accessions had either missing taxonomic classification or were classified as mixed. Phylogenetic network analysis also clustered accessions into approximately five groups based on their genotypes, with loose correspondence to subspecies and market type. …”
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Genome-wide analyses of cassava Pathogenesis-related (PR) gene families reveal core transcriptome responses to whitefly infestation, salicylic acid and jasmonic acid por Irigoyen, Maria L., Garceau, Danielle C, Bohórquez Cháux, Adriana, Becerra López Lavelle, Luis Augusto, Pérez Fons, Laura, Fraser, Paul D., Walling, Linda L.

“…A cassava PR gene nomenclature is proposed. Phylogenetic relatedness of cassava PR proteins to each other and to homologs in poplar, rice and Arabidopsis identified cassava-specific PR gene family expansions. …”
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Molecular evidence confirms occurrence of Rhipicephalus microplus Clade A in Kenya and sub-Saharan Africa por Kanduma, Esther G., Emery, D., Githaka, Naftaly W., Nguu, E.K., Bishop, Richard P., Šlapeta, J.

“…Methods Ticks were collected in south-eastern Kenya (Kwale County) from cattle and characterized to investigate the existence of R. microplus. Genetic and phylogenetic relationships between the Kenyan and other annotated R. microplus reference sequences was investigated by analysis of the cytochrome c oxidase subunit 1 (cox1) gene. …”
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