Resultados de búsqueda - "evolutionary"

Framework for transforming best practices for landrace conservation to policies por Munyi, P., Grum, M., Ndung'u-Skilton, J., Bioversity International

“…In situ strategies are an important and complementary component of the overall agrobiodiversity conservation efforts that aim to conserve not only crop genetic resources but also crop evolutionary processes. However, policy support of the science and practice of in situ conservation, lag behind CBD commitment in much of SSA. …”
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High-resolution mapping of resistance to cassava mosaic geminiviruses in cassava using genotypingbysequencing and its implications for breeding por Rabbi, Ismail Y., Hamblin, M., Kumar, P. Lava, Gedil, Melaku A, Ikpan, A., Jannink, Jean-Luc, Kulakow, Peter A.

“…In the absenceof further resistance diversification, the long-term effectiveness of the single gene resistance is knownto be precarious, given the potential to be overcome by CMGs due to their fast-paced evolutionary rate.However, combining the quantitative with the qualitative type of resistance may ensure that this resis-tance gene continues to offer protection to cassava, a crop that is depended upon by millions of peoplein Africa against the devastating onslaught of CMGs.…”
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Unlocking the complete chloroplast genome of a native tree species from the Amazon Basin, capirona (Calycophyllum spruceanum, Rubiaceae), and Its comparative analysis with other Ix... por Saldaña Serrano, Carla Lizet, Rodriguez Grados, Pedro Manuel, Chávez Galarza, Julio César, Feijoo Narvasta, Shefferson Gilbert Wilson, Guerrero Abad, Juan Carlos, Vásquez Pérez, Héctor Vladimir, Maicelo Quintana, Jorge Luis, Jhoncon, Jorge H., Arbizu Berrocal, Carlos Irvin

“…This study reports for the first time the genome organization, gene content, and structural features of the chloroplast genome of C. spruceanum, providing valuable information for genetic and evolutionary studies in the genus Calycophyllum and beyond.…”
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Phenotypic plasticity in the energy metabolism of a small Andean rodent: Effect of short-term thermal acclimation and developmental conditions por Menéndez, Josefina, Ruperto, Emmanuel Fabián, Taraborelli, Paula Andrea, Sassi, Paola Lorena

“…The study of phenotypic variation within species in response to different environments is a central issue in evolutionary and ecological physiology. Particularly, ambient temperature is one of the most important factors modulating interactions between animals and their environment. …”
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Munroa argentina, a grass of the South American transtion zone, survived the Andean uplift, aridification and glaciations of the quaternary por Amarilla, Leandro, Anton, Ana Maria Ramona, Chiapella, Jorge Oscar, Manifesto, Maria Marcela, Angulo, Diego Francisco, Sosa, Victoria

“…The South American Transition Zone (SATZ) is a biogeographic area in which not only orogeny (Andes uplift) and climate events (aridification) since the mid-Miocene, but also Quaternary glaciation cycles had an important impact on the evolutionary history of the local flora. To study this effect, we selected Munroa argentina, an annual grass distributed in the biogeographic provinces of Puna, Prepuna and Monte. …”
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First records of pigmentation anomalies in the marsh deer at its southernmost stronghold: a warning message? por Pereira, Javier Adolfo, Wolfenson, Laura I., Artero, Diego F., Argerich, Esteban C., Varela, Diego, Fracassi, Natalia

“…Identifying the spatiotemporal distribution and prevalence of pigmentation anomalies is important to better assess the evolutionary basis of color variation. The southernmost population of the marsh deer (Blastocerus dichotomus) occurs within a relatively small area (< 2700 km2) of the Delta of the Paraná River, being fragmented into three subpopulations with low gene flow among them. …”
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Two novel flavi-like viruses shed light on the plant-infecting koshoviruses por Debat, Humberto Julio, Bejerman, Nicolas Esteban

“…Here, we report the identification and characterization of two novel RNA viruses that show a genetic and evolutionary relationship to the previously identified “koshoviruses”. …”
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Investigating biogeographic patterns of Rhizobium leguminosarum symbiovar viciae within the tribe Fabeae por Trad, Rafaela, Roberts, Sarah, Morales, Matias, Young, Peter, James, Euan, Kenicer, Gregory

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Dispersal behavior of yellowjacket (Vespula germanica) queens por Masciocchi, Maite, Martinez Von Ellrich, Andres, Pereira, Ana Julia, Villacide, Jose Maria, Corley, Juan Carlos

“…Dispersal can have clear evolutionary and ecological consequences, but for nonnative insect pests, dispersal capacity can also help to explain invasion success. …”
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How did antibiotic growth promoters increase growth and feed efficiency in poultry? por Fernandez Miyakawa, Mariano Enrique, Casanova, Natalia Alejandra, Kogut, Michael H.

“…In eukaryotes, these adaptive responses of the mitochondria to internal and external environmental conditions, can promote growth rate of the organism as an evolutionary strategy to overcome potential negative conditions. …”
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Assessing the Impact of Ramularia Leaf Spot on Barley: Prospects for Fungicide Protection Strategies and Weather-Based Prediction Models in Argentina por Erreguerena, Ignacio Antonio, Quiroz, Facundo Jose, Cambareri, Matias, Pereyra, Silvia, Havis, Neil David, Carmona, Marcelo Anibal

“…Characteristics of the pathogen such as a long latency period, high evolutionary potential, numerous transposonic regions and the ability to infect alternative hosts facilitate Rcc adaption to environmental changes and/or control measures such as fungicides. …”
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Coexistence between two fruit fly species is supported by the different strength of intra- and interspecific competition por Liendo, Marí­a Clara, Parreño, Marí­a Alejandra, Cladera, Jorge Luis, Vera, María Teresa, Segura, Diego Fernando

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Bio-inoculation of yerba mate seedlings (Ilex paraguariensis St. Hill.) with native plant growth-promoting rhizobacteria: a sustainable alternative to improve crop yield por Bergottini, Veronica M., Otegui, Mónica B., Sosa, Domingo Alberto, Zapata, Pedro Darío, Mulot, M., Rebord, M., Zopfi, J., Wiss, F., Benrey, B., Junier, Pilar

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Genetic versus environmental contributions to variation in seedling resprouting in Nothofagus obliqua por Aparicio, Alejandro Gabriel, Zuki, Sebastián Maximiliano, Azpilicueta, Maria Marta, Barbero, Fernando Alvaro, Pastorino, Mario Juan

“…Low trait heritability suggests limited in situ micro-evolutionary capacities for resprouting traits under ongoing climate warming; phenotypic plasticity may play an important role in population persistence at the low positions of the elevation gradients N. obliqua currently inhabits.…”
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Gene content and distribution in the nuclear genome of Fragaria vesca por Pontaroli, Ana Clara, Rogers, Rebekah L., Qian, Zhang, Shields, Melanie E., Davis, Thomas M., Folta, Kevin M., SanMiguel, Phillip, Bennetzen, Jeffrey L.

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Grapevine virus L: a novel vitivirus in grapevine por Debat, Humberto Julio, Zavallo, Diego, Brisbane, Reid Soltero, Vončina, Darko, Almeida, Rodrigo P. P., Blouin, Arnaud G., Al Rwahnih, Maher, Gomez Talquenca, Gonzalo, Asurmendi, Sebastian

“…Here, we present the characterization of a novel virus from grapevine, which fits the genomic architecture and evolutionary constraints to be classified within the Vitivirus genus. …”
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Potato snakin‑1: an antimicrobial player of the trade‑off between host defense and development por Almasia, Natalia Ines, Nahirñak, Vanesa, Hopp, Horacio Esteban, Vazquez Rovere, Cecilia

“…Snakin-1 (SN1) from potato is a cysteine-rich antimicrobial peptide with high evolutionary conservation. It has 63 amino acid residues, 12 of which are cysteines capable of forming six disulfide bonds. …”
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Overexpression of snakin-1 gene enhances resistance to Rhizoctonia solani and Erwinia carotovora in transgenic potato plants por Almasia, Natalia Ines, Bazzini, Ariel Alejandro, Hopp, Horacio Esteban, Vazquez Rovere, Cecilia

“…Nucleotide sequences revealed highly evolutionary conservation with 91–98% identity values. …”
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A novel specific duplex real-time RT-PCR method for absolute quantitation of Grapevine Pinot gris virus in plant material and single mites por Morán, Félix, Olmos, Antonio, Lotos, Leonidas, Katis, Nikolaos, Glasa, Miroslav, Predajna, Lukas, Ruiz-García, Ana B.

“…A phylogenetic study based on this genomic region has shown a high variability among Spanish isolates and points to a different evolutionary origin of this new polymorphism. The methodology here developed opens new possibilities for basic and epidemiological studies as well as for the establishment of efficient control strategies.…”
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Single-nucleotide mosaicism in citrus: Estimations of somatic mutation rates and total number of variants por Pérez-Román, Estela, Borredá, Carles, López-García, Antonio, Talón, Manuel

“…Assuming a perfect configuration and taking advantage of previous counts on the number of total leaves of typical clementine trees, these mutation determinations allowed to estimate for the first time the total number of variants present in a standard adult tree (1,500–5,000) and the somatic mutations generated in a typical leaf flush (0.92–1.19). From an evolutionary standpoint, the sectoral distribution of somatic mutations and the habit of periodic foliar renewal of long-lived plants appear to increase genetic heterogeneity and, therefore, the adaptive role of somatic mutations reducing the mutational load and providing fitness benefits.…”
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