Instituto de Recursos Biológicos: Envíos recientes
Mostrando ítems 301-320 de 325
-
Drivers of agricultural land - use change in the Argentine Pampas and Chaco regions
(2018-02)Agricultural expansion and intensification in South America's dry forests and grasslands increase agricultural production, but also result in major environmental trade-offs. The Pampas and Chaco regions of Argentina have ... -
Toward sustainable environmental quality: Identifying priority research questions for Latin America
(2018-02)The Global Horizon Scanning Project (GHSP) is an innovative initiative that aims to identify important global environmental quality research needs. Here we report 20 key research questions from Latin America (LA). Members ... -
Genomic-based multiple-trait evaluation in Eucalyptus grandis using dominant DArT markers
(2018-06)We investigated the impact of combining the pedigree- and genomic-based relationship matrices in a multiple-trait individual-tree mixed model (a.k.a., multiple-trait combined approach) on the estimates of heritability and ... -
Green spaces in a tertiary care children`s hospital benefits, taxonomic survey, and perspective
(2018-04)El contacto del ser humano con espacios verdes naturales tiene un efecto físico, mental y social beneficioso. Con el primer objetivo de conocer las especies vegetales de los jardines del Hospital de Pediatría Garrahan ... -
Synergy between glyphosate- and cypermethrin-based pesticides during acute exposures in tadpoles of the common South American Toad Rhinella arenarum
(2014)The herbicide glyphosate and the insecticide cypermethrin are key pesticides of modern management in soy and corn cultures. Although these pesticides are likely to co-occur in ephemeral ponds or aquatic systems supporting ... -
Toxicities of glyphosate- and cypermethrin-based pesticides are antagonic in the tenspotted livebearer fish (Cnesterodon decemmaculatus)
(2016)Although pesticide contamination of surface waters normally occurs in the form of mixtures, the toxicity and interactions displayed by such mixtures have been little characterized until now. The present study examined ... -
Improving accuracy of breeding values by incorporating genomic information in spatial - competition mixed models
(2017-10)Climate change and the increasing demand for sustainable energy resources require urgent strategies to increase the accuracy of selection in tree breeding (associated with higher gain). We investigated the combined pedigree ... -
Effect of the Hope FT-B1 Allele on wheat heading time and yield components
(2014-09)Precise regulation of flowering time is critical for plant reproductive success and, in cereals, to maximize grain yields. Seasonal cues including temperature and day length are integrated to regulate the timing of flowering. ... -
Genetic and physical mapping of the earliness perse locus Eps - Am1 in Triticum monococcum identifies early flowering 3 (ELF3) as a candidate gene
(2016-07)Wheat cultivars exposed to optimal photoperiod and vernalization treatments still exhibit differences in heading time. This variation, known as earliness per se (Eps), is important for the fine-tuning of flowering and the ... -
Morphological and molecular identification of the invasive Xylosandrus crassiusculus (Coleoptera: Curculionidae: Scolytinae) and its South American range extending Into Argentina and Uruguay
(2017-05)The occurrence of the exotic “granulate ambrosia beetle” Xylosandrus crassiusculus (Motschulsky) in Argentina and Uruguay is reported for the first time, documenting expansion in South America. Morphological characters are ... -
Intraspecific variation in essencial oil composition of A.N. the medicinal plant Lippia integrifolia (verbenaceae), evidence for five chemotypes
(2016-02)The aerial parts of Lippia integrifolia (incayuyo) are widely used in northwestern and central Argentina for their medicinal and aromatic properties. The essential oil composition of thirty-one wild populations of L. ... -
Identification and joint modeling of competition effects and environmental heterogeneity in three Douglas-fir (Pseudotsuga menziesii var. menziesii) trials
(2016-12)(Co)variance matrices for the assumed model, and thus the specification of the dispersion parameters, should take into account both the negative competition and the positive spatial correlations. In this context, we applied ... -
Single-step BLUP with varying genotyping effort in open-pollinated Picea glauca
(2017-03)Maximization of genetic gain in forest tree breeding programs is contingent on the accuracy of the predicted breeding values and precision of the estimated genetic parameters. We investigated the effect of the combined use ... -
An assessment of the genetic diversity of Cedrela balansae C. DC. (Meliaceae) in Northwestern Argentina by means of combined use of SSR and AFLP molecular markers
(2013-04)Cedrela balansae C.DC. is a native tree species in Argentina, severely exploited for its timber features. We performed a molecular analysis to understand the genetic diversity and its distribution in eight remaining ... -
New insights into antibacterial and antioxidant activities of rosemary essential oils and their main components
(2013-05)Rosemary plants growing in Argentina were studied to evaluate any relationship between the chemical composition of their essential oils and the free radical scavenging capacity. The antibacterial activity against human ... -
Acantholippia seriphioides : chemical biodiversity of wild populations from the Cuyo Region in Argentina = Acantholippia seriphioides: Biodiversidad química de poblaciones silvestres de la región de Cuyo de la Argentina
(2015)Nineteen samples from the aerial parts in bloom of Acantholippia seriphioides (Verbenaceae) were collected in three provinces belonging to the Cuyo region of Argentina. The essential oils were obtained by hydrodistillation, ... -
Multi-season regional analysis of multi-species occupancy : implications for bird conservation in agricultural lands in East-Central Argentina
(2015-07-18)Rapid expansion and intensification of agriculture create challenges for the conservation of biodiversity and associated ecosystem services. In Argentina, the total row crop planted area has increased in recent decades ... -
Characterization of the repetitive DNA landscape in wheat homeologous group 4 chromosomes
(2015)Background: The number and complexity of repetitive elements varies between species, being in general most represented in those with larger genomes. Combining the flow-sorted chromosome arms approach to genome analysis ... -
Identification of single nucleotide polymorphisms [SNPs] at candidate genes involved in abiotic stress in two Prosopis species and hybrids
(Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria (España), 2014)Aim of the study: Identify and compare SNPs on candidate genes related to abiotic stress in Prosopis chilensis, Prosopis flexuosa and interspecific hybrids Area of the study: Chaco árido, Argentina. Material and Methods: ... -
Structural aspects of dormancy in quinoa (Chenopodium quinoa): Importance and possible action mechanisms of the seed coat
(2015-05)Two possible sources of resistance to pre-harvest sprouting were evaluated in quinoa. They showed dormancy at harvest and significant variations in dormancy level in response to environmental conditions experienced during ...