A5009697550- Genetic diversity and population structure
- Genetic and phenotypic traits in livestock
- Plant and animal studies
- Polysaccharides Composition and Applications
- Wildlife Ecology and Conservation
- Botanical Research and Chemistry
- Plant Reproductive Biology
- Plant Taxonomy and Phylogenetics
- Botany, Ecology, and Taxonomy Studies
- Ecology and Vegetation Dynamics Studies
- Genetic Mapping and Diversity in Plants and Animals
- Insect-Plant Interactions and Control
- Insect Resistance and Genetics
- Genetics and Plant Breeding
- Silkworms and Sericulture Research
- Plant Pathogens and Fungal Diseases
- Wood Treatment and Properties
- Plant Diversity and Evolution
- Insect behavior and control techniques
- Plant Toxicity and Pharmacological Properties
- Botanical Research and Applications
- Plant and fungal interactions
- Plant and soil sciences
- Lichen and fungal ecology
- Mycorrhizal Fungi and Plant Interactions
Fundación Ciencias Exactas y Naturales
2010-2022
University of Buenos Aires
2011-2022
Consejo Nacional de Investigaciones Científicas y Técnicas
2009-2020
Institute of Astronomy and Space Physics
2015-2019
Centro Científico Tecnológico - Tucumán
2002-2013
Centro Científico Tecnológico - San Juan
2012
The genus Prosopis is an important member of arid and semiarid environments around the world.To study diversification evolution, a combined approach including molecular phylogeny, dating, character optimization analysis was applied.Phylogenetic relationships were inferred from five different markers G3pdh, NIA).Taxon sampling involved total 30 species that represented all Sections Series complete geographical range genus.The results suggest not natural group.Molecular dating indicates...
As only six useful microsatellite loci that exhibit broad cross-amplification are so far available for Prosopis species, it is necessary to develop a larger number of codominant markers population genetic studies. Simple sequence repeat (SSR) obtained species from 454 pyrosequencing run were optimized and characterized studies in P. alba chilensis. •Twelve successfully amplified showed polymorphism The alleles per locus ranged between two seven heterozygosity estimates 0.2 0.8. Most these...
The integration of ecology and genetics has become established in recent decades, hand with the development new technologies, whose implementation is allowing an improvement tools used for data analysis. In a landscape context, integrative management population information from different sources can make spatial studies involving phenotypic, genotypic environmental simpler, more accessible faster. Tools exploratory analysis autocorrelation help to uncover genetic structure populations...
Endophytes of several South American grasses were examined. The taxonomic status endophytes in Festuca argentina, F. hieronymi, Poa huecu, and an unidentified species is evaluated. On the basis morphological features, rDNA protease gene sequence data, it proposed that this endophyte different from other examined North American, European Poa. These endophytes, believed responsible for causing ‘tembladera’ or ‘huecú’ toxicosis animals, have also been reported to produce unique toxins. Isozyme...
Small inversions (SIs) in the chloroplast genome of angiosperms are ubiquitous. These always flanked by inverted repeats (palindromes or quasipalindromes) between approximately 8 and 50 bp long that form a hairpin structure when DNA is single-stranded. We evaluated different methodological empirical issues about SI evolution. As case study, we analysed an recently discovered psbC-trnS intergenic region Prosopis (Fabaceae). First, how can be optimized cases where segment also shows indels...
Endophytes of several South American grasses were examined. The taxonomic status endophytes in Festuca argentina, F. hieronymi, Poa huecu, and an unidentified species is evaluated. On the basis morphological features, rDNA protease gene sequence data, it proposed that this endophyte different from other examined North American, European Poa. These endophytes, believed responsible for causing ‘tembladera’ or ‘huecú’ toxicosis animals, have also been reported to produce unique toxins. Isozyme...
Anastrepha fraterculus (Wiedmann), a South American fruit fly, is an economically important pest for fruit-bearing plants of the neotropical region. Some evidence indicates that nominal A. comprises multiple cryptic species. In current work we analyzed genetic variability and structure in Argentine populations based on eight isoenzymatic loci restriction patterns fragment ≈500 bp belonging to 16 S mitochondrial ribosomal DNA. The analysis indicated significant excess homozygotes (FIS > 0),...
Morphological and genetic diversity among Acacia aroma , A. macracantha caven furcatispina were studied with morphometric, isozymal, RAPD approaches. The analysis of seven isozyme systems revealed 21 loci, showed 34 loci. Most these loci allowed us to differentiate the species, exception two most similar species. levels variability estimated by isozymes higher than those obtained from analyses. Morphometric characters highly significant differences although are differentiated only thorn...
Prosopis represents a valuable forest resource in arid and semiarid regions. Management of promising species requires information about genetic parameters, mainly the heritability (h(2)) quantitative profitable traits. This parameter is traditionally estimated from progeny tests or half-sib analysis conducted experimental stands. Such an approach estimates h(2) ratio between-family/total phenotypic variance. These analyses are difficult to apply natural populations with long life cycle,...
The knowledge about reproductive strategies of a species contributes to their conservation. Multiple paternity is behavior increasing effective population size, which could increase genetic diversity particularly in populations submitted bottlenecks events. In Argentina, wild Caiman latirostris are subject management plan devoted preservation and sustainable utilization based on its commercial interest. This program started response the evident numeric reduction populations, as consequence...