Aportes a la domesticación de Aristotelia chilensis a partir de la identificación de patrones arquitecturales, asociados a variaciones endógenas y ambientales

Aristotelia chilensis (Molina) Stuntz, (maqui) es una especie leñosa, semi-decidua, de la familia Elaeocarpaceae, nativa de los bosques templados de la Patagonia Argentina y Chile (Doll et al. 2016; Misle et al. 2011). Crece en los sotobosques, comúnmente asociada a Nothofagus dombeyi y Austrocedrus chilensis (Stecconi et al. 2017), los cuales constituyen ambientes contrastantes. Esta especie presenta naturalmente grandes variaciones morfológicas y arquitecturales, además de una gran plasticidad fenotípica, siendo capaz de habitar en un amplio rango de condiciones lumínicas e hídricas (Misle et al. 2011), desde los bosques húmedos hasta el bosque de transición.EEA BarilocheFil: Bramardi, Martín A. Universidad Nacional del Comahue; ArgentinaFil: Roldan, Cecilia Soledad. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Bariloche. Instituto de Investigaciones Forestales y Agropecuarias Bariloche; ArgentinaFil: Roldan, Cecilia Soledad. Consejo Nacional de Investigaciones Cientificas y Tecnicas. Instituto de Investigaciones Forestales y Agropecuarias Bariloche; ArgentinaFil: El Mujtar, Veronica Andrea. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Bariloche. Instituto de Investigaciones Forestales y Agropecuarias Bariloche; ArgentinaFil: El Mujtar, Veronica Andrea. Consejo Nacional de Investigaciones Cientificas y Tecnicas. Instituto de Investigaciones Forestales y Agropecuarias Bariloche; ArgentinaFil: Marchelli, Paula. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Bariloche. Instituto de Investigaciones Forestales y Agropecuarias Bariloche; ArgentinaFil: Marchelli, Paula. Consejo Nacional de Investigaciones Cientificas y Tecnicas. Instituto de Investigaciones Forestales y Agropecuarias Bariloche; ArgentinaFil: Torres, C. Universidad Nacional del Comahue. Instituto de Investigaciones en Biodiversidad y Medioambiente; ArgentinaFil: Torres, C. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Investigaciones en Biodiversidad y Medioambiente; Argentin

FIGURE 1 in Phidon abismus sp. nov. from Patagonian forests of Argentina (Blattaria: Pseudophyllodromiidae)

FIGURE 1. Phidon abismus sp. nov. A: Male dorsal view. B: Male ventral view. C: Female dorsal view. D: Female ventral view.Published as part of Bramardi, Martina A., Moccia, Tobías & Kun, Marcelo E., 2023, Phidon abismus sp. nov. from Patagonian forests of Argentina (Blattaria: Pseudophyllodromiidae), pp. 579-586 in Zootaxa 5297 (4) on page 581, DOI: 10.11646/zootaxa.5297.4.7, http://zenodo.org/record/800923

FIGURE 4 in Phidon abismus sp. nov. from Patagonian forests of Argentina (Blattaria: Pseudophyllodromiidae)

FIGURE 4. Phidon abismus sp. nov. Female and oothecae. A: Dorsal view of the ootheca. B: Adult female carrying a ootheca. C: Lateral view of ootheca. D: Tegmen. Abbreviation: Tx: Textured outline of the ootheca.Published as part of Bramardi, Martina A., Moccia, Tobías & Kun, Marcelo E., 2023, Phidon abismus sp. nov. from Patagonian forests of Argentina (Blattaria: Pseudophyllodromiidae), pp. 579-586 in Zootaxa 5297 (4) on page 584, DOI: 10.11646/zootaxa.5297.4.7, http://zenodo.org/record/800923

FIGURE 3 in Phidon abismus sp. nov. from Patagonian forests of Argentina (Blattaria: Pseudophyllodromiidae)

FIGURE 3. Phidon abismus sp. nov. Male genitalia dorsal view. A: Hypandrium. B–C: Dorsal view. D: Details of right phallomere, warts-bearing membranous area and chaetae-bearing membranous area. E–F: Right phallomere. G: Paraprocts dorsal view. H: Paraprocts posterior view. Abbreviations: cr.p: cribate plate, mt: median triangle, L2D ', L3 ', L4V' and L4U': sclerites, r.o.: rounded outgrowth of the sclerite L3 ', hge: groove of the sclerite L3 ', e.fs: elongated fringed sclerite, c.b.m.a: chaetae-bearing membranous area, w.b.m.a.: warts-bearing membranous area, r.plm ': right phallomere, d. m. o.: dorso-medial outgrowth of the right phallomere, st: stylus, I.pp.: left paraproct, r.pp.: right paraproct.Published as part of <i>Bramardi, Martina A., Moccia, Tobías & Kun, Marcelo E., 2023, Phidon abismus sp. nov. from Patagonian forests of Argentina (Blattaria: Pseudophyllodromiidae), pp. 579-586 in Zootaxa 5297 (4)</i> on page 583, DOI: 10.11646/zootaxa.5297.4.7, <a href="http://zenodo.org/record/8009233">http://zenodo.org/record/8009233</a&gt

FIGURE 2 in Phidon abismus sp. nov. from Patagonian forests of Argentina (Blattaria: Pseudophyllodromiidae)

FIGURE 2. Phidon abismus sp. nov. Male. A: Armament of the femurs I, II and III. B: Tegmen and wing longitudinal veins. C: Detail of male genitalia. D: Detail of tergal male modification, dorsal view. E: Frontal view of head. F: Details of pronotum. Abbreviations: L3 ': sclerite, r.o.: rounded outgrowth of the sclerite L3 ', Ts: Tergal specialization, p.l.s.: piliform longer spines.Published as part of <i>Bramardi, Martina A., Moccia, Tobías & Kun, Marcelo E., 2023, Phidon abismus sp. nov. from Patagonian forests of Argentina (Blattaria: Pseudophyllodromiidae), pp. 579-586 in Zootaxa 5297 (4)</i> on page 582, DOI: 10.11646/zootaxa.5297.4.7, <a href="http://zenodo.org/record/8009233">http://zenodo.org/record/8009233</a&gt

Phidon abismus sp. nov. from Patagonian forests of Argentina (Blattaria: Pseudophyllodromiidae)

Bramardi, Martina A., Moccia, Tobías, Kun, Marcelo E. (2023): Phidon abismus sp. nov. from Patagonian forests of Argentina (Blattaria: Pseudophyllodromiidae). Zootaxa 5297 (4): 579-586, DOI: 10.11646/zootaxa.5297.4.7, URL: http://dx.doi.org/10.11646/zootaxa.5297.4.

Modeling and solving the train load planning problem in seaport container terminals

In this paper we present two mathematical formulations and a heuristic approach for the train load planning problem of import containers at a seaport container terminal. The problem consists of determining how to assign a set of containers of different length and weight to the wagons of a train in order to satisfy capacity constraints of both the wagons and the train, while minimizing the rehandling operations in the stocking area where containers are waiting for being loaded on trains and maximizing the train utilization. Some computational results will be reported in the paper in which the heuristic approach is compared with the solution of the mathematical programming formulatio

Fragility of open-topped oil storage tanks under wind in Patagonia

Oil storage tank farms are complex systems and the eventual failure of one of their components could affect the whole system. A risk assessment requires identifying the magnitude of the damage that can occur under certain load levels. Fragility curves for oil storage tanks with a floating roof are obtained in this work, to estimate the probability of exceeding a given damage state under wind loads. Steel tanks with height-diameter ratio between 0.20 and 0.60 designed with American Petroleum Institute standard 650 are analyzed. The loads are represented by wind-speed and the structural response of the tank is evaluated through computational simulations using finite element analyses. Damage is characterized by deformations in the geometry of the cylinder and wind girder. Damage levels are obtained using linear bifurcation analysis and geometric nonlinear analysis with imperfections, and loads are related to wind speed based on wind data of Patagonia in Argentina. The fragility curves are constructed by means of a log-normal distribution. The results allow establishing ranges of wind speeds for which the damage can affect the integrity of the tank. It is expected that the present results serve as the basis for the development of simplified models, so that a much larger tank database may be considered

Applicability of molecular markers in the context of protection of new varieties of cucumber

The growing number of candidate varieties presented every year at each national Plant Variety Protection Office and their decreasing genetic variability forces strategies to be adopted that will reduce costs without losing rigour when deciding about the acceptance or rejection of a candidate variety. Molecular markers have been envisaged as a reliable tool to establish differences, but can molecular markers be used for assessing distinctness? A comparison between a molecular and a morphological characterization of 41 seed samples belonging to 36 cucumber varieties and including several external controls has been carried out to investigate the applicability of molecular markers in the context of distinctness, uniformity and stability (DUS) tests and the protection of new varieties. Both types of character indicate the same relationships among main groups, Dutch and Beth-Alpha types, and Gerking and Slice types, the correlation between distance matrices being only 0.6489. Varieties considered uniform for morphological traits proved not to be so for molecular markers. Therefore, molecular characterization is not offering the same estimates of uniformity and relatedness between varieties as does morphological characterization. External controls were used to establish distinction limits with morphological and molecular dendrograms to focus on those varieties, which were suspiciously similar. The results with cucumber show that molecular identity could be used to assess any lack of distinctness and so corroborate the morphological assessment of candidate varieties. The morphological trait 'type' provides distinct characterization of varieties and the molecular characterization of candidate varieties could be used to design better field experiments to assess distinction within each group of morphological cucumber type

Multi-environmental evaluation for grain yield and its physiological determinants of quinoa genotypes across Northwest Argentina

The quinoa growing region of Northwest Argentina (NWA) shows a strong environmental variability, both seasonal and spatial. In consequence, the site-year combinations in which yield trials are established can complicate quinoa genotypic selection through strong genotype-by-environment interactions (G × E). The magnitude and nature of the genotype (G) and G × E interaction effects for grain yield, its physiological determinants and components, and days-to-flower exhibited by quinoa at NWA were examined in a multi-environment trial involving a reference set of 12 genotypes tested in six environments. The tested genotypes were selected based on their known contrasting relative performance to environments and different geographical origin. They represent three out of the four genotypic groups identified in previous studies. The G × E interaction to G component of variance was 3:1, 30:1 and 1.3:1 for grain yield, harvest index and grain number, respectively. Conversely, the G effect was large for biomass, grain weight and days-to-flower. Two-mode pattern analysis of the double-centred matrix for grain yield revealed four genotypic groups with different response pattern across environments. This clustering which separates genotypes from Highlands and Valleys showed a close correspondence with the genotypic groups previously proposed based on phenotypic and genetic characterization. On the other hand, a strong and repeatable negative association was observed between Highland and Valley sites, in terms of their G × E interaction effects. Phenological variation among genotypes in combination with environmental differences in the incidence of mildew or frost risk gave rise to significant crossover yield responses to site changes and determined specific adaptation to different ecological conditions. All yield components and determinants were involved in the genotype-specific yield responses. The genotypic variability observed for time to flowering determined the form of the G × E interactions observed for total above-ground biomass in Valley Environments, while in the Highland sites, harvest index made a significant contribution. On the other hand, grain number was the major component in grain yield determination, while grain weight showed a weak to strongly negative association with grain number across both types of environment. In this sense, the future breeding programs in NWA region should focus on these physiological attributes underlying grain yield variation among genotypes across groups of environments for faster genetic progress.Fil: Curti, Ramiro Nestor. Universidad de Buenos Aires. Facultad de Agronomia. Departamento de Producción Vegetal. Cátedra de Produccion Vegetal; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Salta; ArgentinaFil: de la Vega, A. J.. DuPont Pioneer; EspañaFil: Andrade, A. J.. Instituto Nacional de Tecnologia Agropecuaria. Centro Regional Salta-Jujuy; ArgentinaFil: Bramardi, Sergio Jorge. Universidad Nacional de La Plata. Facultad de Ciencias Agrarias y Forestales; Argentina. Universidad Nacional del Comahue. Facultad de Ciencis Agrarias; ArgentinaFil: Bertero, Hector Daniel. Universidad de Buenos Aires. Facultad de Agronomia. Departamento de Producción Vegetal. Cátedra de Produccion Vegetal; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentin