Se presenta un catálogo de las plantas vasculares que crecen en Chile. Está organizado por divisiones, Pteridophyta (Lycopodiopsida y Polypodiopsida), Pinophyta (Gnetopsida Pinopsida) Magnoliophyta (Liliopsida Magnoliopsida), dentro cada grupo, jerarquías taxonómicas (Familia, Género, Especies taxones infraespecíficos) están ordenados alfabéticamente. incluye además índice alfabético géneros con indicación la familia grupo a pertenecen. De acuerdo este flora Chile, comprende 186 familias,...

The level and apportionment of allozyme diversity were determined for 29 endemic (and 1 native) species from the Juan Fernández Islands, Chile. Mean diversities at (H(es) = 0.065) are low but comparable to those measured other insular endemics in Pacific. A high mean proportion (0.338) species-level resides among populations. Diversity statistics compared different ecological-life history trait categories abundance classes. Species occurring large populations present scattered small have...

Adaptive radiation is a common mode of speciation among plants endemic to oceanic islands. This pattern one cladogenesis, or splitting the founder population, into diverse lineages in divergent habitats. In contrast, species have also evolved primarily by simple transformations from progenitors source regions. anagenesis, whereby founding population changes genetically and morphologically over time through mutation recombination. Gene flow populations maintained homogeneous environment with...

The endemic tree Nothofagus alessandrii (Fagaceae) has been historically restricted to the coastal range of Region VII central Chile, and its forests have increasingly destroyed fragmented since end 19th century. In this study, patterns within- among-population genetic diversity in seven fragments endangered narrowly were examined. Allozyme electrophoresis loci N. was used estimate diversity, structure gene flow. High levels found as shown by mean expected heterozygosity (He = 0·182 ±...

Abstract Aim Past climatic and geological events can be used to interpret present distributions of organisms. We use chronological spatial analyses the species Myrceugenia in southern South America help explain their distribution. Location Southern (Argentina, Brazil, Chile, Paraguay Uruguay). Methods Chronological were completed for tribe Myrteae (Myrtaceae) using two nuclear DNA sequences genus four chloroplast sequences. A biogeographical analysis was carried out. Based on calibration...

Abstract Alstroemeria is a genus endemic to South America, with wide distribution in Brazil and Chile. There are many taxonomic uncertainties or species complexes that make its taxonomy complicated. This of enormous importance ornamental horticulture one the most important as cultivation cutting plants. In Chile, there 39 11 complexes, being them werdermannii, which presents two geographically separated varieties recognized for their distinct flower morphology coloration differences. The...

This study analyses and compares the genetic signatures of anagenetic cladogenetic speciation in six species genus Robinsonia (Asteraceae, Senecioneae), endemic to Juan Fernández Islands, Chile. Population structure was analyzed by amplified fragment length polymorphism (AFLP) microsatellite (simple sequence repeat, SSR) markers from 286 320 individuals, respectively, 28 populations. Each is genetically distinct. Previous hypotheses classification among these into subgenera sections, via...

Diez diterpenos, ferruginol (1a), hinokiol (1b), hinokione (1c), totarol (2a), totarodiol (2b), totarolone (2c), abietatriene (3), 6,7-dehydroferruginol (4), isopimarol (5) and acetylferruginol (6), fueron aislados desde la madera y corteza de cuatro especies familia Podocarpaceae. La estructura estos compuestos fue determinada mediante metodos espectroscopicos. Se determino actividad antimicrobiana siete frente a las bacterias: Bacillus brevis, B. subtilis, Escherichia coli, Micrococcus...

Liquid composite molding (LCM) is an increasingly used family of processes to manufacture parts. In LCM, the fibrous reinforcement first laid in a mold cavity. After closure or covering with plastic bag, liquid polymer resin injected infused under vacuum through fiber bed. A key issue and novel feature this investigation lies dual-scale architecture engineering fabrics: microscopic pores exist between filaments tows, while macroscopic are created tows as result stitching/weaving process. On...

Genetic diversity within and among Chilean Araucaria araucana populations was estimated using allozyme variability. A total of 537 individuals were sampled from nine populations. Twelve loci scored in all used for analyses. In general, the genetic variability A. high as shown by mean expected heterozygosity ( H E = 0.151), percentage polymorphic P 91.7%), number alleles per locus 1.73) 2.4). Although most this variation S an important proportion T 0.212) population G ST 0.287). To analyze...

Alstroemeria L. (Alstroemeriaceae) is an American genus of monocots with two principal distribution centers in Chile and Brazil. In Chile, it represented by about 32 species, most them central area known for its high level endemism. The "complex" Alstroemeriahookeri endemic to where distributed from the Coquimbo Bío-Bío Region. We analyzed karyotypes 36 populations this complex along natural distribution. Ten metaphases per population were used chromosome measurements. All subspecies...

Alstroemeria L., one of the most diverse genera Chilean flora and high floricultural value, is represented by 35 species, them distributed between 28-38° S in Mediterranean zone Central Chile. There are 24 complex-forming taxa, which 18 have conservation problems (8 considered "endangered" 10 as "vulnerable"). One these complexes presliana Herb. with two subspecies: subsp. australis Bayer. grows Chile Argentina: from Reserva Nacional Siete Tazas (35°27' S, Region Maule) to Antuco, (37°25'...

A common mode of speciation in oceanic islands is by anagenesis, wherein an immigrant arrives and through time transforms mutation, recombination, drift into a morphologically genetically distinct species, with the new species accumulating high level genetic diversity. We investigate Drimys confertifolia, endemic to two major Juan Fernández Archipelago, Chile, determine consequences examine relationships among populations D. confertifolia continental winteri andina, test probable migration...

Anagenesis (or phyletic evolution) is one mode of speciation that occurs in the evolution plants on oceanic islands. Of two endemic species Juan Fernández Islands (Chile), Myrceugenia fernandeziana and M. schulzei (Myrtaceae), believed to have originated anagenetically from different continental progenitors, first Robinson Crusoe Island has no clear tie relatives; last younger island, Alejandro Selkirk Island, close affinity colchaguensis mainland Chile.Using AFLPs six nuclear...

Abstract Mathewsia (6 spp.) and Schizopetalon (10 are sister genera of the tribe Schizopetaleae (Brassicaceae, Cruci ferae). The mostly endemic to Chile neighboring areas Peru Argentina, with most species growing in hyperarid Atacama Desert adjacent areas. This geographic distribution presence different life forms (perennial) (annual) provide opportunity compare patterns diversification under ex treme environmental pressure. In this paper, phylogenetic relationships estimated for 17 using a...

Abstract Sixteen populations and 89 individuals of Lactoris fernandeziana were examined for variation in intersimple sequence repeat (ISSR) banding patterns. The species is a rare endemic Masatierra Island the Juan Fernández Archipelago, only member family Lactoridaceae. Five showed single genotype whereas other 11 had from two to 16 multilocus genotypes. Over 73% ISSR diversity occurred across populations, with about 27% within populations. Diversity among results presence different subsets...

Understanding the basis of genetic variations responsible for complex traits found in Eucalyptus cladocalyx under arid environmental conditions is crucial designing architecture studies. Forty-five half-sib families from Australia were used to identify inter-simple sequence repeat (ISSR) markers that are associated with growth (height, diameter at breast height, and stem straightness), flowering (flowering intensity, precocity, reproductive capacity, late flowering) tree survival southern...

Within a woody plant species, environmental heterogeneity has the potential to influence distribution of genetic variation among populations through several evolutionary processes. In some relationship between characteristics and genotypes can be detected, showing importance natural selection as main source differentiation. Nothofagus dombeyi (Mirb.) Oerst. (Nothofagaceae) is an endemic tree species occurring both in Chile Argentina temperate forests. Postglacial history been studied with...

RESUMENSe entregan datos citológicos del número cromosómico diploide de 24 especies la flora vascular Chile, utilizándose material raíces provenientes plántulas.Nuevos registros para Chile son: Alstroemeria presliana Herb.subsp.presliana (2n = 16), Chaetanthera moenchioides Less.(2n 26), Hypochaeris scorzonerae (DC.)F.Muell.(2n 8), Phycella bicolor (Ruiz et Pav.) Herb.(2n 16) y Rhodophiala tiltilensis (Traub Moldenke) Traub 16).