A5083527472- Sesquiterpenes and Asteraceae Studies
- Plant Taxonomy and Phylogenetics
- Plant Diversity and Evolution
- Botanical Research and Chemistry
- Genetic diversity and population structure
- Mediterranean and Iberian flora and fauna
- Botany, Ecology, and Taxonomy Studies
- Plant and Fungal Species Descriptions
- Chromosomal and Genetic Variations
- Plant Toxicity and Pharmacological Properties
- Botany and Plant Ecology Studies
- Plant and animal studies
- Natural product bioactivities and synthesis
- Scarabaeidae Beetle Taxonomy and Biogeography
- Plant tissue culture and regeneration
- Botanical Studies and Applications
- Chemical synthesis and alkaloids
- Allelopathy and phytotoxic interactions
- Biological Control of Invasive Species
- Plant and fungal interactions
- Plant Ecology and Taxonomy Studies
- Genetics and Neurodevelopmental Disorders
- Plant and soil sciences
- Essential Oils and Antimicrobial Activity
- Agricultural pest management studies
Instituto de Botanica Darwinion
2013-2023
Consejo Nacional de Investigaciones Científicas y Técnicas
2014-2023
Universidad Nacional de La Plata
1998-2008
We report the phylogeographic pattern of Patagonian and Subantarctic plant Hypochaeris incana endemic to southeastern South America. applied amplified fragment length polymorphism (AFLP) chloroplast DNA (cpDNA) analysis 28 32 populations, respectively, throughout its distributional range assessed ploidy levels using flow cytometry. While cpDNA data suggest repeated or simultaneous parallel colonization Patagonia Tierra del Fuego by several haplotypes and/or hybridization, AFLPs reveal three...
In an attempt to delineate the area of origin and migratory expansion highly successful invasive weedy species Hypochaeris radicata, we analysed amplified fragment length polymorphisms from samples taken 44 populations. Population sampling focused on central western Mediterranean area, but also included sites Northern Spain, Western Central Europe, Southeast Asia South America. The six primer combinations applied 213 individuals generated a total 517 fragments which 513 (99.2%) were...
Hypochaeris is thought to have arrived in South America by dispersal over the Atlantic Ocean from NW Africa during Pliocene or Pleistocene. We used amplified fragment length polymorphism (AFLP) unravel specific limits and relationships American group of (c. 45 species). The Moroccan endemic angustifolia , which sister entire group, was as outgroup. Our AFLP analysis comprises 415 individuals 32 species based on six primer combinations with 670 fragments scored. It provides important...
Abstract In order to elucidate the biotic diversification of Asteraceae inhabiting South American Transition Zone, we undertook a panbiogeographic analysis (based on parsimony endemicity) and cladistic biogeographic analysis. The study units were six provinces this zone plus seven subregions Neotropical Andean regions, considered as “outgroups”. Species analyzed belonged genera Arnaldoa, Barnadesia, Belloa, Berroa, Chevreulia, Chuquiraga, Cuatrecasiella, Dasyphyllum, Doniophyton, Duseniella,...
One hundred and thirty-seven new chromosome counts are reported from 104 populations of 26 native South American taxa Hypochaeris (Asteraceae, Lactuceae), together with two invasive Mediterranean species: H. glabra radicata. First reports provided for seven (H. alba, cf. eremophila, caespitosa, hookeri, parodii, patagonica pinnatifida) one ploidy level is (diploid incana, so far known only as a tetraploid). Including the results this study, chromosomes 39 c. 50 species New World have now...
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).
Summary Urtubey, E. & Stuessy, T. F.: New hypotheses of phylogenetic relationships in Barnadesioideae (Asteraceae) based on morphology. ‐ Taxon 50: 1043–1066. 2001. — ISSN 0040–0262. Previous molecular sequence and restriction site data have confirmed subfamily as basal within Asteraceae. The consists 88 species nine genera: Arnaldoa, Barnadesia, Chuquiraga, Dasyphyllum, Doniophyton, Duseniella, Fulcaldea, Huarpea , Schlechtendalia. Two morphological cladistic analyses among genera or...
A taxonomic revision of Oxalis section Palmatifoliae is presented, together with cluster analyses to clarify the limits species. This monophyletic includes five species endemic from Southern Argentina and Chile. key for species, descriptions, illustrations, synonymy, geographical distribution each are also provided. Five lectotypifications two new synonymies proposed.
KM, https://orcid.org/0000-0002-7658-0844; JK, https://orcid.org/0000-0002-9983-7630; EMdA, https://orcid.org/0000-0001-8033-5334; LIFA, https://orcid.org/0000-0002-4182-911X; CAB, https://orcid.org/0000-0001-6412-6700; CMB, https://orcid.org/0000-0001-9546-5721; EVB, https://orcid.org/0000-0003-1314-8429; FRCB, https://orcid.org/0000-0003-3868-1131; NIC, https://orcid.org/0000-0003-4739-6885; OAC, https://orcid.org/0000-0003-0801-8961; MCD, https://orcid.org/0000-0002-2981-0328; ASE,...
Abstract We performed an integrated phylogeographical and palaeoclimatic study of early-diverging member Asteraceae, Duseniella patagonica, endemic to Argentina. Chloroplast nuclear markers were sequenced from 106 individuals belonging 20 populations throughout the species range. analysed genetic spatial distribution, diversity structure, tested for range expansion, estimated divergence times, reconstructed ancestral areas modelled present past distributions based on climatic data. diverged...
Hypochaeris is an excellent system for studying different modes of chromosome evolution in plants.We carried out a cytogenetic analysis on populations 2 species, comprising 10 H. catharinensis and 5 lutea, to assess possible changes organization this interesting genus.Conventional Feulgen staining fluorescent banding revealed that the general aspects morphology all both species were similar, evidence typical bimodal karyotypes with 2n = 8 chromosomes characterize South American...