A5038320470- Plant Taxonomy and Phylogenetics
- Mediterranean and Iberian flora and fauna
- Genetic diversity and population structure
- Plant and animal studies
- Botany and Plant Ecology Studies
- Genetic Mapping and Diversity in Plants and Animals
- Archaeological and Historical Studies
- Chromosomal and Genetic Variations
- Mycorrhizal Fungi and Plant Interactions
- Wheat and Barley Genetics and Pathology
- African Botany and Ecology Studies
- Computational Physics and Python Applications
- Plant Pathogens and Fungal Diseases
- Ecology and Vegetation Dynamics Studies
- Plant and Fungal Species Descriptions
- Employment, Labor, and Gender Studies
- Higher Education Teaching and Evaluation
- Plant Diversity and Evolution
- Genomics and Phylogenetic Studies
- Cinema History and Criticism
- Medieval and Classical Philosophy
- Forensic and Genetic Research
- Science, Technology, and Education in Latin America
- Travel Writing and Literature
- Nuts composition and effects
Universidade da Coruña
2010-2024
Faculdade de Tecnologia e Ciências
2024
Guanacaste Conservation Area
2012-2023
University of Oslo
2013-2017
Brachypodium distachyon is being widely investigated across the world as a model plant for temperate cereals. This annual has three cytotypes (2n = 10, 20, 30) that are still regarded part of single species. Here, multidisciplinary study been conducted on representative sampling to investigate their evolutionary relationships and origins, elucidate if they represent separate Statistical analyses 15 selected phenotypic traits were in individuals from 36 lines or populations. Cytogenetic...
Abstract Conservation of biodiversity may in the future increasingly depend upon availability scientific information to set suitable restoration targets. In traditional paleoecology, sediment‐based pollen provides a means define preanthropogenic impact conditions, but problems establishing exact provenance and ecologically meaningful levels taxonomic resolution evidence are limiting. We explored extent which use sedimentary ancient DNA (sedaDNA) complement data reconstructing past alpine...
Tribe Orchideae (Orchidaceae: Orchidoideae) comprises around 62 mostly terrestrial genera, which are well represented in the Northern Temperate Zone and less frequently tropical areas of both Old New Worlds. Phylogenetic relationships within this tribe have been studied previously using only nuclear ribosomal DNA (nuclear internal transcribed spacer, nrITS). However, different parts phylogenetic tree these analyses were weakly supported, integrating information from plant genomes is clearly...
Chromosome evolution has been demonstrated to have profound effects on diversification rates and speciation in angiosperms. While polyploidy predated some major radiations plants, it also related decreased rates. There comparatively little attention the evolutionary role of gains losses single chromosomes, which may or not entail changes DNA content (then called aneuploidy dysploidy, respectively). In this study we investigate chromosome number transitions possible associated genome size...
Este artigo analisa o papel da assistência estudantil no Instituto Federal de Mato Grosso do Sul (IFMS), a partir Programa Assistência Estudantil (PAES). Como política pública inclusão social, PAES visa promover permanência e êxito acadêmico, oferecendo condições aos estudantes que enfrentam situações vulnerabilidade socioeconômica. A pesquisa, caráter exploratório descritivo, adota uma abordagem quali-quantitativa, fundamentada em revisão bibliográfica análise documental. coleta dados foi...
The Pooideae are a highly diverse C3 grass subfamily that includes some of the most economically important crops, nested within speciose core-pooid clade. Here, we build and explore phylogeny temporal framework, assessing its patterns diversification chromosomal evolutionary changes in light past environmental transformations. We sequenced five plastid DNA loci, two coding ( ndhF , matk ) three non-coding trnH-psbA trnT-L trnL-F ), 163 Poaceae taxa, including representatives for all...
Biodiversity of tropical Saturniidae, as measured through traditionally described and catalogued species, strongly risks pooling cryptic species under one name. We examined the DNA barcodes, morphology, habitus ecology 32 ‘well known’ dry forest saturniid moths from Area de Conservacion Guanacaste (ACG) in north-western Costa Rica found that they contain many 49 biological entities are probably separate species. The most prominent splitting traditional – Eacles imperialis, Automeris zugana,...
Repeated hybridization and/or polyploidization confound classification and phylogenetic inference, multiple colonizations at different time scales complicate biogeographical reconstructions. This study investigates whether such processes can explain long-term controversies in Anthoxanthum, particular its debated relationship to the genus Hierochloë, evolution of conspicuously diverse floral morphology, origins strikingly disjunct occurrences. A hypothesis for recurrent polyploid formation is...
In the present study, several multivariate analyses were carried out to assess taxonomic relationships among European species of genus Anthoxanthum. A total 1787 Anthoxanthum specimens representing all taxa analyzed. Thirty macro-morphological (13 quantitative and 17 qualitative) 29 micro-morphological (7 22 characters considered. First, resemblances between established independently for macro- using Gower's similarity coefficient, represented by means principal coordinates cluster analyses....
Different authors have demonstrated the usefulness of single-copy nuclear genes in unravelling evolution polyploid species' complexes. We used chalcone synthase gene family to analyse relationships among several Dactylorhiza species belonging main diploid and tetraploid lineages this genus evaluate between other orchid genera that traditionally been considered be closely related. Overall, 59 sequences from 19 taxa were analysed using parsimony Bayesian inference. In our results, we recover a...
Abstract In this paper, we use the mitochondrial region cox1 to assess usefulness of marker in addressing evolutionary relationships within tribe Orchideae. Despite low overall variation uncovered region, one good phylogenetic was identified. A large group I intron shared across subtribe Orchidinae and some species Habenariinae sensu Dressler. The clades identified tree were weakly supported, but consistent with previous studies based on nuclear ribosomal spacers (nrITS). Moreover, analysis...
The morphologically diverse annual sweet vernal grasses, Anthoxanthum aristatum and ovatum, have been traditionally classified as separate species, each containing several infraspecific ranks. However, transitional forms between the species commonly found in sympatric populations that present a remarkably high morphological variability. Alternative hypotheses based on hybridization events these two polymorphic Mediterranean or existence of only one highly variable taxon, suggested potential...
Anthoxanthum alpinum Löve & has been described as a diploid perennial distributed in northern Eurasia and the high mountains of central eastern Europe. Difficulties finding reliable morphological differences between this taxon widespread tetraploid odoratum L. have resulted taxonomists treating them conspecific, despite cytological differentiation. The purpose study was to use different approaches assess relationships close congeners, such pair A. odoratum/A. alpinum. Macromorphological,...
High tropical mountains harbour remarkable and fragmented biodiversity thought to a large degree have been shaped by multiple dispersals of cold-adapted lineages from remote areas. Few dated phylogenetic/phylogeographic analyses are however available. Here, we address the hypotheses that sub-Saharan African sweet vernal grasses dual colonization history independent origins established secondary contact. We carried out rangewide sampling across eastern high mountains, inferred phylogenies...
High morphological and ecological diversity has been observed in the north-west Iberian Peninsula endemic Anthoxanthum amarum Brot., for which two different morphotypes (northern southern) have described on basis of qualitative traits geographical origin. In present study, a combined molecular method was applied to ten populations this species with following aims: (1) assess whether variation taxonomically meaningful; (2) influence environment characters; (3) track potential...
The use of molecular tools in red algal diversity surveys often reveals the existence undescribed species. Here, we report a new Macaronesian turf-forming alga otherwise mostly Pacific genus Melanothamnus Bornet & Falkenberg. This taxon, macaronesicus Rodríguez-Buján Díaz-Tapia, sp. nov. is described based on morphological and (rbcL gene) evidence. Morphologically, it differs from other taxa by combination characters that includes its decumbent habit with an extensive system prostrate axes,...
Abstract The orchid Dactylorhiza cantabrica H.A. Pedersen is a narrow endemic occurring in the western Cantabrian Mountains northwest Spain. Previous allozyme and morphological studies suggest that it might have resulted from hybridization of two widespread congeners: triploid insularis diploid sambucina. However, this hypothesis has not been tested using multiple genetic markers necessary to analyze phylogenies complex genera such as . In study, Hyb‐Seq technique applied together with...
An integrative approach combining morphological, molecular and cytological information was used to assess the taxonomy biogeography of Hierochloë section Monoecia. More specifically, we aimed evaluate (1) if morphological data are in concert with current group (2) speciation this exclusively South American could be linked formation Andes. Our analysis 31 macro- micromorphological characters, four plastid nuclear DNA regions, content suggests that taxonomic status several species is not...