MEJÍAS GIMENO , José Antonio

Descripción de la nueva especie Sonchus boulosii Chamboul., Mejías & J.F. Léger y de Sonchus L. sectio Pulvinati S.C. Kim, Mejías & Chamboul. Incluye descripción morfológica, análisis filogenético, estudio cromosómico, sistemática, consideraciones evolutivas y biogeográficas

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Ministerio de Economía y competitividad. Plan Nacional de Investigación

De todas las tribus integrantes de la familia asteráceas, la más facilmente reconocible es la tribu Lactuceae, que cuenta con un centro de diversificacion importante en la cuenca mediterránea. Entre sus componentes, los géneros Aetheorhiza, Cicerbita, Lactuca, Launaea, Mycellis, Prenanthes, Reichardia y Sonchus constituyen un grupo muy...

Ministerio de Economía y competitividad. Plan Nacional de Investigación

1.Flora_Iberica-Lactuca.perennis.xls; 2.Flora_Iberica-Lactuca.viminea.xls; 3.Flora_iberica-Localidades_Lactuca.viminea.doc; 4.Flora_Iberica-Sonchus.bulbosus.xls

Registro de 24 caracteres (12 cuantitativos y 12 cualitativos), considerados de interés en la literatura taxonómica para la discriminación de Lactuca livida y L. virosa. El estado de los caracteres se registró en 164 pliegos

An important goal of taxonomy is to clarify the identity of ambiguous taxa. Since lineage divergence usually involves ecological shifts that are associated with plant morphology, we propose that searching for fixed, non-overlapping morphological characters and specific associations of features should be the first task in disambiguation. We...

An ab initio density functional theory and a polarizable continuum model were used to calculate the hydration enthalpy and Gibbs free energy of proton and hydroxide. The proton hydration enthalpy data is found to be in agreement with the results from cluster-ion solvation data. It was found that the effect of adding explicit hydration molecules...

An important goal of taxonomy is to clarify the identity of ambiguous taxa. Since lineage divergence usually involves ecological shifts that are associated with plant morphology, we propose that searching for fixed, non-overlapping morphological characters and specific associations of features should be the first task in disambiguation. We...

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The thermodynamic analysis and structural properties of three angular models was presented. Monte Carlo simulations were performed to the fluids made of nonpolar angular αβγ molecules in the NVT ensemble. The first model presented is an angular model of propane. The second model consists of nonsymmetrical molecules and third molecule is a...

The complete chloroplast genome sequences of newly discovered cliff-dwelling species of Sonchus, S. boulosii, were reported in this study. The S. boulosii plastome was 152,016 bp long, with the large single copy (LSC) region of 83,988 bp, the small single copy (SSC) region of 18,566 bp, and two inverted repeat (IR) regions of 24,731 bp. The...

Species of Sonchus section Pustulati (Sonchus masguindalii, Sonchus fragilis and Sonchus pustulatus) constitute a group of endemic cliff plants in the Mediterranean region, restricted to narrow non-overlapping areas within the Baetic-Rifan hotspot of plant species diversity. S. pustulatus occurs both in SE Spain and N Africa, whereas the other...

The mating systems of species in small or fragmented populations impact upon their persistence. Small self-incompatible (SI) populations risk losing S allele diversity, responsible for the SI response, by drift thereby limiting mate availability and leading to population decline or SI system breakdown. But populations of relict and/or endemic...

Morfología polínica de Lactuceae (Asteraceae) en la Península Ibérica. 1. Lactuca L. y géneros relacionados. Se estudia la morfología del polen de los taxones incluidos en los géneros Lactuca L., Prenant hes L., Cicerbita Wallr. y Mycelis Cass. que habitan en la Península Ibérica con los microscopios óptico (MO) y electrónico de barrido (MEB)....

Ha cambiado de ed. a partir de 2006. No existe la antigua ed.

FEDER-CICYT IFD97-O743-CO3-03

We studied the morphological variability of Sonchus asper (L.) Hill in the western Mediterranean region by means of multivariate analysis. A two-step clustering method indicated that selection of a two-cluster model was optimal, with anther length and ligule length as the main characters contributing to cluster delimitation. These variables...

Reichardia Roth is a small Mediterranean genus comprising ten homogeneous species with basic chromosome numbers of 7, 8, and 9. To assess the plastid genome evolution and diferentiation of Reichardia species, we assembled the complete plastome sequences of seven Reichardia and two Launaea species and conducted various phylogenomic analyses...