433 research outputs found
Molecular support for the recognition of the Mycoblastus fucatus group as the new genus Violella (Tephromelataceae, Lecanorales)
No full textThe crustose lichen genus Mycoblastus in the Northern Hemisphere includes eight recognized species sharing large, simple ascospores produced 1–2 per ascus in strongly pigmented biatorine apothecia. The monophyly of Mycoblastus and the relationship of its various species to Tephromelataceae have never been studied in detail. Data from ITS rDNA and the genes coding for translation elongation factor 1- and DNA replication licensing factormini-chromosome maintenance complex 7 support the distinctness of Mycoblastus s. str. from the core of the Tephromelataceae, but recover M. fucatus and an undescribed Asian species as strongly supported within the latter group. We propose accommodating these two species in a new genus, Violella, which is characterized by its brownish inner ascospore walls, Fucatus-violet hymenial pigment granules and secondary chemistry, and discuss the position of Violella relative to Calvitimela and Tephromela. We describe the new species Violella wangii T. Sprib. & Goffinet to accommodate a new species with roccellic acid from Bhutan, China, India and the Russian Far East. We also exclude Mycoblastus indicus Awasthi & Agarwal from the genus Mycoblastus and propose for it the new combination Malmidea indica (Awasthi & Agarwal) Hafellner & T. Sprib
FILOGENESI delle BRIOFITE: Sistematica e Caratteristiche delle Piante terrestri non vascolari (Muschi, Epatiche, Antocerote) Versione italiana di: COLE T.C.H., HILGER H.H., GOFFINET B. (2019) Bryophyte Phylogeny Poster.
No full textAlbero ipotetico basato su dati di filogenesi molecolare; lunghezza dei rami arbitraria, non corrispondente alla reale scala temporale; la posizione di diversi caratteri sull’albero è incerta; alcuni ordini e famiglie sono stati omessi; i caratteri elencati non sono necessariamente applicati a tutti i componenti del rispettivo clade
Phylogenetic inferences in the dung-moss family splachnaceae from analyses of CPDNA sequence data and implications for the evolution of entomophily
No full textThe moss family Splachnaceae is characterized by half of its members relying on insects for spore dispersal. These species grow on dung or other animal substrates. They produce small and aggregated spores, and their capsule is modified to attract coprophilous insects or carrion flies using olfactory and visual cues. Systematic concepts and implicit evolutionary inferences have relied much on variation in characters associated with the spore dispersal syndrome. Phylogenetic reconstructions based on sequence variation of two chloroplast loci (trnL-trnF region and the rps4 gene) suggest that most supraspecific taxa are poly- or paraphyletic. Transformations in morphological characters associated to the syndrome thus offer little if any phylogenetically informative signal. Brachymitrion is resolved in a nested position within Tayloria. A new combination, Tayloria immersa (Goffinet) Goffinet, Shaw & Cox is proposed for B. immersum. Only one of the five subgenera of Tayloria (subg. Orthodon) is potentially monophyletic. Voitia shares a common ancestor with Tetraplodon and is thus nested within the Splachnoideae. The affinities of Aplodon remain ambiguous. Reconstruction of shifts between wind and insect spore dispersal syndromes suggests that entomophily arose more than once and may have been followed by a reversal to the generalist strategy in two lineages
Variation in performance of beech saplings of 7 European provenances under shade and full light conditions
No full textThe use of beech seedlings from South-East European and North-West (NW) provenances for underplanting in coniferous forests in North-West Europe was investigated by means of experimental shading. The effects of this treatment on survival, morphology, phenology, physiology and growth were analysed by applying an individual plant growth model integrating these aspects. It was concluded that plant performance under full-light conditions are representative of shaded conditions, so good performing provenances can be selected in a field situation. It was further concluded that good performing South-East European seedlings can be used in North-West European conditions. The modelling results indicated an interesting trade-off between height growth and biomass increase and different provenances show different strategies. This allows selection of suitable provenances for specific situations, e.g. when beech seedlings need to compete with other plant species in the understorey
A revised checklist of Hawaiian mosses
No full textA revised and updated literature-based checklist of Hawaiian mosses is presented. Geographic coverage includes the eight main Hawaiian Islands; the Northwestern Hawaiian Islands are excluded. The checklist is alphabetically ordered by scientific names; the family is noted for each genus. Synonyms and misapplied names are cross-referenced to the accepted names. A bibliography of supporting references is included
Lewinskya, a new genus to accommodate the phaneroporous and monoicous taxa of Orthotrichum (Bryophyta, Orthotrichaceae)
No full textThis research was supported by the Spanish Ministries of Education and Science (CGL2007-61389/BOS), Science and Innovation (CGL2011–28857/BOS), and Economy and Competitiveness (CGL2013–43246–P). Support to BG was provided by NSF grants DEB-1146295 & 1240045.Molecular analyses have consistently evidenced the phylogenetic heterogeneity of Orthotrichum Hedw., and suggested the need to segregate the species with superficial stomata in a separate genus. A recent proposal has been made to accommodate the monoicous species with such stomata in the genus Dorcadion Adans. ex Lindb., which is, however, an illegitimate name according to the current Code of nomenclature of algae, fungi and plants. Consequently a new name is required, and the generic name Lewinskya F.Lara, Garilleti & Goffinet is proposed. New combinations are made for all the species included in the new genus. Given the long history of the genus Orthotrichum and the similarities between this genus and Lewinskya, the morphological and geographic circumscriptions of both genera are provided to define them accurately. The taxa remaining in Orthotrichum s.str. are also listedMinisterio de Educación y Ciencia (España)Ministerio de Economía y Competitividad (España)Ministerio de Ciencia, Innovación y Universidades (España)National Science FoundationDepto. de Biodiversidad, Ecología y EvoluciónFac. de Ciencias BiológicasTRUEpu
Zoledronic acid treatment impairs protein geranyl-geranylation for biological effects in prostatic cells-5
No full text<p><b>Copyright information:</b></p><p>Taken from "Zoledronic acid treatment impairs protein geranyl-geranylation for biological effects in prostatic cells"</p><p>BMC Cancer 2006;6():60-60.</p><p>Published online 15 Mar 2006</p><p>PMCID:PMC1434759.</p><p>Copyright © 2006 Goffinet et al; licensee BioMed Central Ltd.</p> to the medium for 2 hours more. Sterols were separated by thin layer chromatography (silica gel F/ethyl acetate). [C]-Cholesterol was revealed and quantified by autoradiography with Phophorimager(Molecular Dynamics)
Zoledronic acid treatment impairs protein geranyl-geranylation for biological effects in prostatic cells-4
No full text<p><b>Copyright information:</b></p><p>Taken from "Zoledronic acid treatment impairs protein geranyl-geranylation for biological effects in prostatic cells"</p><p>BMC Cancer 2006;6():60-60.</p><p>Published online 15 Mar 2006</p><p>PMCID:PMC1434759.</p><p>Copyright © 2006 Goffinet et al; licensee BioMed Central Ltd.</p>, the cells were serum-starved till fixation on D. After treatment by the indicated drugs then stimulation by LPA (20 μM, 5 hours on D), actin fibers were visualized by tetramethylrhodamine isothiocyanate-labeled phalloidin. Cells are viewed on a Zeiss Axiophot microscope (X 630), and pictures are taken with a Princeton camera
Zoledronic acid treatment impairs protein geranyl-geranylation for biological effects in prostatic cells-3
No full text<p><b>Copyright information:</b></p><p>Taken from "Zoledronic acid treatment impairs protein geranyl-geranylation for biological effects in prostatic cells"</p><p>BMC Cancer 2006;6():60-60.</p><p>Published online 15 Mar 2006</p><p>PMCID:PMC1434759.</p><p>Copyright © 2006 Goffinet et al; licensee BioMed Central Ltd.</p> (0.5 μM, 8–10 Ci/mmol) incorporation into a mutant form of H-ras with a geranyl-geranylation CAXX box. The level of prenylation is expressed as a percentage of maximum incorporation of [H]-prenyl, as determined by allowing the uninhibited reaction to go to completion. : Western-blot analysis; PC-3 cells are treated by vehicle, ZOL 20 μM; ZOL 20 μM + FOH 10 μM; ZOL 20 μM + GGOH 10 μM
Construction of an integrated consensus map of the Apple genome based on four mapping populations
No full textAn integrated consensus genetic map for apple was constructed on the basis of segregation data from four genetically connected crosses (C1¿=¿Discovery × TN10-8, C2¿=¿Fiesta × Discovery, C3¿=¿Discovery × Prima, C4¿=¿Durello di Forli × Fiesta) with a total of 676 individuals using CarthaGene® software. First, integrated female¿male maps were built for each population using common female¿male simple sequence repeat markers (SSRs). Then, common SSRs over populations were used for the consensus map integration. The integrated consensus map consists of 1,046 markers, of which 159 are SSR markers, distributed over 17 linkage groups reflecting the basic chromosome number of apple. The total length of the integrated consensus map was 1,032 cM with a mean distance between adjacent loci of 1.1 cM. Markers were proportionally distributed over the 17 linkage groups (¿ 2¿=¿16.53, df¿=¿16, p¿=¿0.41). A non-uniform marker distribution was observed within all of the linkage groups (LGs). Clustering of markers at the same position (within a 1-cM window) was observed throughout LGs and consisted predominantly of only two to three linked markers. The four integrated female¿male maps showed a very good colinearity in marker order for their common markers, except for only two (CH01h01, CH05g03) and three (CH05a02z, NZ02b01, Lap-1) markers on LG17 and LG15, respectively. This integrated consensus map provides a framework for performing quantitative trait locus (QTL) detection in a multi-population design and evaluating the genetic background effect on QTL expression
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