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Dataset results
21 results for “Euphrasia”
Herbarium specimen image of Euphrasia iranica O. Schwarz & Bornm., part of the collection of Botanic Garden and Botanical Museum Berlin
Part of a training dataset of scanned herbarium specimens. The data paper and a summary landing page will be published on Zenodo as it gets published.<br><br>Content of this deposition:<br><br>- A JSON-LD datafile listing the label data associated with this herbarium specimen. The Darwin and Dublin Core data standards are used for most values.<br>- A JPEG image file of the scanned herbarium sheet.<br>- A lossless TIFF image from which the JPEG image has been derived.
Herbarium specimen image of Euphrasia iranica O. Schwarz & Bornm., part of the collection of Botanic Garden and Botanical Museum Berlin
Part of a training dataset of scanned herbarium specimens. The data paper and a summary landing page will be published on Zenodo as it gets published.<br><br>Content of this deposition:<br><br>- A JSON-LD datafile listing the label data associated with this herbarium specimen. The Darwin and Dublin Core data standards are used for most values.<br>- A JPEG image file of the scanned herbarium sheet.<br>- A lossless TIFF image from which the JPEG image has been derived.
Herbarium specimen image of Euphrasia stricta var. tenuis (Brenner) J.Jalas, part of the collection of Natural History Museum, University of Tartu
Part of a training dataset of scanned herbarium specimens. The data paper and a summary landing page will be published on Zenodo as it gets published.<br><br>Content of this deposition:<br><br>- A JSON-LD datafile listing the label data associated with this herbarium specimen. The Darwin and Dublin Core data standards are used for most values.<br>- A JPEG image file of the scanned herbarium sheet.<br>- A lossless TIFF image from which the JPEG image has been derived.
Herbarium specimen image of Euphrasia nemorosa (Pers.) Wallr., part of the collection of Natural History Museum, University of Tartu
Part of a training dataset of scanned herbarium specimens. The data paper and a summary landing page will be published on Zenodo as it gets published.<br><br>Content of this deposition:<br><br>- A JSON-LD datafile listing the label data associated with this herbarium specimen. The Darwin and Dublin Core data standards are used for most values.<br>- A JPEG image file of the scanned herbarium sheet.<br>- A lossless TIFF image from which the JPEG image has been derived.
Herbarium specimen image of Euphrasia stricta var. stricta, part of the collection of Natural History Museum, University of Tartu
Part of a training dataset of scanned herbarium specimens. The data paper and a summary landing page will be published on Zenodo as it gets published.<br><br>Content of this deposition:<br><br>- A JSON-LD datafile listing the label data associated with this herbarium specimen. The Darwin and Dublin Core data standards are used for most values.<br>- A JPEG image file of the scanned herbarium sheet.<br>- A lossless TIFF image from which the JPEG image has been derived.
Fig. 1 in Euphrasia cisalpina Pugsley (Orobanchaceae) nella Brughiera di Gallarate (Lombardia, Italia): dati storici e conferma della stazione nelle aree verdi dell'Aeroporto di Milano Malpensa
Fig. 1 - Euphrasia cisalpina Pugsley (eufrasia del Ticino / Tessin Eyebright) all'Aeroporto di Milano Malpensa / in the Milano Malpensa Airport. (Foto / Photo M. Martignoni; a sinistra 9 ottobre 2010, a destra 19 settembre 2013 / left 9th October 2010, right 19th September 2013).
Fig. 3 in Euphrasia cisalpina Pugsley (Orobanchaceae) nella Brughiera di Gallarate (Lombardia, Italia): dati storici e conferma della stazione nelle aree verdi dell'Aeroporto di Milano Malpensa
Fig. 3 - Carta dell'area gallaratese con idrografia semplificata e indicazione dei toponimi citati nel testo. ●: recenti rinvenimenti di E. cisalpina all'interno dell'Aeroporto di Milano Malpensa; le barre nere indicano le piste di volo. / Map of the Gallarate area with simplified hydrography and indication of the toponyms cited in the text. ●: recent records of E. cisalpina in the Milano Malpensa Airport; the black bars are the runways.
Fig. 2 in Euphrasia cisalpina Pugsley (Orobanchaceae) nella Brughiera di Gallarate (Lombardia, Italia): dati storici e conferma della stazione nelle aree verdi dell'Aeroporto di Milano Malpensa
Fig. 2 - Vegetazione di brughiera all'interno dell'Aeroporto di Milano Malpensa. / Heathland in the Milano Malpensa Airport. (Foto / Photo M. Martignoni, 19 Settembre 2013 / 19th September 2013).
Genome-wide differentiation by geography not species in taxonomically complex eyebrights (Euphrasia)
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Is there hybridisation between diploid and tetraploid Euphrasia in a secondary contact zone?
<p>• Premise of the study: Hybridisation between species with contrasting ploidy is usually considered rare in nature due to strong ploidy related postzygotic reproductive isolating barriers. However, genomic sequencing has revealed previously overlooked examples of natural cross-ploidy hybridisation, suggesting this phenomenon may be more common than once thought. Here, we investigate potential cross-ploidy hybridisation in British eyebrights (Euphrasia, Orobanchaceae), a group where thirteen putative cross-ploidy hybrid combinations have been reported based on morphology. • Methods: We analysed a contact zone between diploid E. rostkoviana and tetraploid E. arctica in Wales. We sequenced part of the internal transcribed spacer of nuclear ribosomal DNA (ITS1) and used Genotyping by Sequencing (GBS) to look for evidence of cross-ploidy hybridisation and introgression. • Key results: All variant sites in the ITS1 region were fixed between diploids and tetraploids, indicating a strong barrier to hybridisation. Clustering analyses of 356 SNPs generated using GBS clearly separated samples by ploidy and revealed strong genetic structure (FST = 0.44). However, the FST distribution across all SNPs was bimodal, indicating potential differential selection on loci between diploids and tetraploids. Demographic inference with dadI suggested potential gene flow – with this limited to around one or fewer migrants per generation. • Conclusions: Our results suggest recent cross-ploidy hybridisation is rare or absent in a site of secondary contact in Euphrasia. While a strong ploidy barrier prevents hybridisation over ecological time-scales, such hybrids may form in stable populations over evolutionary time-scales and may allow for cross-ploidy introgression to take place.</p>
Is there hybridisation between diploid and tetraploid Euphrasia in a secondary contact zone?
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The postglacial history of Euphrasia micrantha in Scotland: evidence from genome skimming
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Data from: Pervasive phylogenomic incongruence underlies evolutionary relationships in eyebrights (Euphrasia, Orobanchaceae)
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Life history evolution, species differences and phenotypic plasticity in hemiparasitic eyebrights (Euphrasia)
<p><span>Premise of the study: Species delimitation in parasitic organisms is challenging as traits used in the identification of species are often plastic and vary depending on the host. Here, we use species from a recent radiation of generalist hemiparasitic <i>Euphrasia</i> to investigate trait variation and trait plasticity. We test whether <i>Euphrasia</i> species show reliable trait differences, investigate whether these differences correspond to life history trade-offs between growth and reproduction, and quantify plasticity in response to host species.<br> Methods: We perform common garden experiments to evaluate trait differences between eleven <i>Euphrasia</i> taxa grown on a common host, document phenotypic plasticity when a single <i>Euphrasia</i> species is grown on eight different hosts, and relate our observations to trait differences recorded in the wild.<br> Key results: <i>Euphrasia</i> exhibit variation in life history strategies; some individuals transition rapidly to flower at the expense of early season growth, while others invest in vegetative growth and delay flowering. Life history differences are present between some species, though many related taxa lack clear-cut trait differences. Species differences are further blurred by phenotypic plasticity—many traits are plastic and change with host type or between environments.<br> Conclusions: Phenotypic plasticity in response to host and environment confounds species delimitation in <i>Euphrasia</i>. When grown in a common garden environment it is possible to identify some morphologically distinct taxa, though others represent morphologically similar shallow segregates. Trait differences present between some species and populations demonstrates the </span>rapid evolution of distinct life history strategies in response to local ecological conditions<span>.</span></p>
Coleosporium euphrasiae
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Euphrasia Eye Drops in Preterm Infants With First Signs of Congestion of Nasolacrimal Duct
ClinicalTrials.gov study NCT04122300. IPD Sharing: NO. Countries: 1. Publications: 1.
Data from: Ancestral remnants or peripheral segregates? Phylogenetic relationships of two narrowly endemic Euphrasia species (Orobanchaceae) from the eastern European Alps
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Life history evolution, species differences and phenotypic plasticity in hemiparasitic eyebrights (Euphrasia)
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Fig. 4 in Euphrasia cisalpina Pugsley (Orobanchaceae) nella Brughiera di Gallarate (Lombardia, Italia): dati storici e conferma della stazione nelle aree verdi dell'Aeroporto di Milano Malpensa
Fig. 4 - Popolamento di Euphrasia cisalpina nella brughiera rada dell'Aeroporto di Milano Malpensa. / Euphrasia cisalpina population in the sparse heathland of Milano Malpensa Airport. (Foto / Photo M. Martignoni, 14 giugno 2012 /14th June 2012).
FIGURE 1 in Nomenclatural notes on Euphrasia coerulea Tausch (Orobanchaceae)
FIGURE 1. Details of the lectotype of Euphrasia coerulea Tausch (PRC 455017)
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