Find research datasets worth reusing
Search datasets from major research repositories and use ShareScore to quickly assess how well each record supports discovery, access, and reuse.
1,342
datasets available to search
ShareScore release 0.9.0
Dataset results
1,342 results for “Lichen”
FIGURE 1 in Parmotrema sahyadrica (Parmeliaceae): A new species of parmelioid lichen from Wayanad, Southern Western Ghats, India
FIGURE 1. Parmotrema sahyadrica: A. Thallus; B. Thallus with isidia; C. Thallus showing yellow medulla; D. Lower side of the thallus.
Intermediate results for: Large differences in carbohydrate degradation and transport potential among lichen fungal symbionts
<p><span>Lichen symbioses are thought to be stabilized by the transfer of fixed carbon from a photosynthesizing symbiont to a fungus. In other fungal symbioses, carbohydrate subsidies correlate with reductions in plant cell wall-degrading enzymes, but whether this is true of lichen fungal symbionts (LFSs) is unknown. We predicted genes encoding carbohydrate-active enzymes (CAZymes) and sugar transporters in 46 genomes from the </span><em><span>Lecanoromycetes</span></em><span>, the largest extant clade of LFSs. </span><span>All LFSs possess a robust CAZyme arsenal including enzymes acting on cellulose and hemicellulose, confirmed by experimental assays. However, the number of genes and predicted functions of CAZymes vary widely, with some fungal symbionts possessing arsenals on par with well-known saprotrophic fungi. These results suggest that stable fungal association with a phototroph does not in itself result in fungal CAZyme loss, and lends support to long-standing hypotheses that some lichens may </span><span>augment fixed CO</span><span>2</span><span> with carbon from external sources.</span></p>
Lichen holobionts show compositional structure along elevation
<p>Holobionts are dynamic ecosystems that may respond to abiotic drivers with compositional changes. Uncovering elevational diversity patterns within these microecosystems can further our understanding of community-environment interactions. Here we assess how the major components of lichen holobionts – fungal hosts, green algal symbionts, and the bacterial community – collectively respond to an elevational gradient.</p> <p>We analyze populations of two lichen symbioses, Umbilicaria pustulata and U. hispanica, along an elevational gradient spanning 2100 altitudinal meters and covering three major biomes. Our study shows (i) discontinuous genomic variation in fungal hosts with one abrupt genomic differentiation within each of the two host species, (ii) altitudinally structured bacterial communities with pronounced turnover within and between hosts, and (iii) altitude-specific presence of algal symbionts. Alpha diversity of bacterial communities decreased with increasing elevation. A marked turnover in holobiont diversity occurred across two altitudinal belts: at 11-13°C average annual temperature (here: 800-1200m a.s.l.), and at 7-9°C average annual temperature (here: 1500-1800m a.s.l.). The two observed zones mark a clustering of distribution limits and community shifts. The three ensuing altitudinal classes, i.e. the most frequent combinations of species in holobionts, approximately correspond to the Mediterranean, cool-temperate, and alpine climate zones. We conclude that multitrophic microecosystems, such as lichen holobionts, respond with concerted compositional changes to climatic factors that also structure communities of macroorganisms, e.g. vascular plants.</p>
FIGURE 3 in Coppinsiella extremiorientalis (Teloschistaceae, lichenized Ascomycota), a new species from the Russian Far East and a new genus to the region
FIGURE 3. Geographical distribution of the species of the genus Coppinsiella. Black circles – the newly described C. extremiorientalis, white circles – C. ulcerosa, black triangles – C. substerilis, white squares – C. fiumana, white triangles – C. aff. ulcerosa. Two records of C. ulcerosa in the Southern Hemisphere are not shown. Based on Wetmore (2009), Vondrák et al. (2009, 2013a, 2017), Malíček et al. (2018), and partly on data from GBIF. One icon can combine several localities.
FIGURE 1 in Coppinsiella extremiorientalis (Teloschistaceae, lichenized Ascomycota), a new species from the Russian Far East and a new genus to the region
FIGURE 1. Phylogeny of the genus Coppinsiella based on the Bayesian analysis of nrITS with sequences of the new species included (in bold, with collecting sites and GenBank Accession numbers). Numbers at branches represent posterior probability values ≥ 0.90.
Lichen speciation is sparked by a substrate requirement shift and reproduction mode differentiation
<p>We show that obligate lignicoles in lichenized Micarea are predominately asexual whereas most facultative lignicoles reproduce sexually.AQ1 Our phylogenetic analyses (ITS, mtSSU, Mcm7) together with ancestral state reconstruction show that the shift in reproduction mode has evolved independently several times within the group and that facultative and obligate lignicoles are sister species. The analyses support the assumption that the ancestor of these species was a facultative lignicole. We hypothezise that a shift in substrate requirement from bark to wood leads to differentiation in reproduction mode and becomes a driver of speciation. This is the first example of lichenized fungi where reproduction mode is connected to substrate requirement. This is also the first example where such an association is demonstrated to spark lichen speciation. Our main hypothesis is that obligate species on dead wood need to colonize new suitable substrata relatively fast and asexual reproduction is more effective a strategy for successful colonization.</p>
FIGURE 42. Live individuals. A in The tribe Dysoniini part VI: Phylogeny, biogeography and evolutionary trends of the lichen katydid genera (Orthoptera: Tettigoniidae: Phaneropterinae). Eleventh contribution to the suprageneric organization of Neotropical phaneropterines
FIGURE 42. Live individuals. A. Dissonulichen (Dissonulichen) simplicipes. B. Lichenomorphus sp. C. Dysonia cf. holgeri. D. L. montealegrezi. E. L. berenzini. F. L. carlosmendezi. G. Dysonia sp. H. Q. sharovi. (Photos: A, B and E. J. Monzón. C. L. Huamán. F. M. Martins. H. A. Anker).
FIGURE 40. Character optimization. A. Character 74 in The tribe Dysoniini part VI: Phylogeny, biogeography and evolutionary trends of the lichen katydid genera (Orthoptera: Tettigoniidae: Phaneropterinae). Eleventh contribution to the suprageneric organization of Neotropical phaneropterines
FIGURE 40. Character optimization. A. Character 74. Balancing of the body in a stealthy, slow gait. B. Character 75. Backand-forth rocking of the body (wind mimicry). C. Character 76. Immature stages camouflaged among Cladia and Cladonia lichens.
FIGURE 44. Live individuals. A–B. Hammatofera nodicornis. C in The tribe Dysoniini part VI: Phylogeny, biogeography and evolutionary trends of the lichen katydid genera (Orthoptera: Tettigoniidae: Phaneropterinae). Eleventh contribution to the suprageneric organization of Neotropical phaneropterines
FIGURE 44. Live individuals. A–B. Hammatofera nodicornis. C. Dissonulichen (Dissonulichospinus) diffusus. D. Machimoides cf. peru. E. Machima cf. scalprum. F. Yungasacris peruviensis. G. Quiva (Paraquiva) angieae. (Photos: A, B, D. E. Branco. C. J. Chamorro. D. Chan To. F. R. Hoyer. G. accerfoundation).
FIGURE 34. Lichenomorphus species. Cerci and subgenital plates. A, D, E. L in The tribe Dysoniini part VI: Phylogeny, biogeography and evolutionary trends of the lichen katydid genera (Orthoptera: Tettigoniidae: Phaneropterinae). Eleventh contribution to the suprageneric organization of Neotropical phaneropterines
FIGURE 34. Lichenomorphus species. Cerci and subgenital plates. A, D, E. L. montealegrezi. Habitus in lateral view, cerci and subgenital plates. B–C. L. oscari. F–G. L. berezini. H–I. L. ocraceithorax. J–K. L. fuscifrons. (Figs. H–K. after Costa-Lima & Guitton, 1961).
FIGURE 37. Character optimization 70 in The tribe Dysoniini part VI: Phylogeny, biogeography and evolutionary trends of the lichen katydid genera (Orthoptera: Tettigoniidae: Phaneropterinae). Eleventh contribution to the suprageneric organization of Neotropical phaneropterines
FIGURE 37. Character optimization 70: Lichenomorphic camouflage (L:2, ci: 50, ri: 80). A. Unambiguous assumptions. B. Fast, and C. Slow.
FIGURE 31 in The tribe Dysoniini part VI: Phylogeny, biogeography and evolutionary trends of the lichen katydid genera (Orthoptera: Tettigoniidae: Phaneropterinae). Eleventh contribution to the suprageneric organization of Neotropical phaneropterines
FIGURE 31. Anaphidna species. Cerci in lateral view and subgenital plates. A–B. A. peruana. C–D. A. svetlanae. C–D. A. rubricorpus. G–H. A. rhinoceros. I–J. A. mexicana. K–L. A. obrieni.
FIGURE 30 in The tribe Dysoniini part VI: Phylogeny, biogeography and evolutionary trends of the lichen katydid genera (Orthoptera: Tettigoniidae: Phaneropterinae). Eleventh contribution to the suprageneric organization of Neotropical phaneropterines
FIGURE 30. Anaphidna species. Cerci in lateral view and subgenital plates. A–B. A. hernandezi. C–D. A. osae osae. E–F. A. tarsalis. G–H. A. fasciata I–J. A. bezverkhovi. K–L. A. polestshuki.
FIGURE 26. Dissonulichen s.s. species. A, D–E. D in The tribe Dysoniini part VI: Phylogeny, biogeography and evolutionary trends of the lichen katydid genera (Orthoptera: Tettigoniidae: Phaneropterinae). Eleventh contribution to the suprageneric organization of Neotropical phaneropterines
FIGURE 26. Dissonulichen s.s. species. A, D–E. D. (D) simplicipes s.s. B–C. D. (D) hebardi. F–G. D. (D) minensis. H–I. D. (D) satipo. A. Male habitus in lateral view. B, D, F, H. Cerci. C, E, G, I. Subgenital plates. (Figs. B–E. after Costa-Lima & Guitton, 1960; H–I. after Gorochov, 2012).
FIGURE 27. Paraphidnia species. A–B. P. brevicristata. C–D. P. gallina. E–G. P. tunki. A, C, F in The tribe Dysoniini part VI: Phylogeny, biogeography and evolutionary trends of the lichen katydid genera (Orthoptera: Tettigoniidae: Phaneropterinae). Eleventh contribution to the suprageneric organization of Neotropical phaneropterines
FIGURE 27. Paraphidnia species. A–B. P. brevicristata. C–D. P. gallina. E–G. P. tunki. A, C, F. Head and pronotum in lateral view. B, D, G. Cerci in dorsal view. E. Habitus in lateral view.
FIGURE 28. Anaphidna species. A. A. bezverkhovi. B. A. svetlanae. C–D. A. hernandezi. E. A. osae osae. F. A. tarsalis. G. A. fasciata H. A. bezverkhovi. I. A. verrucosa. J. A. polestshuki. A–B in The tribe Dysoniini part VI: Phylogeny, biogeography and evolutionary trends of the lichen katydid genera (Orthoptera: Tettigoniidae: Phaneropterinae). Eleventh contribution to the suprageneric organization of Neotropical phaneropterines
FIGURE 28. Anaphidna species. A. A. bezverkhovi. B. A. svetlanae. C–D. A. hernandezi. E. A. osae osae. F. A. tarsalis. G. A. fasciata H. A. bezverkhovi. I. A. verrucosa. J. A. polestshuki. A–B. Pronotum in lateral view. C. Habitus in lateral view. D–J. Denticles of upper rostral crest from side.
FIGURE 25. Dissonulichospinus n. subgen. species. A–C. D in The tribe Dysoniini part VI: Phylogeny, biogeography and evolutionary trends of the lichen katydid genera (Orthoptera: Tettigoniidae: Phaneropterinae). Eleventh contribution to the suprageneric organization of Neotropical phaneropterines
FIGURE 25. Dissonulichospinus n. subgen. species. A–C. D. (D) ornatus n. comb. D–E. D. (D) difussa n. comb. F–G. D. (D) elegans. A. Male habitus in lateral view. B, D, F. Cerci. C, E, G. Subgenital plates (Figs. B, C, F, G. after Costa-Lima & Guitton, 1960).
FIGURE 29. Anaphidna species. A. A. peruana. B. A. svetlanae. C–D. A. rubricorpus. E. A. lankesteri. F. A. rhinoceros. G. A. mexicana. H. A. obrieni. I. A. gracielae. J. A. silvai. K. A. quirozi. A–D, F–I in The tribe Dysoniini part VI: Phylogeny, biogeography and evolutionary trends of the lichen katydid genera (Orthoptera: Tettigoniidae: Phaneropterinae). Eleventh contribution to the suprageneric organization of Neotropical phaneropterines
FIGURE 29. Anaphidna species. A. A. peruana. B. A. svetlanae. C–D. A. rubricorpus. E. A. lankesteri. F. A. rhinoceros. G. A. mexicana. H. A. obrieni. I. A. gracielae. J. A. silvai. K. A. quirozi. A–D, F–I. Denticles of upper rostral crest from side.C. Habitus in lateral view. E, J, K. Head and pronotum in lateral view.
FIGURE 33. Dysonia species. A–C. D. holgeri. D–E. D. zikani. F–G. D. pardalis. H–I. D. monticola. J–K. D. melaleuca. L–M. D. alipes. A in The tribe Dysoniini part VI: Phylogeny, biogeography and evolutionary trends of the lichen katydid genera (Orthoptera: Tettigoniidae: Phaneropterinae). Eleventh contribution to the suprageneric organization of Neotropical phaneropterines
FIGURE 33. Dysonia species. A–C. D. holgeri. D–E. D. zikani. F–G. D. pardalis. H–I. D. monticola. J–K. D. melaleuca. L–M. D. alipes. A. Habitus in lateral view. B, D, F, H, J, L. Subgenital plates. C, E, G, I, K, M. Cerci. (Figs. D–E., H–J. after Costa-Lima & Guitton, 1960).
FIGURE 41 in The tribe Dysoniini part VI: Phylogeny, biogeography and evolutionary trends of the lichen katydid genera (Orthoptera: Tettigoniidae: Phaneropterinae). Eleventh contribution to the suprageneric organization of Neotropical phaneropterines
FIGURE 41. Adapted tree in which the optimizations and their frequencies in the different groups are indicated. Green box indicates the frequency of characters 71:1, 75:1 and 76. The blue box indicates the frequency of the 71:2 and 74:1 characters. The orange box indicates an adaptive novelty 71:3. The yellow box indicates an adaptive novelty 73:1.
ScienceDex guides
Understand access before you commit
These curated guides explain access requirements, typical timelines, costs, and reuse considerations for widely used research datasets.
Allen Brain Atlas
Allen Brain Atlas is an Allen Institute collection of brain map atlases, datasets, APIs, and analysis tools covering mouse, human, and non-human primate brain resources.
Annotated Behaviour and Observability Dataset (ABODe)
ABODe is a University of Edinburgh DataShare dataset for behavior classification in group-housed mice using home-cage video, identities, bounding boxes, ground-plate positions, and annotator labels.
DANDI Archive for NWB datasets
DANDI is a BRAIN Initiative archive for publishing and sharing neurophysiology data, including electrophysiology, optophysiology, and behavioral data packaged as NWB and related standards.
International Brain Laboratory public data
The International Brain Laboratory public data releases expose standardized mouse decision-making experiments, including Neuropixels recordings, widefield calcium imaging, behavior, and session metadata accessed through the ONE API.
OpenNeuro
OpenNeuro is a free, open platform for sharing neuroimaging datasets, with public search, dataset pages, and download paths for web, S3, DataLad, and the OpenNeuro CLI.