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.
26,475
datasets available to search
ShareScore release 0.9.0
Dataset results
26,475 results for “Genera”
FIGURE 1 in New and interesting palpigrades (Arachnida, Palpigradi) of the genera Koeneniodes Silvestri, 1913 and Prokoenenia Börner, 1901 from Asia
FIGURE 1. Koeneniodes tibetanus sp. n. A, habitus, dorsal view; B, habitus, ventral view; C, frontal organ; D, lateral organ; E, distal setae (d1 –d3) on basal segment of chelicera; F, proximal setae (p1 –p6) on basal segment of chelicera; G, deuto–tritosternal setae. Scale bars: 100 μm (A–B), 20 μm (C–G).
FIGURE 2 in New and interesting palpigrades (Arachnida, Palpigradi) of the genera Koeneniodes Silvestri, 1913 and Prokoenenia Börner, 1901 from Asia
FIGURE 2. Koeneniodes tibetanus sp. n. A, metapeltidium setae; B, propeltidium; C, opisthosoma, dorsal view; D, opisthosoma, ventral view; E, sternites III–VI; F, sternites IV–VI; G, female genitalia, first lobe; H, female genitalia, second lobe; I, sternites VII–XI. Scale bars: 50 μm.
FIGURE 9 in New and interesting palpigrades (Arachnida, Palpigradi) of the genera Koeneniodes Silvestri, 1913 and Prokoenenia Börner, 1901 from Asia
FIGURE 9. Prokoenenia sarcodactylica sp. n. A, frontal organ, lateral view; B, lateral organ; C, blade of lateral organ, detail; D, insertions/sockets of blades, lateral organ; E, distal setae (d1–d3) on basal segment of chelicera; F, proximal setae (p1–p6) on basal segment of chelicera; G, pedipalp coxa, right side; H, leg I coxa, right side I. Scale bars: 20 μm (A–F), 50 μm (G–H).
Data from: Oligocene–Neogene fossil history of Asian endemic conifer genera in Japan and Korea
Temporal and spatial changes of ten conifer genera that are endemic to East Asia were analyzed based on fossil data from humid temperate forests in the Japanese Islands and Korean Peninsula to elucidate the phytogeographic history, and to understand differences between those genera eliminated from the Japanese Islands and those remained extant. All these genera, except for Thujopsis, have existed in the area since the Paleogene and remained in the Japanese islands after initial separation from the continent at the early–middle Miocene. Those locally extinct six genera have tendencies to adapt to wider ranges of climatic conditions than their modern relatives. Metasequoia, Glyptostrobus, and Taiwania began to change their distributions since the late Miocene possibly through habitat partitioning. Keteleeria, Pseudolarix, and Cunninghamia appeared to have expanded their habitat toward warmer conditions during the mid-Miocene Climatic Optimum and then became restricted to warmer forest vegetation by the end of Pliocene. Overall changes in their distribution can be explained by climatic effects. On the contrary, three genera endemic to Japan (Sciadopitys, Cryptomeria, and Thujopsis) followed clearly different trends from the others. Cryptomeria and Thujopsis were especially adapted to cooler-temperate climate and they retained their habitat areas in the northern part of Japan. During the late Miocene–Pliocene, the islands connected with the Eurasian continent again, which probably acted as a corridor for warm-adapted genera to disperse southwest. Current data suggest that ecological requirements of each genus might be essential to decide whether they could survive on the Japanese Islands.
Data from: The Tetramerium lineage (Acanthaceae, Justicieae) revisited: phylogenetic relationships reveal polyphyly of many new world genera accompanied by rampant evolution of floral morphology
Molecular data confirm monophyly of the Tetramerium lineage (Acanthaceae, Justicieae), a group of nearly 200 species, ca. 75% from the New World (NW) and the remainder from Asia or Africa. Compared to our earlier work, > 50% more in-group taxa were sampled (nearly 2/3 of known taxa now sampled) and added ~20% more sequence data. We time-calibrate the phylogeny using primary fossil evidence and the larger context of a calibrated phylogeny for Acanthaceae. Many aspects of relationship are strongly supported but uncertainty remains about a number of phylogenetically isolated taxa (e.g., African Angkalanthus, Chorisochora; NW Ancistranthus) and some aspects of relationships among clades remain weakly supported. The group originated in the OW and began diversifying about 11.5 Ma. A single dispersal event to the NW occurred about 8.3 Ma, likely from Africa to southwestern North America. A number of major clades, particularly in the NW, are less than 5 Ma old and species in many clades are substantially younger. Several NW clades – even those with <10 species – comprise species that are markedly heterogeneous in floral traits likely reflecting selection by pollinators. Many NW genera are not monophyletic, which is not surprising given that floral traits have been relied upon taxonomically. Diversification rate analysis revealed no significant shifts resulting in a gradual increase in number of lineages with time. The Tetramerium lineage is now phylogenetically well characterized but remains enigmatic from the perspective of morphological evidence for many aspects of relationships. The lineage is usefully thought of as a 'clade complex': as a species complex is of morphologically confusing species, a 'clade complex' is of clades that are not well characterized morphologically.
Data from: MonotomidGen – A matrix-based interactive key to the New World genera of Monotomidae (Coleoptera, Cucujoidea)
A matrix-based Lucid key is presented for the twelve genera of Monotomidae (Coleoptera: Cucujoidea) represented in the New World. A general overview is given for the features and technical specifications of an original interactive key for the identification of these genera. The list of terminal taxa included with the key provides a current summary of monotomid generic diversity for the Nearctic and Neotropical regions.
Data from: Cladistic assignment of specimens to species of the cystoporate bryozoan genera Strotopora Ulrich and Cliotrypa Ulrich and Bassler using gap-coded characters
Gap-coding permits the use of continuous metric characters in cladistic analyses. Character means are converted to integer equivalents by placing character state divisions in the locations of phenetic breaks between specimen clusters, under the assumption that these breaks represent the locations of bottlenecks in character distributions. Similarities and differences between specimens from closely related species of cystoporate bryozoans were evaluated for the first time by converting continuous morphometric measurements into gap-coded binary and multistate characters and analyzing them cladistically, rather than just phenetically, across multiple species of Strotopora, Cliotrypa ramosa and Fistulipora compressa. Our results demonstrate that cladistic analysis of gap-coded morphological characters can be effective in resolving phylogenetic relationships at low taxonomic levels (within and among genera) while objectively highlighting both the morphological features that specimens (taxa) share and those characteristics that differentiate them. Differences in cystiphragm abundances and sizes, especially in the proximal portions of colonies, discriminate between species of Strotopora. Colony size and growth form, abundances and lengths of hemiphragms, and sizes of cystopores discriminate between Strotopora and the closely related genus Cliotrypa. Cladistic patterns indicate that Strotopora foveolata Ulrich is a valid species with Strotopora dermata as its junior subjective synonym. Fistulipora compressa is reassigned to the genus Strotopora whereas a decision on the taxonomic status of Cliotrypa ramosa requires a broader cladistic analysis of fistuliporine genera.
Data from: Molecular phylogenetics of Maxillaria and related genera (Orchidaceae: Cymbidieae) based on combined molecular data sets
The orchid genus Maxillaria is one of the largest and most common of neotropical orchid genera, but its current generic boundaries and relationships have long been regarded as artificial. Phylogenetic relationships within subtribe Maxillariinae sensu Dressler (1993) with emphasis on Maxillaria s.l. were inferred using parsimony analyses of individual and combined DNA sequence data. We analyzed a combined matrix of nrITS DNA, the plastid matK gene and flanking trnK intron, and the plastid atpB-rbcL intergenic spacer for 619 individuals representing ca. 354 species. The plastid rpoC1 gene (ca. 2600 bp) was sequenced for 84 selected species and combined in a more limited analysis with the other data sets to provide greater resolution. In a well-resolved, supported consensus, most clades were present in more than one individual analysis. All the currently recognized minor genera of "core" Maxillariinae (Anthosiphon, Chrysocycnis, Cryptocentrum, Cyrtidiorchis, Mormolyca, Pityphyllum, and Trigonidium) are embedded within a polyphyletic Maxillaria s.l. Our results support the recognition of a more restricted Maxillaria, of some previously published segregate genera (Brasiliorchis, Camaridium, Christensonella, Heterotaxis, Ornithidium, Sauvetrea), and of several novel clades at the generic level. These revised monophyletic generic concepts should minimize further nomenclatural changes, encourage monographic studies, and facilitate more focused analyses of character evolution within Maxillariinae.
Data from: Taxonomy of deep-sea trachyleberidid, thaerocytherid, and hemicytherid genera (Ostracoda)
We conducted a comprehensive systematic revision of deep-sea Trachyleberididae, Thaerocytheridae, and Hemicytheridae (Ostracoda, Crustacea) covering almost all Cenozoic genera using high-resolution scanning electron microscopy. Trachyleberididae, our main focus, is one of the most diverse and abundant ostracod families, but its genus-level taxonomy is still confusing. Approximately 700 specimens from 177 species from 47 genera were examined. The studied samples range in age from the Cretaceous to the present day and cover all major oceans in the world, including the Atlantic, Pacific, Indian, and Southern Oceans, the Mediterranean Sea, and the Gulf of Mexico. Five new genera and 45 new species are described: Bensonodutoitella gen. nov., Hornibrookoleberis gen. nov., Croninocythereis gen. nov., Bensonocosta gen. nov., Ryugucivis gen. nov., Abyssocythere scotti sp. nov., Ambocythere tomocaudata sp. nov., Ambocythere whatleyi sp. nov., Ambocythere hyakunome sp. nov., Atlanticythere bensoni sp. nov., Atlanticythere oculi sp. nov., Dutoitella cronini sp. nov., Dutoitella symmetrica sp. nov., Dutoitella mazziniae sp. nov., Dutoitella paradinglei sp. nov., Dutoitella ayressi sp. nov., Dutoitella colesi sp. nov., Dutoitella spinosa sp. nov., Dutoitella whatleyi sp. nov., Dutoitella atlantiformis sp. nov., Bensonodutoitella bicornigeri sp. nov., Oligocythereis sylvesterbradleyi sp. nov., Cythereis guerneti sp. nov., Cythereis johnnealei sp. nov., Cythereis parajohnnealei sp. nov., Cythereis neoanteplana sp. nov., Cythereis sylvesterbradleyi sp. nov., Cythereis bensoni sp. nov., Cythereis purii sp. nov., Cythereis fungina sp. nov., Cythereis tomcronini sp. nov., Cythereis legitimoformis sp. nov., Cythereis richardbensoni sp. nov., Cythereis dinglei sp. nov., Cythereis ovi sp. nov., Cythereis swansoni sp. nov., Croninocythereis tridentiferi sp. nov., Croninocythereis cronini sp. nov., Bensonocosta bensoni sp. nov., Ayressoleberis colesi sp. nov., Leguminocythereis? buzasi sp. nov., Legitimocythere tomi sp. nov., Ryugucivis jablonskii sp. nov., Ryugucivis acuminata sp. nov., Ryugucivis obtusa sp. nov., Phacorhabdotus mazzinireticulatus sp. nov., Phacorhabdotus nudus sp. nov., Phacorhabdotus slipperi sp. nov., Taracythere ayressoabyssora sp. nov., and Taracythere thalassoformis sp. nov. Emended concepts are proposed for several important genera to better stabilize their taxonomy. This study considerably reduces taxonomic uncertainty of this important component of the modern and fossil deep-sea ostracod community and provides a robust taxonomic baseline for deep-sea ostracod-based paleoceanographic, paleoecological, and macroevolutionary research. KEY WORDS: Deep sea, Ostracoda, taxonomy, Trachyleberididae, Thaerocytheridae, Hemicytheridae.
Data from: Bryozoan genera Fenestrulina and Microporella no longer confamilial; multi-gene phylogeny supports separation
Bryozoans are a moderately diverse, mostly marine phylum with a fossil record extending to the early Ordovician. Compared to other phyla, little is known about their phylogenetic relationships at both lower and higher taxonomic levels. Hence, an effort is being made to elucidate the phylogenetic relationships among bryozoans. Here, we present newly sequenced nuclear and mitochondrial genes for 21 cheilostome bryozoans and compile these with existing orthologous molecular data. Using these data, we focus on reconstructing the phylogenetic relationships of Fenestrulina and Microporella, two species-rich genera. They are currently placed in a globally distributed family, Microporellidae, defined by having a semicircular primary orifice and a proximal ascopore, although there are indirect inferences in the morphological literature that suggest they might not be confamilial. Our six-gene phylogenetic analysis reveals that the genera Fenestrulina and Microporella are each monophyletic, with the sister clade to Microporella comprising non-microporellids. These genera thus have a polyphyletic relationship and should not be placed in the same family. Our result supports the reinstatement of the family Fenestrulinidae Jullien, 1888 for Fenestrulina and genera with comparable frontal shield and ooecial morphologies. Our well-supported phylogeny based on independent molecular data lends credit to existing phylogenetic hypotheses based on morphological observations but does not conform to the current classification of these particular bryozoans. This illustrates the general need for a rethink of bryozoan higher-level systematics, ideally based on both morphological and molecular data.
Data from: A combined morphometric and phylogenetic revision of the late Ordovician brachiopod genera Eochonetes and Thaerodonta
Systematic revision of the Late Ordovician brachiopod genera Eochonetes Reed, 1917 and Thaerodonta Wang, 1949 was conducted utilizing specimen-based morphometric and species-level phylogenetic analyses. Previous studies had recognized Thaerodonta and Eochonetes as either distinct taxonomic entities or synonyms. New multivariate and phylogenetic analyses confirm the synonymy of Thaerodonta with Eochonetes and provide a framework to assess evolutionary and ecological patterns within the clade. Multivariate analyses were employed to delineate species in morphospace and provided information on potential species relationships. Phylogenetic analysis was used to produce an evolutionary framework for taxonomic revision and identify character evolution within the clade. Most species previously assigned to Thaerodonta are transferred to Eochonetes, and three others are excluded from Eochonetes and provisionally referred to other sowerbyellid genera. Three new species (Eochonetes maearum new species, E. voldemortus new species, E. minerva new species) are described, one species (Leptaena saxea Sardeson, 1892) is synonymized with E. recedens Sardeson, 1892, and one subspecies (Thaerodonta mucronata scabra Howe, 1965) is rejected. This study demonstrates that a combination of complementary approaches and data types has the potential to advance interpretations beyond analyses confined to single analytical tools. Specifically, multivariate analyses provide constraints on species boundaries, whereas species-level phylogenetic analyses provide frameworks to examine morphological, ecological, and biogeographic evolution within a clade.
Custom MALDI-TOF Mass Spectrometric Database for identification of environmental Burkholderia and related genera
<p class="CxSpFirst">Success of microbial natural products discovery programs is dependent on quick and concise discrimination between isolates from diverse environments. However, laboratory isolation and identification of priority genera using current 16S rRNA PCR-based methods is both challenging and time-consuming. In clinical settings, MALDI-TOF MS is used to rapidly identify unknown bacterial pathogens, yet this has not been widely adapted for isolation of environmental bacteria. To expedite isolation of Gram-negative proteobacterial order Burkholderiales, we have created a main spectral (MSP) library for the Bruker Biotyper MALDI mass spectrometer that includes 95 entries of <i>Burkholderia, Caballeronia, Paraburkholderia,</i> and other environmentally related genera. We tested the effectiveness of the reference library by analyzing 49 unknown environmental isolate strains before comparing to results of traditional 16S sequencing. The MALDI Biotyper correctly identified all strains to the genus level when sufficient reference spectra were available. This dataset is freely available to the scientific research community for use in taxonomic assignments of environmentally-derived bacteria from the order Burkholderiales.</p>
Trichome micromorphology in Alcea L. and allied genera (Malvaceae) and its systematic
Trichomes of 26 species of the genus Alcea were investigated using light (LM) and scanning electron microscopy (SEM). The trichomes show a great micromorphological variation, which provides interesting data for species delimitation in Alcea. Two basic types of trichomes can be distinguished in the genus Alcea and the allied genera: glandular and eglandular. The glandular trichomes can in turn be subdivided into two subtypes: capitate and clavate. The eglandular trichomes can be subdivided into five subtypes: simple, fascicled, stellate, fascicled-stellate and pluri-radiate. Characters of taxonomic interest are: trichome density (glabrous to dense), number of arms per trichome, orientation relative to the epidermal surface (appressed to erect) and presence/absence of stalk. According to our results the species of Alcea can be divided into four informal groups based on trichome types. Our results support the exclusion of annual Althaea from the perennial ones and its close placement to Malva. In addition, the close relationship between perennial Althaea and basal Alcea lineages is supported by our trichome micro-morphological investigation. Based on the evolutionary framework provided by recent molecular phylogenetic investigations, following trends can be proposed in Malva alliance: long and narrowly armed trichomes are primitive against the short and thickly armed trichomes, dense indumentum coverage is primitive against the moderately dense or glabrous ones, the presence of simple hairs on stem (particularly on leaves) is more advanced against their absence, spreading villous-stellate and fascicled trichomes are more advanced against the appressed stellate ones and clavate trichomes, which were found exclusively in few species of Alcea, should be considered as a derived state against the capitate ones, and potentially provide a synapomorphy for the crown group of Alcea, but this conclusion needs to be tested by adding more species to trichome morphological analysis.
Data from: The 'Oxycythereis' problem: taxonomy and palaeobiogeography of deep-sea ostracod genera Pennyella and Rugocythereis
Systematic revision of the globally distributed deep-sea ostracod genera Pennyella Neale, 1974 and Rugocythereis Dingle, Lord and Boomer, 1990, which have been considered to correspond, at least partially, to nomen nudum but widely used genus name 'Oxycythereis,' was conducted to reduce taxonomic uncertainty of these important components of the Modern and fossil deep-sea ostracod community. Approximately 100 specimens from 18 species were examined, ranging in age from the Cretaceous to the present day. Nine new species are described: Pennyella rexi, Pennyella sanfordae, Pennyella liowae, Pennyella schellenbergi, Pennyella majorani, Pennyella iani, Pennyella ayressi, Rugocythereis melonis and Rugocythereis zarikiani. Emended generic concepts of Pennyella and Rugocythereis are proposed, and the palaeobiogeographical distributions of these two genera are discussed.
Data from: Determinants of early survival in marine animal genera
Genera by their very nature are expected to be monotypic and geographically and environmentally restricted at their origin, and most genera do not endure past their stage of first appearance. At the same time, those genera that do endure have a capacity to expand greatly in geographic range, environmental breadth, and species richness. Here we ask what it is that allows some genera and not others to survive past their inception. Using occurrence data from the Paleobiology Database, we find that initial geographic range has the strongest effect on survival, followed by environmental breadth, with the effect of species richness weaker on average. The effect of geographic range is strongest if measured as the distances spanned by the occurrences of a genus rather than the number of distinct areas in which a genus lives. We document substantial secular variation in selectivity of early survival. The most striking aspect of this variation is that survival is only weakly selective among genera that first appear during the Mesozoic. By following genera beyond their stage of first appearance, we find that selectivity with respect to all factors becomes systematically stronger as cohorts age and genera become more differentiated in range, breadth, and richness. This may help account for a previously identified statistical effect of genus age on the chances of survival.
Figure 5 in Natural history of the fireflies of the Serra dos Órgãos mountain range (Brazil: Rio de Janeiro) - one of the 'hottest' firefly spots on Earth, with a key to genera (Coleoptera: Lampyridae)
Figure 5. Diversity of Photurinae fireflies of the Serra dos Órgãos. A – Bicellonycha albilatera, B – Bicellonycha tenuicornis, C – Photuris velox, D – Photuris elliptica, E – Photuris femoralis (modified from Souto et al. 2019), F – Photuris lugubris, G – Pyrogaster moestus, H – Pyrogaster lunifer, I – Pyrogaster vestitus, J – Pyrogaster elongatior, K – Pyrogaster aureus, L – Pyrogaster angustatus, M – Pyrogaster nigrolineatus, N – Pyrogaster telephorinus, O – Pyrogaster margipallens, P – Pyrogaster atrocinctus, Q – Pyrogaster coxalis. Scale bar: 2 mm.
Figure 2 in Natural history of the fireflies of the Serra dos Órgãos mountain range (Brazil: Rio de Janeiro) - one of the 'hottest' firefly spots on Earth, with a key to genera (Coleoptera: Lampyridae)
Figure 2. Regional climate at the study area is marked by a warm season between October‒April, and a cool season between May‒September. Lines represent the monthly mean, and the shaded area represents the range between the monthly maximum and minimum, from 2007–2017. Inter-annual variation in precipitation is higher in the warm than in the cool season. Data were obtained from an automated weather station at the PNSO at 991 m, Latitude: −22.448922º, Longitude: −42.987146º.
Figure 3 in Natural history of the fireflies of the Serra dos Órgãos mountain range (Brazil: Rio de Janeiro) - one of the 'hottest' firefly spots on Earth, with a key to genera (Coleoptera: Lampyridae)
Figure 3. Diversity of fireflies of the Serra dos Órgãos, including Amydetinae, Psilocladinae, Lampyrinae, and Incertae sedis taxa. A – Amydetes fastigiata, B – Magnoculus obscurus, C – Cladodes pauper, D – Cladodes illigeri, E – Cladodes stellata, F – Vesta thoracica, G – Araucariocladus hiems (modified from Silveira and Mermudes 2017), H – Psilocladus grandis, I – Psilocladus sigillatus, J – Psilocladus pulcher, K – Scissicauda disjuncta (modified from Silveira et al. 2016a), L – Ethra axillaris, M – Ethra marginata, N – Ethra addita, O – Ethra inculta. Scale bar: 2 mm.
Figure 4 in Natural history of the fireflies of the Serra dos Órgãos mountain range (Brazil: Rio de Janeiro) - one of the 'hottest' firefly spots on Earth, with a key to genera (Coleoptera: Lampyridae)
Figure 4. Diversity of Lampyrinae fireflies of the Serra dos Órgãos. A – Aspisoma sticticum, B – Aspisoma lineatum, C – Aspisoma pallens, D – Cratomorphus besckei, E – Cratomorphus cossyphinus (modified from Campos et al. 2018), F – Cratomorphus splendidus, G – Cratomorphus distinctus, H – Lucernuta savignii (modified from Silveira et al. 2019), I – Lychnacris flabellata subopaca, J – Phaenolis basalis, K – Luciuranus takiyae (modified from Silveira et al. 2018), L – Luciuranus desideratus (modified from Silveira et al. in 2018), M – Luciuranus josephi (modified from Silveira et al. 2016b), N – Luciuranus jameshooki (modified from Silveira et al. 2016b), O – Lucidota flabellicornis, P – Lucidota tricolor, Q – Photinus infuscatus, R – Photinus laticollis, S – Macrolampis varicollis, T – Photinus succensus, U – Photinus augustalisi, V – Macrolampis frater, W – Photinus nodieri, X – Ybytyramoan praeclarum (modified from Silveira and Mermudes 2014b), Y – Ybytyramoan diasi (modified from Silveira and Mermudes 2014b), Z – Ybytyramoan monteirorum (modified from Silveira and Mermudes 2014b). Scale bar: 2 mm.
Figure 1 in Natural history of the fireflies of the Serra dos Órgãos mountain range (Brazil: Rio de Janeiro) - one of the 'hottest' firefly spots on Earth, with a key to genera (Coleoptera: Lampyridae)
Figure 1. The Serra dos Órgãos National Park (blue) and the Guapiaçu Ecological Reserve (red), in the Rio de Janeiro State (Southeastern Brazil) are protected areas within the domains of the Serra do Mar Mountain Range (green), Southeastern Brazil.
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.