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440 results for “flatworm”
Fig. 2 in First record of viviparity in polystomatid flatworms (Monogenea: Polystomatidae) with the description of two new species of Madapolystoma from the Madagascan anuran hosts Blommersia domerguei and Mantella expectata
Fig. 2. Minimum Evolution tree for Madapolystoma spp. Numbers on nodes indicate bootstrap support values. Madapolystoma sp. from B. domerguei refers to M. magnahami n. sp. and Madapolystoma sp. from M. expectata refers to M. isaloensis n. sp.
Fig. 1. a in First record of viviparity in polystomatid flatworms (Monogenea: Polystomatidae) with the description of two new species of Madapolystoma from the Madagascan anuran hosts Blommersia domerguei and Mantella expectata
Fig. 1. a) Map of Madagascar with the distribution areas and sampling localities of the two investigated frogs; b) Blommersia domerguei; c) Mantella expectata. (Map-Library, 2007).
Fig. 2 in Reproductive strategies of the parasitic flatworm Thaparocleidus vistulensis (Siwak, 1932) (Platyhelminthes, Monogenea) infecting the European catfish Silurus glanis Linnaeus, 1758
Fig. 2. The gills of infected fingerling European catfish by T. vistulensis. (A) Developing T. vistulensis attached to the normal gill filaments (arrows) at 2 dpi; (B) Abundance of T. vistulensis on the gill at 10 dpi; (C) (D) Sexually mature monogenean with egg inside the body (arrows) situated on the heavily injured gill at 10 dpi. Scale bars represent 200 μm.
Fig. 1 in Reproductive strategies of the parasitic flatworm Thaparocleidus vistulensis (Siwak, 1932) (Platyhelminthes, Monogenea) infecting the European catfish Silurus glanis Linnaeus, 1758
Fig. 1. Average infection dynamics of Thaparocleidus vistulensis. The First Trial and Second Trial refer to the primary axis (left side), while the Third Trial refers to the secondary axis (right side).
Fig. 3 in Reproductive strategies of the parasitic flatworm Thaparocleidus vistulensis (Siwak, 1932) (Platyhelminthes, Monogenea) infecting the European catfish Silurus glanis Linnaeus, 1758
Fig. 3. Light micrographs of egg development of T. vistulensis. (A) Adult T. vistulensis with an egg inside its body; (B) egg right after oviposition; (C) Egg after 6 hpo; (D) Egg after 24 hpo; (E) (F) Eggs between 24 and 48 hpo: (E) The whole embryo, (F) Larva with primordia of scattered pigment of eyespots and primordia of hamulus; (G) Eggs between 48 and 72 hpo: Developing larva with marginal hooklets and ciliated cells, ventral view; (H) (I) Eggs after 72 hpo: (H) Developed larva before eclosion with anchors and (I) marginal hooklets, lateral view; (J) Moment of eclosion; (K) Empty egg shell with opened operculum; (L) Recently hatched oncomiracidium. Abbreviations: ac, anterior cilia; ca, central anchor; e, eyespot; lc, lateral cilia; mh, marginal hooklets; o, operculum; pc, posterior cilia; pe, primordial eyespot; ph, primordia of hamulus. Scale bars represent 20 μm except for (A), (J), and (L) 50 μm.
Figures 3–5 in A new stylochid flatworm (Platyhelminthes, Polycladida) from Victoria, Australia and observations on its biology
Figures 3–5. Stylochus pygmaeus sp. nov. (3) Details of the eyes arrangement. (4) Morphology of the holotype from ventral view. (5) Reconstruction of the reproductive anatomy of a paratype.
Figures 1, 2 in A new stylochid flatworm (Platyhelminthes, Polycladida) from Victoria, Australia and observations on its biology
Figures 1, 2. Stylochus pygmaeus sp. nov. (1) Inside the barnacle Balanus amphitrite Darwin, 1854. (2) With eggmass deposited on a perspex plate in the absence of barnacles of suitable size.
Figure 1 in A new predatory flatworm (Platyhelminthes, Polycladida) from Botany Bay, New South Wales, Australia
Figure 1. Imogine lateotentare sp. nov., preserved. (A) Diagram of the dorsal surface; (B) morphology of the ventral surface; (C) arrangement of the dorsal eyes; (D) diagrammatic reconstruction of the reproductive system. c, cerebral eyes; ce, cement glands; f, frontal eyes; fa, female antrum; go, gonopores; m, mouth; ma, male antrum; n, nuchal tentacle; p, penis papillae; ph, pharynx; pr, prostatic vesicle; s, seminal vesicle; va, vasa deferentia. Scale bars: 1.5 mm (A, B); 0.9 mm (C); 0.6 mm (D).
Figure 2 in A new predatory flatworm (Platyhelminthes, Polycladida) from Botany Bay, New South Wales, Australia
Figure 2. Living Imogine lateotentare sp. nov. from Kurnell Pier, Botany Bay, New South Wales, Australia. (A) Colour pattern on dorsal surface; (B) ventral view showing pharynx, gonopores and vas deferens. Scale bar: 1.4 mm (A).
Figure 2 in Observations on a Geocentrophora sp. (Lecithoepitheliata) flatworm from forest soils in Nova Scotia
Figure 2. Morphological features of Geocentrophora sp. isolated from Nova Scotia forest soil. (A) Ventral view showing curved copulatory stylet, eye pigments on either side of a bulbous pharynx, and one pair of anterior ciliated pits; (B) relaxed and (C) elongated form in locomotion.
Figure 1 in Observations on a Geocentrophora sp. (Lecithoepitheliata) flatworm from forest soils in Nova Scotia
Figure 1. Phylogenetic tree of the Platyhelminthes from SSU rRNA sequences as inferred by Iqpnni under a GTR+γ model of evolution. Numbers above key nodes refer to the statistical support inferred from 100-replicates in phyml, under a GTR+γ model (and four gamma categories). The new isolate is indicated as Geocentrophora sp. Nova Scotia.
Figure 3 in Observations on a Geocentrophora sp. (Lecithoepitheliata) flatworm from forest soils in Nova Scotia
Figure 3. Photomicrographs of Geocentrophora sp. (×100 magnification). (A) Relaxed form of specimen used in Figure 2, transmitted light; (B) the same specimen under DIC settings; (C) the same specimen under phase contrast. More photographs can be viewed at http://soilecology.biology.dal.ca/index.htm.
Data for: Genome assemblies of the simultaneously hermaphroditic flatworms Macrostomum cliftonense and Macrostomum hystrix
<p>The free-living, simultaneously hermaphroditic flatworms of the genus <em>Macrostomum, </em>are increasingly used as model systems in various contexts. In particular, <em>M. lignano</em>, the only species of this group with a published genome assembly, has emerged as a model for the study of regeneration, reproduction, and stem-cell function. However, challenges have emerged due to <em>M. lignano</em> being a hidden polyploid, having recently undergone whole-genome duplication and chromosome fusion events. This complex genome architecture presents a significant roadblock to the application of many modern genetic tools. Hence, additional genomic resources for this genus are needed. Here we present such resources for <em>M. cliftonense</em> and <em>M. hystrix</em>, which represent<em> </em>the contrasting mating behaviors of reciprocal copulation and hypodermic insemination found in the genus. We use a combination of PacBio long-read sequencing and Illumina shot-gun sequencing, along with several RNA-Seq datasets, to assemble and annotate highly contiguous genomes for both species. The assemblies span ~227Mb and ~220Mb and are represented by 399 and 42 contigs for<em> M. cliftonense</em> and<em> M. hystrix,</em> respectively. Furthermore, high BUSCO completeness (~84-85%), low BUSCO duplication rates (8.3-6.2%), and low k-mer multiplicity indicate that these assemblies do not suffer from the same assembly ambiguities of the<em> M. lignano</em> genome assembly, that can be attributed to the complex karyology of this species. We also show that these resources, in combination with the prior resources from <em>M. lignano, </em>offer excellent foundations for comparative genomic research in this group of organisms.</p>
FIGURE 3 in The invasive alien freshwater FLatworm Girardia tigrina (Girard, 1850) (Platyhelminthes, Tricladida) in Western Europe: new insights into its morphology, karyology and reproductive biology
FIGURE 3 Girardia tigrina from Liguria. Photomicrographs of hyperplasic ovaries and testes. A. ZMA V.Pl. 7283.1, hyperplasic ovaries located behind the brain; B. ZMA V.Pl. 7283.1, ectopic hyperplasic ovarian masses located at the level of the copulatory apparatus; C. ZMA V.Pl. 7283.1, magnification of hyperplasic ovaries, with oocytes at different stages of maturation; D. ZMA V.Pl. 7283.1, mature testes with sperm.
FIGURE 1 Girardia tigrina. A in The invasive alien freshwater FLatworm Girardia tigrina (Girard, 1850) (Platyhelminthes, Tricladida) in Western Europe: new insights into its morphology, karyology and reproductive biology
FIGURE 1 Girardia tigrina. A. Geographic range of allochthonous sexual populations (filled circles) and populations with sexualized animals (triangles and asterisk) in the Western Palaearctic; asterisk: population from Liguria investigated in the present study. B. Aquatic plants as preferential shaded microhabitat in a tank at the Botanical Garden of the University of Genoa, Liguria. C. Habitus of a living ex-fissiparous specimen of the Ligurian population. Scale bar not available.
FIGURE 5 Girardia tigrina from Liguria. CGAS Pla 18.1 in The invasive alien freshwater FLatworm Girardia tigrina (Girard, 1850) (Platyhelminthes, Tricladida) in Western Europe: new insights into its morphology, karyology and reproductive biology
FIGURE 5 Girardia tigrina from Liguria. CGAS Pla 18.1, sagittal reconstruction of the copulatory apparatus (anterior to the left).
FIGURE 6 in The invasive alien freshwater FLatworm Girardia tigrina (Girard, 1850) (Platyhelminthes, Tricladida) in Western Europe: new insights into its morphology, karyology and reproductive biology
FIGURE 6 Girardia tigrina from Liguria. Photomicrographs of the copulatory apparatus; sagittal sections. A. ZMA V.Pl. 7283.1, supernumerary penis and the main, fully developed copulatory apparatus; B. CGAS Pla 18.1, copulatory bursa with the bursal canal, penis, male atrium, and common atrium with diverticulum; C. CGAS Pla 18.2, copulatory bursa with the bursal canal, penis, and male atrium.
FIGURE 4 Girardia tigrina from Liguria. ZMA V in The invasive alien freshwater FLatworm Girardia tigrina (Girard, 1850) (Platyhelminthes, Tricladida) in Western Europe: new insights into its morphology, karyology and reproductive biology
FIGURE 4 Girardia tigrina from Liguria. ZMA V.Pl. 7283.1 A. sagittal reconstruction of the two copulatory appara- tuses (anterior to the left); B. sagittal reconstruction of the main copulatory apparatus at the level of the right branch of the bursal canal and the blind cavity (anterior to the left).
Data from: Contrasting the form and strength of pre- and postcopulatory sexual selection in a flatworm
<p>Sexual traits may be selected during multiple consecutive episodes of selection, occurring before, during, or after copulation. In the research article entitled "Contrasting the form and strength of pre- and postcopulatory sexual selection in a flatworm", published in <em>Evolution</em>, we measured pre- and postcopulatory phenotypic traits alongside variation in fitness components at different episodes. Namely, we assessed the mating success, sperm-transfer efficiency, and sperm fertilising efficiency of focal worms in which we measured 13 morphological traits, and performed multivariate selection analyses assessing the form and strength of selection. We archived the datasets and R scripts necessary to reproduce all analyses performed in this paper.</p>
Mechanism of Praziquantel action at a parasitic flatworm ion channel
<p>Data supporting Park <em>et al.</em> [Mechanism of praziquantel action at a parasitic flatworm ion channel]</p> <p> </p>
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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.