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50 results for “Planorbidae”
Figure 3 in Phylogeny and biogeography of African Biomphalaria (Gastropoda: Planorbidae), with emphasis on endemic species of the great East African lakes
Figure 3. Consensus cladogram resulting from the parsimony and maximum-likelihood analyses of the combined matrix (16S, cytochrome oxidase subunit I, COI, and internal transcribed spacer I, ITS1). maximum-parsimony (MP) bootstrap values greater than 50% are positioned below the nodes, and the posterior probabilities from the Bayesian inference analysis are placed above the nodes. Species icons represent the typical morphology of the species. Species without country nomination are from Uganda. The 'Nilotic species complex' first inferred by DeJong et al. (2001) is indicated by the vertical bar. Note the basal position of Biomphalaria angulosa to the Nilotic species complex. The weak bootstrap support of this complex in the parsimony analysis is a result of the close phylogenetic relationship with B. angulosa.
Figure 2 in Phylogeny and biogeography of African Biomphalaria (Gastropoda: Planorbidae), with emphasis on endemic species of the great East African lakes
Figure 2. Plots of transitions (TS) and transversions (TV) for Biomphalaria relative to the percentage sequence divergence (p-distance). The sliding window analysis for noncoding sequences and codon position for protein coding sequences are given in the insets. A, TS/TV plot of the partial sequence of the mitochondrial 16S gene. Regions with the most variation are identified in the sliding window analysis and correspond to loop regions in the secondary structure. B, TS/TV plot of the total internal transcribed spacer I (ITS1) gene that indicates a possible saturation. The sliding window analysis (inset) illustrates that the variation is not distributed uniformly across the sequence. C, TS/TV plot of the partial sequence of cytochrome oxidase subunit I (COI; primer pair LCO/HCO). The codon position plot is given in the inset. D, TS/TV plot of the partial sequence of COI (primer pair ASMIT 1/2). The codon position plot is given in the inset.
Figure A1 in Phylogeny and biogeography of African Biomphalaria (Gastropoda: Planorbidae), with emphasis on endemic species of the great East African lakes
Figure A1. Cladograms resulting from maximum-likelihood (ML) and maximum-parsimony (MP) analyses of the combined matrix and parsimony analyses of single-gene cladograms. Bootstrap support is indicated at the nodes. A, Consensus cladogram inferred from weighted and unweighted 16S by MP. B, Cladogram inferred from internal transcribed spacer I (ITS1) by MP. C, Cladogram inferred from cytochrome oxidase subunit I (COI) by MP (primer pair LCO/HCO). D, Cladogram inferred from COI (primer pair ASMIT 1/2) by MP. E, Cladogram inferred from the combined data matrix by MP. F, Cladogram inferred from the combined data matrix by ML.
Figure 1 in Phylogeny and biogeography of African Biomphalaria (Gastropoda: Planorbidae), with emphasis on endemic species of the great East African lakes
Figure 1. Summary cladogram from DeJong et al. (2001) showing the relationships of the African Biomphalaria. Note the position of Biomphalaria stanleyi within Biomphalaria pfeifferi.
Abb. 1 in Erstfund von Anisus vorticulus (TROSCHEL 1834) im Bundesland Salzburg (Gastropoda, Planorbidae)
Abb. 1: Anisus vorticulus aus dem Obertrumersee, Salzburg.
Abb. 1 in Wiederentdeckung der verschollenen Wasserschneckenarten Anisus vortex (LINNAEUS 1758) und Ferrissia wautieri (MIROLLI 1960) in Salzburg (Gastropoda, Planorbidae)
Abb. 1: Anisus vortex aus der Stadt Salzburg. Rasterelektronenmikroskopische Aufnahme.
Figure 2 in Ferrissia californica (Gastropoda: Planorbidae): the first record of a global invader in a cave habitat
Figure 2. Scanning electron microscope (SEM) micrographs of Ferrissia shells collected in (a) the Tskhal-Tsiteli Cave, (b) the Botanical Garden of Sukhumi, Abkhazia, and (c) the Pekhorka River, Moscow Region, Russia.
Figure 4 in Sperm ultrastructure in two species of Gyraulus (Gastropoda: Pulmonata: Planorbidae)
Figure 4. Longitudinal (LS) and transverse (TS) transmission electron micrograph sections of spermatozoa of Gyraulus (Gyraulus) albus. (a) LS, sperm head at the final stage of maturation. (b, c) LS, internal structure of the acrosomal complex. (d) TS, acrosomal pedestal. (e) TS, basal portion of the nucleus with trapezoid coarse fibres. (f) TS, neck region with trapezoid coarse fibres and a single glycogen mass surrounded by a thin band of mitochondrial derivative. (g) TS, anterior midpiece with triangular coarse fibres and four glycogen helices enclosed within a mitochondrial derivative. (h) LS, posterior portion of the nucleus, neck region and anterior portion of the midpiece. (i) LS, middle portion of the midpiece showing four glycogen helices, mitochondrial derivative and axial complex. (j) TS, middle portion of the midpiece showing three glycogen helices, mitochondrial derivatives and axial complex. (k) TS, middle portion of the midpiece with two glycogen helices, mitochondrial derivative and axoneme. (l) TS, posterior midpiece with a single glycogen helix. (m) TS, posterior
Figure 3 in Sperm ultrastructure in two species of Gyraulus (Gastropoda: Pulmonata: Planorbidae)
Figure 3. Longitudinal (LS) and transverse (TS) transmission electron micrograph sections of spermatozoa of Gyraulus (Armiger) crista. (a, b) LS, head of a spermatozoon at the final stage of maturation. (c) LS, internal structure of the acrosomal complex. (d) TS, middle portion of the nucleus. (e) TS, basal portion of the nucleus with trapezoid coarse fibres and a single glycogen mass surrounded by a thin band of mitochondrial derivative. (f) TS, neck region with triangular coarse fibres and four glycogen helices enclosed within the mitochondrial derivative. (g) LS, middle portion of the midpiece with three glycogen helices, mitochondrial derivative and axoneme. (h) TS, middle portion of the midpiece with two glycogen helices, mitochondrial derivative and axoneme. (i) TS, posterior portion of the midpiece with a single glycogen helix. (j) TS, portion of the midpiece without glycogen helices. (k, l) LS, annulus region showing a ring at the tip of the mitochondrial derivative (black arrows) and a cylinder at the anterior end of the glycogen piece (white arrows). (m) TS, glycogen region with the axoneme. (n) TS, axoneme in the tail region with a complete 9 + 2
Figure 2 in Sperm ultrastructure in two species of Gyraulus (Gastropoda: Pulmonata: Planorbidae)
Figure 2. Scanning electron micrographs of sperm heads. (a) Gyraulus (Armiger) crista. (b) Gyraulus (Gyraulus) albus. Scale bars: a, b = 1 µm.
Figure 1 in Sperm ultrastructure in two species of Gyraulus (Gastropoda: Pulmonata: Planorbidae)
Figure 1. General view of spermatozoa. Light microscopy. (a) Gyraulus (Armiger) crista. (b) Gyraulus (Gyraulus) albus. Scale bars: a, b = 50 µm.
Figure 4 in Microgeographic differentiation among closely related species of Biomphalaria (Gastropoda: Planorbidae) from the Andean Altiplano
Figure 4. Spatial genetic structure obtained in GENELAND (setting K = 4) for Biomphalaria snails (the springs sampled in Salar de Carcote and Salar de Ascotán are numbered S1, etc.). A, posterior probabilities of population membership in clusters 1–4 (from left to right, respectively). Lighter shading indicates higher probabilities of population membership. B, summary of estimated cluster membership of the four clusters and their respective localities. The black dots correspond to the localities analysed in this study.
Figure 3 in Microgeographic differentiation among closely related species of Biomphalaria (Gastropoda: Planorbidae) from the Andean Altiplano
Figure 3. Molecular analyses among Biomphalaria populations (springs sampled in Salar de Carcote and Salar de Ascotán are numbered S1, etc.). A, tree obtained by maximum-likelihood (ML) analysis using mtDNA COI sequences. Identical topology was recovered in the maximum parsimony (MP) analysis. Numbers above the nodes indicate bootstrap values obtained under ML and MP analyses, respectively. The first number after the salt pan and species name indicates the specimen sampled. B, median-joining network of haplotypes obtained from Biomphalaria snails sampled in Salar de Carcote (C), Salar de Ascotán (A), and Isluga. The circle sizes are proportional to the number of observations of each haplotype. White circles represent missing haplotypes. The clades recovered by the phylogenetic analyses are also indicated.
Figure 1 in Microgeographic differentiation among closely related species of Biomphalaria (Gastropoda: Planorbidae) from the Andean Altiplano
Figure 1. Sampling sites of the Biomphalaria snails considered in the present study. Salar de Carcote and Salar de Ascotán are magnified. The springs sampled in each salt pan are labelled S1, S2,..., etc.
Figure 2 in Microgeographic differentiation among closely related species of Biomphalaria (Gastropoda: Planorbidae) from the Andean Altiplano
Figure 2. Radular morphology of Biomphalaria snails observed using scanning electron microscopy (SEM). A, general morphological appearance of the radula. B, C, and D, rachidian teeth of Biomphalaria costata (Salar de Carcote), Biomphalaria crequii (Salar de Ascotán), and Biomphalaria aymara (Isluga swamps), respectively.
Figure 6. Trematodes parasitizing Biomphalaria aymara from Isluga, Chilean Altiplano. S in Phylogenetic relationships and taxonomy of Altiplano populations of Biomphalaria (Gastropoda: Planorbidae): inference from a multilocus approach
Figure 6. Trematodes parasitizing Biomphalaria aymara from Isluga, Chilean Altiplano. S, shell; T, trematodes in the soft body.
Figure 5 in Phylogenetic relationships and taxonomy of Altiplano populations of Biomphalaria (Gastropoda: Planorbidae): inference from a multilocus approach
Figure 5. Reconstruction of the divergence times of lineages of Biomphalaria estimated using a substitution rate of 1.6–2.2% per million years for the 16S locus. We used one sequence per population/species to generate a Bayesian tree. Numbers at nodes represent millions of years. The origin of the sequences is shown using numbers or initials (see Table 1).
Figure 4 in Phylogenetic relationships and taxonomy of Altiplano populations of Biomphalaria (Gastropoda: Planorbidae): inference from a multilocus approach
Figure 4. Consensus tree obtained from Bayesian analysis using the matrix of 90 sequences. Numbers at nodes indicate posterior probability values (only those above 0.94 are given). The origin of the sequences is shown using numbers or initials (see Table 1).
Figure 1 in Phylogenetic relationships and taxonomy of Altiplano populations of Biomphalaria (Gastropoda: Planorbidae): inference from a multilocus approach
Figure 1. Sampling localities of populations of Biomphalaria of the southern Altiplano. The number of localities sampled by basin is shown in parentheses. Asterisks indicate basins where Biomphalaria snails were not found.
Figure 3 in Phylogenetic relationships and taxonomy of Altiplano populations of Biomphalaria (Gastropoda: Planorbidae): inference from a multilocus approach
Figure 3. Tree obtained from the maximum-likelihood analysis using the combined matrix of 90 sequences. Numbers at nodes indicate bootstrap support values (only those above 50% are given). The origin of the sequences is shown using numbers or initials (see Table 1).
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Allen Brain Atlas
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DANDI Archive for NWB datasets
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International Brain Laboratory public data
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OpenNeuro
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