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3,457 results for “chromosomes”
FIGURES 1–3 in Chromosomes and their meiotic behavior in twelve species of the subfamily Harpactorinae (Hemiptera: Heteroptera: Reduviidae) from north India
FIGURES 1–3. Rhynocoris kumarii; 1. diffuse stage; 2. metaphase I; 3.metaphase II. FIGURES 4–6. Rhynocoris costalis; 4. diffuse stage; 5. metaphase I; 6. metaphase II. FIGURES 7–9. Rhynocoris sp.1; 7. diffuse stage; 8. metaphase I; 9. metaphase II. FIGURES 10–13. Sycanus croceovittatus; 10. diffuse stage; 11. diplotene; 12. metaphase I; 13. metaphase II. Arrows represent Y chromosome, arrowhead represents X chromosomes. Bar= 0.01mm.
Figure 9. A–D in A new genus of African Acrometopini (Tettigoniidae: Phaneropterinae) based on morphology, chromosomes, acoustics, distribution, and molecular data, and the description of a new species
Figure 9. A–D, left cercus of male Altihoratosphaga species. A, Altihoratosphaga hanangensis sp. nov. B, Altihoratosphaga nou. C, Altihoratosphaga montivaga. D, Altihoratosphaga nomima. All specimens were collected from Ruaha National Park. Scale bar: 2 mm. E–H, subgenital plates of male Altihoratosphaga species. E, A. hanangensis sp. nov. F, A. nou. G, A. montivaga. H, A. nomima. All specimens were collected from Ruaha National Park. Scale bar: 2 mm. I, right tegmen of male A. hanangensis sp. nov. Scale bar: 0.5 cm. J, subgenital plate of female A. hanangensis sp. nov. Scale bar: 1 mm. K, ovipositor of A. hanangensis sp. nov. Scale bar: 1 mm.
Figure 8. A–D in A new genus of African Acrometopini (Tettigoniidae: Phaneropterinae) based on morphology, chromosomes, acoustics, distribution, and molecular data, and the description of a new species
Figure 8. A–D, lateral view of the pronotum and dorsal view of the abdominal apex of male Altihoratosphaga species. A, Altihoratosphaga hanangensis sp. nov., paratype. B, Altihoratosphaga nou, paratype. C, Altihoratosphaga montivaga. D, Altihoratosphaga nomima, holotype. E–H, dorsal view of abdominal apex of male Altihoratosphaga species. E, A. hanangensis sp. nov., paratype. F, A. nou, paratype. G, A. montivaga. H, A. nomima, holotype I, dorsal aspect of male pronotum of A. hanangensis sp. nov. Note the triangle-shaped posterior part of the pronotum. J, lateral view of abdominal apex of female A. hanangensis sp. nov., paratype. K, reduced alae of female A. montivaga. Scale bars: 2 mm.
Figure 6 in A new genus of African Acrometopini (Tettigoniidae: Phaneropterinae) based on morphology, chromosomes, acoustics, distribution, and molecular data, and the description of a new species
Figure 6. Bayesian inference (BI) of the phylogeny of the species included in the study, based on a fragment of the cytochrome oxidase subunit I (COI) gene. Priors were set to match a GTR + I + G model. The neighbour-joining (NJ) and maximum-parsimony (MP) analyses both resulted in the same tree topology shown here. Monticolaria was used as the out-group in all analyses. Support values indicated on the tree are from (upper to lower) the BI, NJ, and MP analyses, respectively. A total of 1000 bootstrap replicates were conducted in the NJ and MP analyses.
Figure 4 in A new genus of African Acrometopini (Tettigoniidae: Phaneropterinae) based on morphology, chromosomes, acoustics, distribution, and molecular data, and the description of a new species
Figure 4. Oscillograms of the calling song of Altihoratosphaga species, showing one element A and one element B from each species. See Figure 3 for the position of this song detail.
Figure 2 in A new genus of African Acrometopini (Tettigoniidae: Phaneropterinae) based on morphology, chromosomes, acoustics, distribution, and molecular data, and the description of a new species
Figure 2. Stridulatory files of Altihoratosphaga species (wing articulation to the right). A, Altihoratosphaga hanangensis sp. nov. (paratype). B, Altihoratosphaga nou (CH7091). C, Altihoratosphaga montivaga (CH6890). D, Altihoratosphaga nomima (Ruaha National Park). Scale bar: 1 mm.
Figure 1. A–C, C in A new genus of African Acrometopini (Tettigoniidae: Phaneropterinae) based on morphology, chromosomes, acoustics, distribution, and molecular data, and the description of a new species
Figure 1. A–C, C-banded cells of males. A, Altihoratosphaga montivaga – mitotic metaphase, arrows indicate interstitial polymorphism in the quantity of C-bands in pairs L3 and M6/7; B, B chromosome; X, X chromosome. B, Horatosphaga parensis – diakinesis with heteromorphic C-band in the L3 bivalent; X, X chromosome. C, Monticolaria kilimandjarica – diakinesis with telomeric C-bands (arrows); B, B chromosome; X, X chromosome.
Figure 7. A in A new genus of African Acrometopini (Tettigoniidae: Phaneropterinae) based on morphology, chromosomes, acoustics, distribution, and molecular data, and the description of a new species
Figure 7. A, male Altihoratosphaga hanangensis sp. nov. B, male Altihoratosphaga nou. C, male Altihoratosphaga montivaga. D, habitat of A. hanangensis sp. nov. on Mt Hanang, Tanzania. E, female A. nou. F, female A. montivaga.
FIGURE 4. Trochanteria gomezi Canals, 1933, male. A in Taxonomic notes, distribution update and the first chromosomal analysis of Vectius niger (Simon, 1880) and Trochanteria gomezi Canals, 1933 (Araneae: Trochanteriidae)
FIGURE 4. Trochanteria gomezi Canals, 1933, male. A chelicera, ventral view, B tarsal organ, cymbium of palp C–F palp, C ventral view, D same, detail, E retro-ventral view, detail F retrolateral view. Abbreviations: C, cymbium; EB, embolar base; EPP, embolar base proximal projection; MA, median apophysis; RTA, retrolateral tibial apophysis; T, tegulum; TP, tegular projection.
FIGURE 3 in Taxonomic notes, distribution update and the first chromosomal analysis of Vectius niger (Simon, 1880) and Trochanteria gomezi Canals, 1933 (Araneae: Trochanteriidae)
FIGURE 3. Geographical distribution of Vectius niger (Simon, 1880) in the Neotropical region. The grey area indicates the country Brazil.
FIGURE 7 in Taxonomic notes, distribution update and the first chromosomal analysis of Vectius niger (Simon, 1880) and Trochanteria gomezi Canals, 1933 (Araneae: Trochanteriidae)
FIGURE 7. Geographical distribution of Trochanteria gomezi Canals, 1933, in the Neotropical region. The grey area indicates the country Brazil.
FIGURE 8. A–F in Taxonomic notes, distribution update and the first chromosomal analysis of Vectius niger (Simon, 1880) and Trochanteria gomezi Canals, 1933 (Araneae: Trochanteriidae)
FIGURE 8. A–F. Vectius niger (Simon, 1880), female. A, spermatogonial metaphase 2n♁=22, X₁X₂. B, oogonial metaphase 2n♀=24 X₁X₁X₂X₂. C, spermatogonial metaphase showing difference in condensation of two elements (arrows). D, oogonial metaphase with secondary constrictions (arrowheads). E, spermatocytes I in metaphase with 10 autosomal bivalents with one terminal chiasm each and two sexual univalents (X₁and X₂). F, spermatocytes II in metaphase with n=12=10+ X₁X₂ (top) and n=10 (bottom). G–H. Trochanteria gomezi Canals 1933. G, spermatogonial metaphase 2n♁=22, X₁X₂. H, oogonial metaphase 2n♀=24 X₁X₁X₂X₂. Scale bar 5 µm.
FIGURE 5. Trochanteria gomezi Canals, 1933, female. A–B chelicerae, A ventral view, B in Taxonomic notes, distribution update and the first chromosomal analysis of Vectius niger (Simon, 1880) and Trochanteria gomezi Canals, 1933 (Araneae: Trochanteriidae)
FIGURE 5. Trochanteria gomezi Canals, 1933, female. A–B chelicerae, A ventral view, B same, detail of teeth, C pedipalp, claw, D epigynum, ventral view. Abbreviations: A, atrium; ELF, spigynal lateral field; EMF, epigynal median field.
FIGURE 1 in Taxonomic notes, distribution update and the first chromosomal analysis of Vectius niger (Simon, 1880) and Trochanteria gomezi Canals, 1933 (Araneae: Trochanteriidae)
FIGURE 1. Vectius niger (Simon, 1880). A–C Male. A–B palp: A ventral view. B retrolateral view. C, cheliceral teeth, ventral view, D Female, epigynum, ventral view. Abbreviations: A, atrium; MA, median apophysis; C, cymbium; EB, embolar base; ELF, spigynal lateral field; EMF, epigynal median field; EPP, embolar base proximal projection; MA, median apophysis; RTA, retrolateral tibial apophysis; T, tegulum.
Chromosome-level Reference Genome of the Critically Endangered Tree Kmeria septentrionalis
<p><i>Kmeria septentrionalis, </i>a critically endangered tree endemic to Guangxi in China and listed on the International Union for Conservation of Nature's Red List, suffers from a lack of genetic information and a paucity of high-quality genome data. In our study, we construct and annotate a complete <i>K. septentrionalis</i> genome at the chromosome level, assess its quality, and contextualize it with the genomic data of other relative plants. The genome is measured at 2.57 Gb with a contig N50 of 11.93 Mb. Using Hi-C guided genome assembly, we assembled 496 out of the initial 705 raw contigs into 19 pseudochromosomes that have a scaffold N50 of 135.08 Mb. The assembled 2.54 Gb anchored genome has achieved 98.9% completeness, and contains 35,927 genes, of which 94.15% could be functional annotated. </p>
Multiplex DNA fluorescence in situ hybridization to analyze maternal vs. paternal C. elegans chromosomes - Gutnik et al - Tracing Datasets
<p>Tracing datasets (MATLAB Structure Format) from <i>C.elegans</i> N2 and HI embryos, as well as N2:HI and HI:N2 hybrid embryos presented in Gutnik et al.2024 (<strong>Multiplex DNA fluorescence in situ hybridization to analyze maternal vs. paternal </strong><i><strong>C. elegans</strong></i><strong> chromosomes)</strong></p><p> </p><p> </p><p> </p>
Multiplex DNA fluorescence in situ hybridization to analyze maternal vs. paternal C. elegans chromosomes - Gutnik et al - Raw Imaging data
<p>Raw Imaging data for all figures presented in Gutnik et al.2024 (<strong>Multiplex DNA fluorescence in situ hybridization to analyze maternal vs. paternal </strong><i><strong>C. elegans</strong></i><strong> chromosomes)</strong></p>
Simulation data for Loop-extruders alter bacterial chromosome topology to direct entropic forces for segregation
<p>Polymer configuration data from simulations of loop-extrusion on a replicating bacterial chromosome, used for the manuscript "Loop-extruders alter bacterial chromosome topology to direct entropic forces for segregation". New version includes data for more specific off-loading, as well as fewer SMCs.</p>
The reference chromosome genome for Zhengitettix transpicula
<p>The reference chromosome genome for Zhengitettix transpicula. The HIC genome and the gff3 annotation file.</p>
FIGURES 13–22 in A novel multiple sex chromosome system in Orthoptera, found in the tree cricket Oecanthus rubromaculatus Zefa, 2022 (Grylloidea, Oecanthidae)
FIGURES 13–22. Schematic model showing the phases of karyotypic derivation since the ancestral karyotype of 2n = 21, X0♂/ XX♀ based com Oecanthus pictus, from to 2n = 12, X1X2X3Y1Y2Y3♂/X1X1X2X2X3X3♀ of the Oecanthus rubromaculatus. 13, Ancestral karyotype with 2n = 21, X0♂/XX♀; 14, Heterozygous karyotype with 2n = 18, X0♂ after Robertsonian translocation between pair 4/5, 6/7 and 8/9; 15–16, Homozygous karyotype with 2n = 15, X0♂ after reciprocal translocation between pair 4/5, 6/7 and 8/9 (chromosomes in the box are involved in tandem fusion to form the neo-XY sex-system); 17–18, Karyotype with 2n = 14, neo-XY♂ (chromosomes in the box are involved in Robertsonian translocation to form the neo-X1X2Y♂ sex-system); 19–20, Karyotype with 2n = 13, X1X2Y♂ (chromosomes in the box are involved in Robertsonian translocation to form the neo-X1X2Y1Y2♂ sex-system found in individuals from São Francisco de Paula); 21–22, Karyotype with 2n = 12, X1X2Y1Y2♂ (chromosomes in the box are involved in translocation to form the neo-X1X2X3Y1Y2Y3♂ sex-system found in individuals from Pelotas). Chromosome breakpoints for rearrangements were indicated with yellow lines; L = small centromeric chromosome lost in the process.
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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.