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441 results for “tardigrades”
FIGURES 15–16 in Two new tardigrade species from Romania (Eutardigrada: Milnesiidae, Macrobiotidae), with some remarks on secondary sex characters in Milnesium dornensis sp. nov.
FIGURES 15–16. Minibiotus diversus sp. nov. habitus: 15—dorsal view; 16—ventral view.
FIGURES 1–2 in Two new tardigrade species from Romania (Eutardigrada: Milnesiidae, Macrobiotidae), with some remarks on secondary sex characters in Milnesium dornensis sp. nov.
FIGURES 1–2. Milnesium dornensis sp. nov. habitus: 1—female (ventral view); 2—male (ventral view).
FIGURES 30–31 in Two new tardigrade species from Romania (Eutardigrada: Milnesiidae, Macrobiotidae), with some remarks on secondary sex characters in Milnesium dornensis sp. nov.
FIGURES 30–31. Minibiotus diversus sp. nov.: 30—egg; 31—egg processes.
FIGURES 13–18 in Re-description of the Arctic tardigrade Tenuibiotus voronkovi (Tumanov, 2007) (Eutardigrada; Macrobiotidea), with the first molecular data for the genus
FIGURES 13–18. Tenuibiotus voronkovi—egg process details, different shape of processes seen in PCM.
FIGURES 7–8 in Tardigrades from Nahuel Huapi National Park (Argentina, South America) with descriptions of two new Macrobiotidae species
FIGURES 7–8. Mesobiotus pseudoblocki sp. nov.: 7—claws I (paratype); 8—claws IV (holotype).
FIGURE 5 in Description of a model tardigrade Paramacrobiotus metropolitanus sp. nov (Eutardigrada) from Japan with a summary of its life history, reproduction and genomics
FIGURE 5. Dorsal cuticle apodemes (muscle attachments/cribriform areas)
Fig. 5 in Sisubiotus hakaiensis sp. nov. (Tardigrada, Macrobiotidae), a new tardigrade species from Calvert Island (British Columbia, Canada)
Fig. 5. Sisubiotus hakaiensis sp. nov. Paratype (JYUt.S418_SL1_A). Eggs in PCM. A. Egg surface. B. Reticulated chorion between areolations. C. Egg process with labyrinthine layer (arrowhead); seen as reticulation. D. Egg process in section showing labyrinthine layer (arrowhead). Scale bars: A = 50 μm; B = 5 μm; C = 20 μm; D = 10 μm.
Fig. 2 in Sisubiotus hakaiensis sp. nov. (Tardigrada, Macrobiotidae), a new tardigrade species from Calvert Island (British Columbia, Canada)
Fig. 2. Sisubiotus hakaiensis sp. nov., habitus in PCM. A. Holotype (JYUt.S1911_SL5_B, Hoyer's medium), dorso-ventral projection. B*. Paratype (JYUt.S1911_SL3_A). Pulvinus (indented arrowhead) and granulation (arrowhead) on the internal side of leg I. C–D. Paratype (JYUt.S1911_SL4_C). C. Granulation on external side of leg II. D. Granulation on claws IV. Deep-focus images obtained by stacking are indicated in the figures caption with an asterisk (*). Scale bars: A = 100 μm; B–D = 20 μm.
FIGURE 1 in Doryphoribius chetumalensis sp. nov. (Eutardigrada: Isohypsibiidae) a new tardigrade species discovered in an unusual habitat of urban areas of Mexico
FIGURE 1. Sampling sites in Chetumal (Mexico). A) Sampling site S1. B) Sampling site S2.
FIGURE 1 in New records of tardigrades from Colombia with the description of Paramacrobiotus sagani sp. nov. and Doryphoribius rosanae sp. nov.
FIGURE 1. Map of northern Colombia indicating sites of collection.
FIGURE 1 in A new marine tardigrade species (Heterotardigrada: Batillipedidae) from the southeast coast of India
FIGURE 1. Map showing the sampling location of Batillipes chandrayaani sp. nov.
FIGURE 2 in A new marine tardigrade species (Heterotardigrada: Batillipedidae) from the southeast coast of India
FIGURE 2. Batillipes chandrayaani sp. nov., drawing of holotype female, dorsal view [MB/SBN/VD19].
Table 1 in Removal of historical taxonomic bias and its impact on biogeographic analyses: a case study of Neotropical tardigrade fauna
<p><b>Table 1.</b> Details regarding species accumulation curves (SACs) of each biogeographic area for all data (‘false cosmopolitan’ and ‘indigenous species’) and only ‘indigenous data’. Estimated total species’ richness (asymptote) and residual sum-of-squares (RSS) were obtained when fitting each curve to an asymptotic model.</p><table><tbody><tr><th><b>Area</b></th><th><b>Dataset</b></th><th><b>Number of surveys</b></th><th><b>Observed richness</b></th><th><b>Estimated total number of species (asymptote)</b></th><th><b>Residual sum-of-squares (RSS)</b></th></tr></tbody><tbody><tr><th>Neotropical region</th><td>All data (‘false cosmopolitan’ and ‘indigenous species’)</td><td>103</td><td>186</td><td>245</td><td>187.600</td></tr><tr><td>‘Indigenous data</td><td>78</td><td>96</td><td>155</td><td>15.750</td></tr><tr><th>Andean region</th><td>All data (‘false cosmopolitan’ and ‘indigenous species’)</td><td>50</td><td>105</td><td>141</td><td>40.710</td></tr><tr><td>‘Indigenous data</td><td>41</td><td>43</td><td>70</td><td>2.428</td></tr><tr><th>South America transition zone</th><td>All data (‘false cosmopolitan’ and ‘indigenous species’)</td><td>38</td><td>66</td><td>105</td><td>3.543</td></tr><tr><td>‘Indigenous data</td><td>24</td><td>26</td><td>65</td><td>0.078</td></tr><tr><th>Mexican transition zone</th><td>All data (‘false cosmopolitan’ and ‘indigenous species’)</td><td>13</td><td>41</td><td>84</td><td>0.004</td></tr><tr><td>‘Indigenous data’</td><td>6</td><td>11</td><td>55</td><td><0.001</td></tr></tbody></table>
Data from: Analysis of the opsin repertoire in the tardigrade Hypsibius dujardini provides insights into the evolution of opsin genes in Panarthropoda
<p>Screening of a deeply sequenced transcriptome using Illumina sequencing as well as the genome of the tardigrade <em>Hypsibius exemplaris </em>(referred to as <em>Hypsibius dujardini </em>in the published article) revealed a set of five opsin genes.To clarify the phylogenetic position of these genes and to elucidate the evolutionary history of opsins in Panarthropoda (Onychophora +Tardigrada+Arthropoda), we reconstructed the phylogeny of broadly sampled metazoan opsin genes using maximum likelihood and Bayesian inference methods in conjunction with carefully selected substitution models. According to our findings, the opsin repertoire of <em>H. exemplaris</em> comprises representatives of all three major bilaterian opsin clades, including one r-opsin, three c-opsins, and a Group 4 opsin (neuropsin/opsin-5). The identification of the tardigrade ortholog of neuropsin/opsin-5 is the first record of this opsin type in a protostome,but our screening of available metazoan genomes revealed that it is also present in other protostomes. Our opsin phylogeny further suggests that two r-opsins, including an "arthropsin", were present in the last common ancestor of Panarthropoda. Although both r-opsin lineages were retained in Onychophora and Arthropoda, the arthropsin was lost in Tardigrada. The single (most likely visual) r-opsin found in <em>H. exemplaris</em> supports the hypothesis of monochromatic vision in the panarthropod ancestor, whereas two duplications of the ancestral panarthropod c-opsin have led to three c-opsins in tardigrades. Although the early-branching nodes are unstable within the metazoans, our findings suggest that the last common ancestor of Bilateria possessed six opsins: Two r-opsins, one c-opsin, and three Group 4 opsins, one of which (Go opsin) was lost in the ecdysozoan lineage.</p>
Figures 8-11 from: Kaczmarek Ł, Zawierucha K, Dziamięcki J, Jakubowska N, Michalczyk Ł (2014) New tardigrade records for the Baltic states with a description of Minibiotus formosus sp. n. (Eutardigrada, Macrobiotidae). ZooKeys 408: 81-105. https://doi.org/10.3897/zookeys.408.6612
Figures 8-11 - Minibiotus formosus sp. n.: 8 habitus (holotype, ventral view) 9 dorsal cuticle with pores (holotype) 10–11 bucco-pharyngeal apparatus (10 dorso-ventral projection, paratype 11 lateral view, paratype). All PCM.
Figures 6-7 from: Kaczmarek Ł, Zawierucha K, Dziamięcki J, Jakubowska N, Michalczyk Ł (2014) New tardigrade records for the Baltic states with a description of Minibiotus formosus sp. n. (Eutardigrada, Macrobiotidae). ZooKeys 408: 81-105. https://doi.org/10.3897/zookeys.408.6612
Figures 6-7 - Hypsibius cf. scabropygus Cuénot, 1929: 6 bucco-pharyngeal apparatus (dorso-ventral projection, ventral placoids in the insert) 7 claws IV (arrow indicates a small cuticular bar near the posterior claw). (Both PCM).
Figures 12-15 from: Kaczmarek Ł, Zawierucha K, Dziamięcki J, Jakubowska N, Michalczyk Ł (2014) New tardigrade records for the Baltic states with a description of Minibiotus formosus sp. n. (Eutardigrada, Macrobiotidae). ZooKeys 408: 81-105. https://doi.org/10.3897/zookeys.408.6612
Figures 12-15 - Minibiotus formosus sp. n.: 12 leg II with claws, granulation (arrowhead) and a single large pore (arrow) (holotype) 13 claws IV (paratype) 14 egg (mid-section) 15 egg surface with processes. All PCM.
Figures 1-5 from: Kaczmarek Ł, Zawierucha K, Dziamięcki J, Jakubowska N, Michalczyk Ł (2014) New tardigrade records for the Baltic states with a description of Minibiotus formosus sp. n. (Eutardigrada, Macrobiotidae). ZooKeys 408: 81-105. https://doi.org/10.3897/zookeys.408.6612
Figures 1-5 - Hypsibius cf. scabropygus Cuénot, 1929: 1 habitus (dorso-lateral view) 2–4 caudo-dorsal cuticle with distinct sculpturing – tubercles and tubercles merged into platelets 5 a single caudo-dorsal platelet. (1–3: PCM, 4–5: SEM).
Data from: Tolerance to gamma radiation in the tardigrade Hypsibius dujardini from embryo to adult correlate inversely with cellular proliferation
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Data from: Analysis of the opsin repertoire in the tardigrade Hypsibius dujardini provides insights into the evolution of opsin genes in Panarthropoda
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