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6 results for “Limulus polyphemus”
Chromosome-level genome assembly of a living fossil, the Atlantic Horseshoe Crab Limulus polyphemus
<p>Associated data for male Atlantic horseshoe crab <em>Limulus polyphemus </em>chromosome-scale genome and annotations, including genome (FASTA), structural gene annotations (GFF3), functional annotations (TSV), coding sequences (CDS), protein sequences (PEP), RepeatModeler library (FA.CLASSIFIED), and repeat annotations (OUT).</p> <p>qaLimPoly3.1 - Publication analyses were completed with this genome. </p> <p>qaLimPoly3.3 - This is the current reference assembly. Assembly updated with Sanger sequencing based edits of Chr11 and removal of adapter contamination. Gene annotations updated with curation of canonical proclotting genes. Repeat annotations updated with curation of repeat elements ltr-1_family-1, ltr-1_family-4, and ltr-1_family-26. </p> <p>HSC_Genomic_FacC_860F_PREMIX_CNNJ42_1.ab1 and HSC_Genomic_FacC_1544R_PREMIX_CNNJ43_2.ab1 are Sanger sequenced PCR products for Lp_g42129 (Factor C) from primers FacC_860F.fasta and FacC_1544R.fasta.</p>
Figure 5. Limulus polyphemus Linnaeus, 1758 in Revised systematics of Palaeozoic 'horseshoe crabs' and the myth of monophyletic Xiphosura
Figure 5. Limulus polyphemus Linnaeus, 1758 from the Recent of North America. A, ventral view of opisthosoma showing opercula. B, dorsal view of opisthosoma with prosoma and telson removed. C, schematic of opisthosoma in dorsal view with apodemes (shallow pits indicating sites of muscle attachment) marked in black and the insertion points of the opercula shown by grey ovals. D, ventral view of opisthosoma with prosoma, telson, and opercula removed. It can be clearly seen that the opercula are not attached to the lateral regions of the opisthosoma. Scale bars = 10 mm.
Data from: Between-population differences in multi-stressor tolerance during embryo development in the American horseshoe crab, Limulus polyphemus
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Data from: A 3D anatomical atlas of appendage musculature in the chelicerate arthropod Limulus polyphemus
Limulus polyphemus, an archetypal chelicerate taxon, has interested both biological and paleontological researchers due to its unique suite of anatomical features and as a useful modern analogue for fossil arthropod groups. To assist the study and documentation of this iconic taxon, we present a 3D atlas on the appendage musculature, with specific focus on the muscles of the cephalothoracic appendages. As L. polyphemus appendage musculature has been the focus of extensive study, depicting the muscles in 3D will facilitate a more complete understanding thereof for future researchers. A large museum specimen was CT scanned to illustrate the major exoskeletal features of L. polyphemus. Micro-CT scans of iodine-stained appendages from fresh, non-museum specimens were digitally dissected to interactively depict appendage sections and muscles. This study has revealed the presence of two new muscles: one within the pushing leg, located dorsally relative to all other patella muscles, and the other within the male pedipalp, located in the modified tibiotarsus. This atlas increases accessibility to important internal and external morphological features of L. polyphemus and reduces the need for destructive fresh tissue dissection of specimens. Scanning, digitally dissecting, and documenting taxa in 3D is a pivotal step towards creating permanent digital records of life on Earth.
Data from: Opsin repertoire and expression patterns in horseshoe crabs: evidence from the genome of Limulus polyphemus (Arthropoda: Chelicerata)
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Data from: A 3D anatomical atlas of appendage musculature in the chelicerate arthropod Limulus polyphemus
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