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489 results for “appendages”
The genome of a daddy-long-legs (Opiliones) illuminates the evolution of arachnid appendages
<p>Chelicerate arthropods exhibit dynamic genome evolution, with ancient whole genome duplication (WGD) events affecting several orders. Yet, genomes remain unavailable for a number of poorly studied orders, such as Opiliones (daddy-long-legs), which has hindered comparative study. We assembled the first opilionid draft genome for the species <i>Phalangium opilio</i>, which bears elongate, prehensile appendages, made possible by numerous distal articles called tarsomeres. Here, we show that the genome of <i>P. opilio</i> exhibits a single Hox cluster and no evidence of WGD. To investigate the developmental genetic basis for the quintessential trait of this group—the elongate legs—we interrogated the function of the Hox genes <i>Deformed </i><u>(</u><i>Dfd</i>)<i> </i>and <i>Sex combs reduced</i> (<i>Scr</i>), and a homolog of <i>Epidermal growth factor receptor </i>(<i>Egfr</i>). Knockdown of <i>Dfd </i>incurred homeotic transformation of two pairs of legs into pedipalps, with dramatic shortening of leg segments in the longest leg pair, whereas homeosis in L3 is only achieved upon double <i>Dfd+Scr</i> knockdown. Knockdown of <i>Egfr</i> incurred shortened appendages and the loss of tarsomeres. The similarity of <i>Egfr </i>loss-of-function phenotypic spectra in insects and this arachnid suggest that repeated cooption of EGFR signaling underlies the independent gains of supernumerary tarsomeres across the arthropod tree of life.</p>
FIGURE 8. Vulcanolepas scotiaensis Appendages and trophi. a in Vulcanolepas scotiaensis sp. nov., a new deep-sea scalpelliform barnacle (Eolepadidae: Neolepadinae) from hydrothermal vents in the Scotia Sea, Antarctica
FIGURE 8. Vulcanolepas scotiaensis Appendages and trophi. a: Cirrus I; b: Cirrus II. c Right second maxilla; d: Right maxilla (or maxillule); e: Right mandible, showing modification of the two lower teeth and the inferior angle into a comb-like structure, a characteristic feature of the neolepadines noted in Southward & Newman, (1998: 261). f: Intermediate segment of cirrus VI, showing six pairs of long, simple setae and below these, three pairs of successively shorter, finer setae (setae truncated). g: Uni-articulate caudal appendage. (Note that in these diagrams, the density of the setae on the trophi is reduced). From JC42-F-0396.
FIGURE. Petal appendages and longitudinal callosities of Hylaeaicum and genera of the "Nidularioid complex", and Aechmea alliance. A. H. eleutheropetalum (Leme 4491). B. H. myrmecophilum (Leme 2555). C. H. wurdackii (Leme 2567). D. H. tarapotoense (Leme 1977). E. H. eleutheropetalum (Leme 9736). F. H. pendulum (Leme 1979). G. H. aff. myrmecophilum (Leme 2553). H. Aechmea aculeatosepala (Leme 3235). I. Neoregelia pontualii (Leme 5520). J. Nidularium amazonicum (Leme 4447). K. Canistrum aurantiacum (Leme 567). L. Canistrum fosterianum (Leme 3289). M. Wittrockia superba (Leme 4751). Bars = 2 mm. in Re-evaluation of the Amazonian Hylaeaicum (Bromeliaceae: Bromelioideae) based on neglected morphological traits and molecular evidence
FIGURE. Petal appendages and longitudinal callosities of Hylaeaicum and genera of the "Nidularioid complex", and Aechmea alliance. A. H. eleutheropetalum (Leme 4491). B. H. myrmecophilum (Leme 2555). C. H. wurdackii (Leme 2567). D. H. tarapotoense (Leme 1977). E. H. eleutheropetalum (Leme 9736). F. H. pendulum (Leme 1979). G. H. aff. myrmecophilum (Leme 2553). H. Aechmea aculeatosepala (Leme 3235). I. Neoregelia pontualii (Leme 5520). J. Nidularium amazonicum (Leme 4447). K. Canistrum aurantiacum (Leme 567). L. Canistrum fosterianum (Leme 3289). M. Wittrockia superba (Leme 4751). Bars = 2 mm.
FIGURE. Seeds of genera and subgenera of Bromelioideae. A–C. Bromelia aff. reversacantha (Leme 4609). A. Longitudinal section of the fruits with seeds connected to placenta by the funicular appendage. B. Seeds with the funicular appendage manually detached. C. Frontal view of the distal funicular pole of the seeds with the funicular appendage backwardly inrolled to the seeds and attached under an aril-like coat. D. Disteganthus lateralis (Leme 9390). E. Aechmea of the "Streptocalycoid complex": A. nidularioides (Leme 2150). F. Aechmea subg. Chevaliera s.l.: A. digitata (Leme 4019). G. Araeococcus subg. Araeococcus: A. flagellifolius (Leme 9501). H. Pseudaraeococcus lageniformis (Leme 9603). I. Cryptanthus pickelii (Leme 3873). J. Fernseea bocainensis (Leme 1422). K. Greigia stenolepis (Leme 9738). L. Neoglaziovia variegata (Leme 9631). M. Aechmea subg. Chevaliera s.l.: A. ornata (Leme 6760). N. Billbergia subg. Billbergia: B. amoena var. stolonifera (Leme 215-B). O. Billbergia subg. Helicodea: B. zebrina (Leme 128). P. Quesnelia subg. Quesnelia: Q. quesneliana (Leme 107). Q. Portea petropolitana var. noetiigii (Leme 5277). R. Billbergia subg. Billbergia: B. tweedieana (Leme 278). S. Quesnelia subg. Billbergiopsis: Q. liboniana (Leme 2361). T. Wittmackia lingulatoides (Leme 9585). Bars = 1 mm. in Re-evaluation of the Amazonian Hylaeaicum (Bromeliaceae: Bromelioideae) based on neglected morphological traits and molecular evidence
FIGURE. Seeds of genera and subgenera of Bromelioideae. A–C. Bromelia aff. reversacantha (Leme 4609). A. Longitudinal section of the fruits with seeds connected to placenta by the funicular appendage. B. Seeds with the funicular appendage manually detached. C. Frontal view of the distal funicular pole of the seeds with the funicular appendage backwardly inrolled to the seeds and attached under an aril-like coat. D. Disteganthus lateralis (Leme 9390). E. Aechmea of the "Streptocalycoid complex": A. nidularioides (Leme 2150). F. Aechmea subg. Chevaliera s.l.: A. digitata (Leme 4019). G. Araeococcus subg. Araeococcus: A. flagellifolius (Leme 9501). H. Pseudaraeococcus lageniformis (Leme 9603). I. Cryptanthus pickelii (Leme 3873). J. Fernseea bocainensis (Leme 1422). K. Greigia stenolepis (Leme 9738). L. Neoglaziovia variegata (Leme 9631). M. Aechmea subg. Chevaliera s.l.: A. ornata (Leme 6760). N. Billbergia subg. Billbergia: B. amoena var. stolonifera (Leme 215-B). O. Billbergia subg. Helicodea: B. zebrina (Leme 128). P. Quesnelia subg. Quesnelia: Q. quesneliana (Leme 107). Q. Portea petropolitana var. noetiigii (Leme 5277). R. Billbergia subg. Billbergia: B. tweedieana (Leme 278). S. Quesnelia subg. Billbergiopsis: Q. liboniana (Leme 2361). T. Wittmackia lingulatoides (Leme 9585). Bars = 1 mm.
FIGURE. Fruits and seeds of Hylaeaicum. A–B. H. myrmecophilum (Leme 2555). A. Longitudinal section of the fruits preserving attached sepals. B. Longitudinal section of the fruits with seeds exposed and yet connected to the placenta by the funicular appendage. C. Ovules and seeds of H. margaretae connected to the placenta by the funicular appendage (Leme 2331). D. H. eleutheropetalum (Leme 9736). E. H. myrmecophilum (Leme 2555). F. H. wurdackii (Leme 2567). G. H. levianum (Leme 2777). H. H. levianum (Leme 5639-A). I. H. eleutheropetalum (Leme 4491). J. H. tarapotoense (Leme 1977). K. H. pendulum (Leme 1979). Bars = 5 mm. in Re-evaluation of the Amazonian Hylaeaicum (Bromeliaceae: Bromelioideae) based on neglected morphological traits and molecular evidence
FIGURE. Fruits and seeds of Hylaeaicum. A–B. H. myrmecophilum (Leme 2555). A. Longitudinal section of the fruits preserving attached sepals. B. Longitudinal section of the fruits with seeds exposed and yet connected to the placenta by the funicular appendage. C. Ovules and seeds of H. margaretae connected to the placenta by the funicular appendage (Leme 2331). D. H. eleutheropetalum (Leme 9736). E. H. myrmecophilum (Leme 2555). F. H. wurdackii (Leme 2567). G. H. levianum (Leme 2777). H. H. levianum (Leme 5639-A). I. H. eleutheropetalum (Leme 4491). J. H. tarapotoense (Leme 1977). K. H. pendulum (Leme 1979). Bars = 5 mm.
FIGURE 2. Chusquea contrerasii. A. Bud complement showing buds and lateral root appendages. B. Branch complement showing infravaginal branching and branches. C in Chusquea contrerasii and C. guzmanii (Poaceae, Bambusoideae, Bambuseae, Chusqueinae), two new endemic species from Jalisco, Mexico
FIGURE 2. Chusquea contrerasii. A. Bud complement showing buds and lateral root appendages. B. Branch complement showing infravaginal branching and branches. C. Apical culm fragment, showing branches and foliage leaves. D. Mid culm, showing branches and foliage leaves. E. Synflorescences and spikelets. Photos by Eduardo Ruiz-Sanchez (A-D) and Alejandra Flores-Argüelles (E).
FIGURE. Cyathium parts: involucre, bracteoles, glands, appendages, staminate flowers, pistillate flowers (styles) and capsule. On the left an example of cyathia in E. maculata (Saint Paul, photo by Katy Chayka, © www.MinnesotaWildflowers.info). Redrawn after Arrigoni (2010). in Synopsis of Euphorbia section Anisophyllum (Euphorbiaceae) in Italy, with an insight on variation of distribution over time in Tuscany
FIGURE. Cyathium parts: involucre, bracteoles, glands, appendages, staminate flowers, pistillate flowers (styles) and capsule. On the left an example of cyathia in E. maculata (Saint Paul, photo by Katy Chayka, © www.MinnesotaWildflowers.info). Redrawn after Arrigoni (2010).
heart_atrial_appendage
<p>small RNASeq dataset from GTEX heart atrial appendage data.</p>
Associations Between Dental Anomalies and Ocular, Cutaneous and Skin Appendages Features
ClinicalTrials.gov study NCT06950619. IPD Sharing: NO. Countries: 1. Publications: 1.
Effect of Empirical Left Atrial Appendage Isolation on Long-term Procedure Outcome in Patients With Persistent or Long-standing Persistent Atrial Fibrillation Undergoing Catheter Ablation
ClinicalTrials.gov study NCT01362738. IPD Sharing: Not stated. Countries: 1. Publications: 1.
Intracardiac Versus Transesophageal Echocardiography for Left Atrial Appendage Occlusion Combined With Radiofrequency Ablation
ClinicalTrials.gov study NCT04391504. IPD Sharing: Not stated. Countries: 1. Publications: 1.
LAmbre Versus AMPLATZER Amulet Left AtrIal Appendage Occluder for StRoke ProphylaxIs
ClinicalTrials.gov study NCT06060912. IPD Sharing: NO. Countries: 1. Publications: 15.
Evaluation of Cardiac Hemodynamic Modifications During Temporary Left Atrial Appendage Occlusion
ClinicalTrials.gov study NCT02814851. IPD Sharing: Not stated. Countries: 1. Publications: 11.
Left Atrial Appendage Occlusion for AF Patients Unable to Use Oral Anticoagulation Therapy
ClinicalTrials.gov study NCT04676880. IPD Sharing: YES. Countries: 1. Publications: 1.
Left-Atrium-Appendage Occluder Register - GErmany
ClinicalTrials.gov study NCT02230748. IPD Sharing: NO. Countries: 1. Publications: 2.
I Can sEe Left Atrial Appendage (ICELAA) Clinical Study
ClinicalTrials.gov study NCT04196335. IPD Sharing: NO. Countries: 4. Publications: 1.
Computational Simulation to Plan for Percutaneous Left Atrial Appendage Closure
ClinicalTrials.gov study NCT04180605. IPD Sharing: NO. Countries: 7. Publications: 10.
Left Atrial Appendage Exclusion for Prophylactic Stroke Reduction Trial
ClinicalTrials.gov study NCT05478304. IPD Sharing: NO. Countries: 10. Publications: 1.
Angioplasty Guidewire-Assisted Versus Conventional Transseptal Puncture for Left Atrial Appendage Occlusion
ClinicalTrials.gov study NCT05125159. IPD Sharing: NO. Countries: 1. Publications: 1.
Posterior Wall And Left Atrial Appendage Empiric Electrical Isolation for Non-Paroxysmal Atrial Fibrillation
ClinicalTrials.gov study NCT04216667. IPD Sharing: NO. Countries: 7. Publications: 24.
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Allen Brain Atlas
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Annotated Behaviour and Observability Dataset (ABODe)
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