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Wikipedia
https://nl.wikipedia.org/wiki/Spadella_cephaloptera
Spadella cephaloptera - Wikipedia
WEBSpadella cephaloptera is een soort in de taxonomische indeling van de pijlwormen. De worm is langwerpig (torpedovormig) en bedekt met een cuticula . Het lichaam bestaat uit …
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Images of "spadella Cephaloptera"

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Spadella cephaloptera (Busch, 1851) - An Arrow worm (Chaetognatha images)
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Spadella cephaloptera (Busch, 1851) - An Arrow worm (Chaetognatha images)
aphotomarine.com
Spadella cephaloptera (Busch, 1851) - An Arrow worm (Chaetognatha images)
researchgate.net
1: A. Spadella cephaloptera; drawing from Hertwig (1880) with the ...
aphotomarine.com
Spadella cephaloptera (Busch, 1851) - An Arrow worm (Chaetognatha images)
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WoRMS
https://www.marinespecies.org/aphia.php?p=taxdetails&id=105468
Spadella cephaloptera (Busch, 1851) - World Register of Marine …
WEBSpadella cephaloptera (Busch, 1851). Accessed at: https://www.marinespecies.org/aphia.php?p=taxdetails&id=105468 on 2024-06-03
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Occurrence of Spadella cephaloptera During One Year at …
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(PDF) New records and a new species of Spadella …
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Wikipedia
https://en.wikipedia.org/wiki/Spadella
Spadella - Wikipedia
Overview
Species
The genus contains 18 species:
• Spadella angulata Tokioka, 1951
• Spadella antarctica Casanova, 1991
• Spadella birostrata Casanova, 1987
Wikipedia · Text under CC-BY-SA license
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Bathyspadella - Wikipedia
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Spadella cephaloptera
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Where is Spadella found?
Spadella is a genus of chaetognaths belonging to the family Spadellidae. The species of this genus are found in Europe, Northern America, Pacific Ocean. ^ a b c "Spadella Langerhans, 1880". Global Biodiversity Information Facility. Retrieved 6 January 2024.
Spadella - Wikipedia
en.wikipedia.org
Does Spadella cephaloptera have a mitochondrial genome?
To answer this fundamental question, we determined the complete mitochondrial DNA genome of Spadella cephaloptera. We report three unique features: it is the smallest metazoan mitochondrial genome known and lacks both atp8 and atp6 and all tRNA genes. Furthermore phylogenetic reconstructions show that Chaetognatha belongs to protostomes.
Identification of Chaetognaths as Protostomes Is Supported by the
academic.oup.com
Where was Spadella chaetognath collected?
Specimens of a benthic chaetognath species, Spadella cephaloptera Busch 1851, were collected in the bay of La Ciotat near Marseilles (South of France) on the Posidonia oceanica bed, at a depth of 3 to 5 m. In the laboratory, samples were kept in large aquaria containing natural seawater and placed in a constant temperature at 21°C ± 1°C.
Identification of Chaetognaths as Protostomes Is Supported by the
academic.oup.com
Why are the s cephaloptera sequences more complex?
The analyses of the S. cephaloptera sequences are more complex for two reasons. First, Papillon et al. 3 use several methods to reconstruct their protein sequence tree. Second, they exploit additional sources of evidence from their mitochondrial genome.
Affinity for arrow worms | Nature
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BMC Ecology and Evolution
https://bmcecolevol.biomedcentral.com/articles/10.1186/1471-2148-7-146
Translational machinery of the chaetognath Spadella …
Spadella cephaloptera Database of Expressed Sequence Tags
Transcription Factor Binding Sites
SSU and LSU Ribosomal Proteins
Concatenation of Ribosomal Protein Sequences
Sequence Analysis
DNA Extraction and Amplification of Ribosomal Genes
Phylogenetic Analyses
Sequences of RPs from 6 metazoan species and/or taxa, as well as yeast RPs, were concatenated into 7 respective mega-sequences in the same relative order of proteins. From S. cephaloptera, R. norvegicus, echinoderms, molluscs, D. melanogaster, S. domuncula and S. cerevisiae, respectively, 1/the mega-sequences of RPs consisted of 5923, 7175, 6012, 5...
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Nature
https://www.nature.com/articles/431254b
Affinity for arrow worms | Nature
WEBSep 15, 2004 · The new data come from complete sequences of the mitochondrial genomes from two closely related species of arrow worm — Paraspadella gotoi and Spadella …
Wiley Online Library
https://onlinelibrary.wiley.com/doi/10.1111/j.1440-169X.2011.01283.x
Development of the nervous system in hatchlings of …
WEBJun 14, 2011 · This study sets out to provide new insights into neurogenesis of newly hatched Spadella cephaloptera and their development during the following days, with …
biologists.com
https://journals.biologists.com/jcs/article/s2-75/300/625/63256/Habits...
Habits, Structure, and Development of Spadella Cephaloptera
WEBSpadella cephaloptera is the smallest Chaetognath known, a fully grown adult measuring only about 4·25–5 mm. in length. The body is opaque and certain areas are coloured …
Oxford Academic
https://academic.oup.com/mbe/article/21/11/2122/1148179
Identification of Chaetognaths as Protostomes Is …
WEBAug 11, 2004 · Here we report the complete mitochondrial genome sequence of Spadella cephaloptera in which we identified three major striking and unique features: (1) the lack …
NBN Atlas
https://species.nbnatlas.org/species/NBNSYS0000187156
Spadella cephaloptera | NBN Atlas
WEBSpadella cephaloptera (Busch, 1851) species Accepted Name authority: UKSI Establishment means: Native
GBIF
https://www.gbif.org/species/2307111
Spadella cephaloptera (Busch, 1851) - GBIF
WEBGlobal Biodiversity Information Facility. Free and Open Access to Biodiversity Data.
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