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In 2019, a study identified one conserved signature indel (CSI) found exclusively in members of the phylum Nematoda through comparative genetic analyses. [38] The CSI consists of a single amino acid insertion within a conserved region of a Na(+)/H(+) exchange regulatory factor protein NRFL-1 and is a molecular marker that distinguishes the ...
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Caenorhabditis elegans - genome sequenced in 1998 by Washington University in St. Louis and the Wellcome Trust Sanger Institute to 6x coverage [9] This is currently the most studied species in the genus, and likely in the phylum. C. elegans are mostly XX protandrous hermaphrodites that fertilize using their own sperm or the sperm of occasional ...
List of Nematoda has 25,000 recorded species from the Nematode phylum. There are estimated to be a million. [1]
Anatomical diagram of a male C. elegans Video of C. elegans with pencil for scale There are 302 neurons in C. elegans, approximately one-third of all the somatic cells in the whole body. [ 22 ] Many neurons contain dendrites which extend from the cell to receive neurotransmitters or other signals, and a process that extends to the nerve ring ...
Dracunculus medinensis (Guinea worm, dragon worm, fiery serpent [1]) is a nematode that causes dracunculiasis, also known as guinea worm disease. [2] The disease is caused by the female [3] which, at around 80 centimetres (31 inches) in length, [4] is among the longest nematodes infecting humans. [5]
Ascaris is a nematode genus of parasitic worms known as the "small intestinal roundworms". [1] One species, Ascaris lumbricoides, affects humans and causes the disease ascariasis.
Enoplea (enopleans) is a class, which with the classes Secernentea [1] and Chromadorea make up the phylum Nematoda in current taxonomy. [2] [3] [4] The Enoplea are considered to be a more ancestral group than the Chromadorea, and researchers have referred to its members as the "ancestrally diverged nematodes", compared to the "more recently diverged nematodes" of Chromadorea.