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The nematodes (/ ˈ n ɛ m ə t oʊ d z / NEM-ə-tohdz or NEEM-; Ancient Greek: Νηματώδη; Latin: Nematoda), roundworms or eelworms constitute the phylum Nematoda. Species in the phylum inhabit a broad range of environments. Most species are free-living, feeding on microorganisms, but many are parasitic.
Thripinema fuscum is a Allantonematidae nematode that, can naturally decrease the population of Frankliniella fusca, Tobacco thrips. [5] Commonly found in Florida, T. fuscum that infect tobacco thrips have been shown to only affect the reproduction system of the thrips, causing a decrease in thrips over time. [5]
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 ...
Mesorhabditis belari is a species of nematode in the family Rhabditidae. [2] A non‑parasitic species, it produces a small number of males which are required for reproduction but do not contribute their DNA to the next generation (called pseudogamy or gynogenesis).
List of Nematoda has 25,000 recorded species from the Nematode phylum. There are estimated to be a million. [1]
Nematoida is a clade of pseudocoelomate free living or parasitic animals.It consists of phyla Nematoda and Nematomorpha. [3] [4] The two groups share a number of features in common; the presence of a cloaca in both sexes, aflagellate sperm, and a cuticle made of collagen.
Looking at the nematode as a whole, the male and hermaphrodite sex likely evolved from parallel evolution. [30] Parallel evolution is defined as similar traits evolving from an ancestor in similar conditions; simply put, the two species evolve in similar ways over time. An example of this would be marsupial and placental mammals.
Reproduction is amphimictic and females can lay up to 1000 eggs. The first molt occurs in the egg and the nematode hatches as a J2. The first molt occurs in the egg and the nematode hatches as a J2. These juveniles undergo anhydrobiosis and become the dormant dauer larvae to withstand the hot summer heat of Australia.