BANK • PEŁNY PODGLĄD

ciało-człowieka: Nematode

Fakty • wikipedia-seeded

candidateneeds-reviewC 94%

Fakt używany przez pipeline

Although the highest estimates (up to 100 million species) have since been deprecated, estimates supported by rarefaction curves, together with the use of DNA barcoding and the increasing acknowledgment of widespread cryptic species among nematodes, have placed the figure closer to one million species.

Pełniejszy materiał źródłowy / excerpt

The nematodes ( NEM-ə-tohdz, NEE-mə-), roundworms or eelworms constitute the phylum Nematoda (Ancient Greek: Νηματώδη; Latin: Nematoda). Species in the phylum inhabit a broad range of environments. Most species are free-living, feeding on microorganisms, but many are parasitic. Parasitic worms (helminths) are the cause of soil-transmitted helminthiases. They are classified along with arthropods, tardigrades and other moulting animals in the clade Ecdysozoa. Unlike the flatworms, nematodes have a tubular digestive system, with openings at both ends. Like tardigrades, they have a reduced number of Hox genes, but their sister phylum Nematomorpha has kept the ancestral protostome Hox genotype, which shows that the reduction has occurred within the nematode phylum. Nematode species can be difficult to distinguish from one another. Consequently, estimates of the number of nematode species are uncertain. A 2013 survey of animal biodiversity suggested there are over 25,000. Estimates of the total number of extant species are subject to even greater variation. A widely referenced 1993 article estimated there might be over a million species of nematode. A subsequent publication challenged this claim, estimating the figure to be at least 40,000 species. Although the highest estimates (up to 100 million species) have since been deprecated, estimates supported by rarefaction curves, togeth…

Kategoria: ciało-człowieka

Rodzina: liczby

Jakość źródła: 65/100

Próby weryfikacji: 3

Notatka fact-checku: Fact-check 3.0-content-aware: no sufficient claim-bound corroboration after 3 healthy attempts. Scope=verify the factual claim. Required independent sources=2; stored evidence groups=1. Provider/API errors did not consume attempts. | Fact-check 4.3.2: research wznowiony bez zdejmowania HOLD. Poprzednia metoda: factcheck-300-content-aware. | Fact-check 4.3.2: research wznowiony bez zdejmowania HOLD. Poprzednia metoda: factcheck-weekly-research-432.

ŹRÓDŁA I DOWODY

5 zapisanych źródeł

Wikipedia ENPOTWIERDZAniezależne

Evidence: 100 • authority: 72

The nematodes ( NEM-ə-tohdz, NEE-mə-), roundworms or eelworms constitute the phylum Nematoda (Ancient Greek: Νηματώδη; Latin: Nematoda). Species in the phylum inhabit a broad range of environments. Most species are free-living, feeding on microorganisms, but many are parasitic. Parasitic worms (helminths) are the cause of soil-transmitted helminthiases. They are classified along with arthropods, tardigrades and other moulting animals in the clade Ecdysozoa. Unlike the flatworms, nematodes have a tubular digestive system, with openings at both ends. Like tardigrades, they have a reduced number of Hox genes, but their sister phylum Nematomorpha has kept the ancestral protostome Hox genotype,…

Otwórz źródło ↗

Europe PMC / PloS onepomocniczeniezależne

Evidence: 48 • authority: 92

Otwórz źródło ↗

Europe PMC / Geneticspomocniczeniezależne

Evidence: 20 • authority: 92

Calibrating and documenting host-switching and evolution of incompatibility loci for two closely related Wolbachia clades.. Maternally inherited Wolbachia alphaproteobacteria are the most common arthropod endosymbionts. Often, Wolbachia spread to high frequencies through cytoplasmic incompatibility, in which cif loci act through sperm to kill embryos lacking Wolbachia. Closely related Wolbachia with diverse cif loci often associate with anciently diverged hosts, but the timescale of associations remains uncertain. We produce new calibrations based on filarial nematodes with vertically inherited Wolbachia that codiverge with their hosts. Applying these calibrations to Wolbachia variants clos…

Otwórz źródło ↗

PeerJpomocniczeniezależne

Evidence: 20 • authority: 80

Otwórz źródło ↗

PeerJpomocniczeniezależne

Evidence: 20 • authority: 80

Otwórz źródło ↗