Tylenchoidea
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Tylenchoidea
Tylenchoidea is a superfamily of roundworms. Its members are either plant parasites Parasitism is a close relationship between species, where one organism, the parasite, lives on or inside another organism, the host, causing it some harm, and is adapted structurally to this way of life. The entomologist E. O. Wilson ha ... or detritivores. References Tylenchida Animal superfamilies {{Secernentea-stub ...
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Hoplolaimidae
Hoplolaimidae is a family of plant pathogenic nematodes. It has two subfamilies, Hoplolaiminae and Rotylenchulinae. Typically hoplolaimids are ectoparasite, ecto- or semi endoparasites of higher plants. Subfamilies and genera in Hoplolaimidae Type subfamily Hoplolaiminae Filip'ev, 1934. * Nemonchinae Skarbilovich, 1959 * Rotylenchoidinae Whitehead, 1958 * Aphasmatylenchinae Sher, 1965 (n. syn.) * Rotylenchinae Golden, 1971 (n. syn.) * Pararotylenchinae Baldwin & Bell, 1981 (n. syn.) Genera * ''Hoplolaimus'' von Daday, 1905 * ''Rotylenchus'' Filip'ev, 1936 * ''Helicotylenchus'' Steiner, 1945 * ''Scutellonema'' Andrâssy, 1958 * ''Aorolaimus'' Sher, 1963 * ''Aphasmatylenchus'' Sher, 1965 * ''Antarctylus'' Sher, 1973 * ''Pararotylenchus'' Baldwin & Bell, 1981 Other subfamily Rotylenchulinae Husain & Khan, 1967 * Acontylinae Fotedar & Handoo, 1978 Genera * ''Rotylenchulus'' Lindford & Oliveira, 1940 * ''Acontylus'' Meagher, 1968 * ''Senegalonema'' Germani, Luc & Baldwin, 1983 ...
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Anguinidae
Anguinidae is a family of nematode The nematodes ( or grc-gre, Νηματώδη; la, Nematoda) or roundworms constitute the phylum Nematoda (also called Nemathelminthes), with plant-Parasitism, parasitic nematodes also known as eelworms. They are a diverse animal phylum inhab .... References Tylenchida Plant pathogenic nematodes Nematode families {{Nematode-stub ...
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Tylenchidae
Tylenchidae is a family of nematodes. They are an important group of soil dwelling species that frequently contributes as much as 30% to the nematode species richness of soil samples. They diverged relatively early on and many species pose little risk to economically important plant species. Due to their early divergence, species tend to have relatively basal characteristics. They tend to be small nd slender with small and delicate piercing mouthparts. It contains the following subfamilies and genera: ;Atylenchinae *'' Aglenchus'' *'' Antarctenchus'' *'' Atylenchus'' *'' Caslenchus'' *'' Pleurotylenchus'' ;Boleodorinae *'' Atetylenchus'' *'' Basiria'' *''Boleodorus'' *'' Neopsilenchus'' *'' Neothada'' *'' Psilenchus'' *'' Ridgellus'' *'' Thada'' ;Ecphyadophorinae *''Chilenchus'' *'' Ecphyadophora'' *'' Ecphyadophoroides'' *'' Epicharinema'' *'' Lelenchus'' *'' Mitranema'' *'' Tenunemellus'' *'' Tremonema'' *'' Ultratenella'' ;Tylenchinae *'' Allotylenchus'' *'' Cervoannulatus' ...
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Tylenchida
Tylenchida is an order of nematodes. List of families * Superfamily Criconematoidea ** Family Criconematidae ** Family Tylenchulidae * Superfamily Tylenchoidea ** Family Anguinidae ** Family Belonolaimidae ** Family Dolichodoridae ** Family Ecphyadophoridae ** Family Hoplolaimidae ** Family Heteroderidae ** Family Pratylenchidae ** Family Tylenchidae Tylenchidae is a family of nematode The nematodes ( or grc-gre, Νηματώδη; la, Nematoda) or roundworms constitute the phylum Nematoda (also called Nemathelminthes), with plant- parasitic nematodes also known as eelworms. They are a ... * Superfamily Sphaerularina ** Family Allantonematidae ** Family Fergusobiidae ** Family Iotonchiidae ** Family Parasitylenchidae ** Family Sphaerulariidae References Further reading * Mohammad Rafiq Siddiqui. ''Tylenchida: Parasites of Plants and Insects''. 2nd ed. Wallingford: CABI Publishing, 2000. Ex ...
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Heterodera Glycines
The soybean cyst nematode (SCN), ''Heterodera glycines'', is the most devastating pest to soybean crop yields in the U.S., targeting the roots of soybean and other legume plants. When infection is severe SCNs cause stunting, yellowing, impaired canopy development, and yield loss. The symptoms caused by SCNs can go easily unrecognized by farmers—in some cases there are no warning symptoms before a loss of 30% of the yield.“You can literally have 40% yield loss with no symptoms,” says Greg Tylka, Iowa State University (ISU) Extension nematologist. Due to the slight stunting and yellowing, many farmers may mistake these symptoms as environmental problems when in fact they are SCNs. Another symptom of SCNs that may affect farmers' yields is stunted roots with fewer nitrogen-fixing nodules. Due to the fact that soybean cyst nematodes can only move a few centimeters in the soil by themselves, they mostly are spread via tillage or plant transplants. This area of infection will look ...
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Belonolaimidae
Belonolaimidae is a family of nematodes belonging to the order Tylenchida Tylenchida is an order of nematodes. List of families * Superfamily Criconematoidea ** Family Criconematidae ** Family Tylenchulidae * Superfamily Tylenchoidea ** Family Anguinidae ** Family Belonolaimidae ** Family Dolicho .... Genera: * '' Geocenamus'' Thorne & Malek, 1968 * '' Morulaimus'' Sauer, 1966 * '' Quinisulcius'' * '' Tylenchorhynchus'' Cobb, 1913 References {{Taxonbar, from=Q5264672 Nematodes ...
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Dolichodoridae
Dolichodoridae is a family of nematodes belonging to the order Tylenchida Tylenchida is an order of nematodes. List of families * Superfamily Criconematoidea ** Family Criconematidae ** Family Tylenchulidae * Superfamily Tylenchoidea ** Family Anguinidae ** Family Belonolaimidae ** Family Dolicho .... Genera Genera: * '' Amplimerlinius'' Siddiqi, 1976 * '' Brachydorus'' de Guiran & Germani, 1968 * '' Carphodorus'' Colbran, 1965 References {{Taxonbar, from=Q18536889 Nematodes ...
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Ecphyadophoridae
Ecphyadophoridae is a family of nematodes belonging to the order Rhabditida Rhabditida is an order of free-living, zooparasitic, and phytoparasitic microbivorous nematodes living in soil. The Cephalobidae, Panagrolaimidae, Steinernematidae, and Strongyloididae seem to be closer to the Tylenchia, regardless of whet .... Genera: * '' Ecphyadophora'' * '' Lelenchus '' References Nematodes {{chromadorea-stub ...
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Heteroderidae
''Heteroderidae'' is a family of nematodes. The name comes from the Greek heteros = other and deras = skin (derm). This "refers to the different 'skins' of female and cyst."Tylenchida: Parasites of Plants and Insects, 2nd ed., by Mohammad Rafiq Siddiqi Genetics GenBank has unusually extensive coverage of Heteroderidae internal transcribed spacer Internal transcribed spacer (ITS) is the spacer DNA situated between the small-subunit ribosomal RNA (rRNA) and large-subunit rRNA genes in the chromosome or the corresponding transcribed region in the polycistronic rRNA precursor transcript. I ...s, most of which has been generated by Sergei Subbotin and collaborators (Subbotin et al. 1999, Clapp et al. 2000, Subbotin et al. 2000, Zeng et al. 2000, Subbotin et al. 2001, Amiri & Subbotin 2002, Subbotin et al. 2003). In total over of described Heteroderidae have some ITS data in GenBank. Overall Subbotin et al. find the preexisting taxonomy to fit very well with these sequences, w ...
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Pratylenchidae
Pratylenchidae is a family Family (from la, familia) is a group of people related either by consanguinity (by recognized birth) or affinity (by marriage or other relationship). The purpose of the family is to maintain the well-being of its members and of society. Idea ... of plant pathogenic nematodes. Members include Achlysiella williamsi. References Tylenchida Nematode families Taxa described in 1949 {{plant-disease-stub ...
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Taxonomic Rank
In biological classification, taxonomic rank is the relative level of a group of organisms (a taxon) in an ancestral or hereditary hierarchy. A common system consists of species, genus, family (biology), family, order (biology), order, class (biology), class, phylum (biology), phylum, kingdom (biology), kingdom, domain (biology), domain. While older approaches to taxonomic classification were phenomenological, forming groups on the basis of similarities in appearance, organic structure and behaviour, methods based on genetic analysis have opened the road to cladistics. A given rank subsumes under it less general categories, that is, more specific descriptions of life forms. Above it, each rank is classified within more general categories of organisms and groups of organisms related to each other through inheritance of phenotypic trait, traits or features from common ancestors. The rank of any ''species'' and the description of its ''genus'' is ''basic''; which means that to iden ...
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Nematode
The nematodes ( or grc-gre, Νηματώδη; la, Nematoda) or roundworms constitute the phylum Nematoda (also called Nemathelminthes), with plant-Parasitism, parasitic nematodes also known as eelworms. They are a diverse animal phylum inhabiting a broad range of environments. Less formally, they are categorized as Helminths, but are taxonomically classified along with Arthropod, arthropods, Tardigrade, tardigrades and other moulting animalia, animals in the clade Ecdysozoa, and unlike platyhelminthe, flatworms, have tubular digestion, digestive systems 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 described to date vary by author and may change rapidly over ...
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