Heterodera Gotland
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''Heterodera'' is a genus 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 ...
s in the family
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 ...
. Members of the genus are obligate parasites and different species attack different crops, often causing great economic damage. The genus is unique among nematode genera because of the ability of the female to transform into a tough, brown, cyst which protects the eggs which have been formed within her body. The name heterodera "refers to the different 'skins' of female and cyst."Tylenchida: Parasites of Plants and Insects, 2nd ed., by Mohammad Rafiq Siddiqi


Diversity

The following is a list of taxa in the genus ''Heterodera'': * '' Heterodera amygdali'' * '' Heterodera arenaria'' * '' Heterodera aucklandica'' * '' Heterodera avenae'' * '' Heterodera bergeniae'' * '' Heterodera bifenestra'' * '' Heterodera cacti'' * '' Heterodera cajani'' * ''
Heterodera canadensis ''Heterodera canadensis''
at
Heterodera cardiolata'' * '' Heterodera carotae'' * ''
Heterodera ciceri ''Heterodera ciceri'' is a plant pathogenic nematode infecting lentils and chickpeas. See also * List of lentil diseases * List of chickpea diseases This is a list of diseases of chickpeas (''Cicer arietinum'') Nematodes, parasitic V ...
'' * '' Heterodera cruciferae'' * '' Heterodera delvii'' * '' Heterodera elachista'' * ''
Heterodera filipjevi ''Heterodera filipjevi'' is a plant pathogenic nematode affecting barley. See also * List of barley diseases This article is a list of diseases of barley (''Hordeum vulgare''). Bacterial and fungal diseases Nematodes, parasitic Virus, ...
'' * ''
Heterodera gambiensis ''Heterodera gambiensis'' is a plant pathogenic nematode affecting pearl millet. See also * List of pearl millet diseases This article is a list of diseases of pearl millet (''Pennisetum glaucum''). Bacterial diseases Fungal diseases ...
'' * '' Heterodera glycines'', soybean cyst nematode * '' Heterodera goettingiana'' * ''
Heterodera hordecalis ''Heterodera hordecalis'' is a plant pathogenic nematode affecting barley. See also * List of oat diseases This article is a list of diseases of the cultivated oat ''Avena sativa''. Bacterial diseases Fungal diseases Miscellaneous dis ...
'' * '' Heterodera humuli'' * ''
Heterodera latipons ''Heterodera latipons'', the Mediterranean cereal cyst nematode or wheat cyst nematode, is a plant pathogenic nematode. See also * List of barley diseases * List of oat diseases This article is a list of diseases of the cultivated oat ''Avena ...
'' * '' Heterodera longicaudata'' * '' Heterodera medicaginis'', alfalfa cyst nematode * ''
Heterodera oryzae ''Heterodera oryzae'', the rice cyst nematode, is a plant pathogenic nematode, which is cited as an invasive species An invasive species otherwise known as an alien is an introduced organism that becomes overpopulated and harms its new en ...
'' * ''
Heterodera oryzicola ''Heterodera oryzicola'', the rice cyst nematode, is a plant pathogenic nematode, which is cited as an invasive species An invasive species otherwise known as an alien is an introduced organism that becomes overpopulated and harms its new ...
'' * '' Heterodera rosii'' * ''
Heterodera sacchari ''Heterodera sacchari'', the sugarcane cyst nematode, mitotic parthenogenic sedentary endoparasitic nematode. This plant-parasitic nematode infects the roots of sugarcane, and the female nematode eventually becomes a thick-walled cyst filled wit ...
'' * ''
Heterodera schachtii ''Heterodera schachtii'', the beet cyst eelworm or sugarbeet nematode, is a plant pathogenic nematode. It infects more than 200 different plants including economically important crops such as sugar beets, cabbage, broccoli, and radish. ''H. sch ...
'' * ''
Heterodera tabacum ''Heterodera tabacum'' is (synonym of ''Globodera tabacum'') a plant pathogenic nematode affecting Jerusalem cherries (''Solanum pseudocapsicum''). See also * List of Jerusalem cherry diseases This article is a list of diseases of the Jer ...
'' * '' Heterodera trifolii'' * '' Heterodera ustinovi'' * '' Heterodera zeae'', corn cyst nematode


Genetics

GenBank contains
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 sequences for the family, much of which is for this genus. Most of that 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). Subbotin et al 2003 suggests further analysis of this data will yield a large number of new ''Heterodera'' species.


References


External links

{{Taxonbar, from=Q2711313 Tylenchida Plant pathogenic nematodes Secernentea genera