Trichodoridae (stubby-root nematodes, trichodorids) is a
family
Family (from la, familia) is a Social group, group of people related either by consanguinity (by recognized birth) or Affinity (law), affinity (by marriage or other relationship). The purpose of the family is to maintain the well-being of its ...
of terrestrial root feeding
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, being one of two that constitute
suborder
Order ( la, ordo) is one of the eight major hierarchical taxonomic ranks in Linnaean taxonomy. It is classified between family and class. In biological classification, the order is a taxonomic rank used in the classification of organisms and ...
Triplonchida
Triplonchida is an order of terrestrial nematodes, and is one of two orders making up the subclass Enoplia
The Enoplia are a subclass of nematodes in the class Enoplea.
Description
Enoplians are characterized by amphids shaped like oval ...
.Phylum Nematoda: Triplochida Nematode Classification. Department of Nematology. University of California, Riverside. Nemaplex: Nematode-Plant Expert Information System. University of California, Davis. Version October 9, 2012. They are economically important plant parasites and virus vectors.
Taxonomy
The first trichodorid was described in 1880 (De Man) as ''Dorylaimus primitivus'', and the type genus, ''Trichodorus'' described in 1913 by Cobb, based on '' Trichodorus obtusus''.
Subdivision
Historically, up to 1973, ''
Trichodorus
''Trichodorus'' is a genus of terrestrial root feeding (stubby-root) nematodes in the Trichodoridae family (trichorids), being one of five genera.Paratrichodorus''. This was based on the position of the gland nuclei and the type of pharyngo-intestinal junction. Siddiqi also used these criteria to divide ''Paratrichodirus'' into three subgenera, ''Paratrichodorus'', ''Atlantadorus'' and ''Nanidorus''. Rodriguez-Montessorosoon proposed further separating these genera into two subfamilies, resurrecting the name Trichodorinae. With Siddiqi's subgenera not accepted by all authorities, his elevation of these subgenera to genus level in 1980 was followed by even fewer, but now is finding supports in molecular systematics.
Phylogenetics
In the case of ''Nanidorus'', phylogenetic analysis has supported its recognition as a separate genus, although clustering with ''Trichodorus'' rather than its parent ''Paratrichodorus''.
Genera
There were few species recognised before the economic importance of the family was recognised, and in 1957 there were only 12, but this increased rapidly. In addition further genera than the original ''Trichodorus'' (1913) and ''Paratrichodorus'' (1974) were created in the 1970s, and another genus in 2002.
There are now about 100 species divided into five to six genera. Duarte et al. (2010) list 102 species.
*'' Allotrichodorus'' Rodriguez-M, Sher and Siddiqi, 1978 (6 species)
*'' Ecuadorus'' Siddiqi, 2002 (2 species)
*'' Monotrichodorus'' Andrassy, 1976 (4 species)
*'' Nanidorus'' Siddiqi, 1974
*'' Paratrichodorus'' Siddiqi, 1974 (34 species)
*''
Trichodorus
''Trichodorus'' is a genus of terrestrial root feeding (stubby-root) nematodes in the Trichodoridae family (trichorids), being one of five genera.
*
*De Ley, P & Blaxter, M 2004, 'A new system for Nematoda: combining morphological characters with molecular trees, and translating clades into ranks and taxa'. in R Cook & DJ Hunt (eds), Nematology Monographs and Perspectives. vol. 2, E.J. Brill, Leiden, pp. 633–653.
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{{Taxonbar, from=Q5270505
Enoplia