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Caenorhabditis Sp
''Caenorhabditis'' is a genus of nematodes which live in bacteria-rich environments like compost piles, decaying dead animals and rotting fruit. The name comes from Greek: caeno- (καινός (caenos) = new, recent); rhabditis = rod-like (ῥάβδος (rhabdos) = rod, wand). In 1900, Maupas initially named the species ''Rhabditis elegans'', Osche placed it in the subgenus ''Caenorhabditis'' in 1952, and in 1955, Dougherty raised ''Caenorhabditis'' to the status of genus. The genus ''Caenorhabditis'' contains the noted model organism '' Caenorhabditis elegans'' and several other species for which a genome sequence is either available or currently being determined. The two most-studied species in this genus (''C. elegans'' and ''C. briggsae'') are both androdioecious (they have male and hermaphrodite sexes) whereas most other species are gonochoristic (they have male and female sexes). ''C. elegans'' is the type species of the genus. Ecology ''Caenorhabditis'' occupy var ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Caenorhabditis Elegans
''Caenorhabditis elegans'' () is a free-living transparent nematode about 1 mm in length that lives in temperate soil environments. It is the type species of its genus. The name is a blend of the Greek ''caeno-'' (recent), ''rhabditis'' (rod-like) and Latin ''elegans'' (elegant). In 1900, Maupas initially named it '' Rhabditides elegans.'' Osche placed it in the subgenus ''Caenorhabditis'' in 1952, and in 1955, Dougherty raised ''Caenorhabditis'' to the status of genus. ''C. elegans'' is an unsegmented pseudocoelomate and lacks respiratory or circulatory systems. Most of these nematodes are hermaphrodites and a few are males. Males have specialised tails for mating that include spicules. In 1963, Sydney Brenner proposed research into ''C. elegans,'' primarily in the area of neuronal development. In 1974, he began research into the molecular and developmental biology of ''C. elegans'', which has since been extensively used as a model organism. It was the first multicellu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Millipede
Millipedes are a group of arthropods that are characterised by having two pairs of jointed legs on most body segments; they are known scientifically as the class Diplopoda, the name derived from this feature. Each double-legged segment is a result of two single segments fused together. Most millipedes have very elongated cylindrical or flattened bodies with more than 20 segments, while pill millipedes are shorter and can roll into a tight ball. Although the name "millipede" derives from the Latin for "thousand feet", no species was known to have 1,000 or more until the discovery of ''Eumillipes persephone'', which can have over 1,300 legs. There are approximately 12,000 named species classified into 16 orders and around 140 families, making Diplopoda the largest class of myriapods, an arthropod group which also includes centipedes and other multi-legged creatures. Most millipedes are slow-moving detritivores, eating decaying leaves and other dead plant matter. Some eat fungi or ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Caenorhabditis Remanei
''Caenorhabditis remanei'' is a species of nematode found in North America and Europe, and likely lives throughout the temperate world. Several strains have been developed in the laboratory.''C. remanei''. The Genome Center at Washington University. Habitat This 1-mm nematode lives in , , and similar materials, where it consumes . It may be found in association with soil-living invertebrates such as |
Caenorhabditis Latens
''Caenorhabditis latens'' is a species of nematodes. Prior to 2014, it was referred to as ''Caenorhabditis sp. 23''. The reference strain VX88 was isolated from soil near a lotus pond and strain VX85 was isolated from soil under rotten grass in Juifeng Village, Wuhan City, Hubei Province, China. This species groups with '' C. remanei'' in the 'Elegans' supergroup in phylogenetic studies Kiontke, Karin; Félix, Marie-Anne, Ailion, Michael; Rockman, Matthew V.; Braendle, Christian; Pénigault, Jean-Baptiste; Fitch, David H. A. (21 November 2011). "A phylogeny and molecular barcodes for ''Caenorhabditis'', with numerous new species from rotting fruits". BMC Evolutionary Biology. 11:339, References External links Strain VX85at Caenorhabditis Genetics Center, University of Minnesota Strain VX88at Caenorhabditis Genetics Center, University of Minnesota RhabditinaDBat Department of Biology, New York University latens ''Caenorhabditis latens'' is a species of nematodes. Prior ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Caenorhabditis Sinica
''Caenorhabditis sinica'', is a species of ''Caenorhabditis'' nematodes, belonging to the ''Elegans'' super-group and ''Elegans'' group within the genus. It is closely related to several species isolated from the lands adjacent to the Indian and Pacific Oceans, as well as to ''C. briggsae'' and ''C. nigoni.'' The species was known as “''C. sp. 5''” prior to 2014. ''C. sinica'' is known for having very high genetic diversity in its genome. Like other ''Caenorhabditis'' species, ''C. sinica'' is a ~1mm long roundworm with a transparent cuticle and that eats bacteria. Wild isolate strains of ''C. sinica'' have been collected from various rotting plant tissue substrates in temperate and tropical regions throughout China since its initial isolation in 2005. Anatomy Measurements of adult ''C. sinica'' returned a mean body length of 1531.9μm for females and 959.81μm for males. The average male size of ''C. sinica'' is comparatively larger than males from the model system ''C. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Caenorhabditis Sp
''Caenorhabditis'' is a genus of nematodes which live in bacteria-rich environments like compost piles, decaying dead animals and rotting fruit. The name comes from Greek: caeno- (καινός (caenos) = new, recent); rhabditis = rod-like (ῥάβδος (rhabdos) = rod, wand). In 1900, Maupas initially named the species ''Rhabditis elegans'', Osche placed it in the subgenus ''Caenorhabditis'' in 1952, and in 1955, Dougherty raised ''Caenorhabditis'' to the status of genus. The genus ''Caenorhabditis'' contains the noted model organism '' Caenorhabditis elegans'' and several other species for which a genome sequence is either available or currently being determined. The two most-studied species in this genus (''C. elegans'' and ''C. briggsae'') are both androdioecious (they have male and hermaphrodite sexes) whereas most other species are gonochoristic (they have male and female sexes). ''C. elegans'' is the type species of the genus. Ecology ''Caenorhabditis'' occupy var ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Caenorhabditis Inopinata
''Caenorhabditis inopinata'' - prior to 2017 referred to as ''C. sp. 34.'' - is a sister species to ''C. elegans'' (it is classified in the 'Elegans' supergroup). The specific epithet comes from the Latin inopinus (“unexpected”). This gonochoristic (male-female) species was isolated from figs (''Ficus septica'') and fig wasps in Ishigaki Island, in Japan. It was recovered by N. Kanzaki in 2013. It is a larger species than ''C. elegans''. Its genome is being sequenced at the University of Miyazaki is a national university primarily in the Kibana neighborhood of southern Miyazaki city, Miyazaki Prefecture, Japan. The name is sometimes shortened to the abbreviation "UoM" or the portmanteau "Miyadai." The predecessor of the school was founded ....Kikuchi T., Tsai I., Berriman M., Sugimoto A. and Kanzaki N. Evolutionary insights from the genome, morphology and natural history of Caenorhabditis inopinata, the sister species of C. elegans References External links ''Caeno ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Caenorhabditis Briggsae
''Caenorhabditis briggsae'' is a small nematode, closely related to ''Caenorhabditis elegans''. The differences between the two species are subtle. The male tail in ''C. briggsae'' has a slightly different morphology from ''C. elegans''. Other differences include changes in vulval precursor competence and the placement of the excretory duct opening. ''C. briggsae'' is frequently used to study the differences between it and the more intimately understood ''C. elegans'', especially at the DNA and protein sequence level. Several mutant strains of ''C. briggsae'' have also been isolated that facilitate genetic analysis of this organism. ''C. briggsae'', like ''C. elegans'', is a hermaphrodite. The genome sequence for ''C. briggsae'' was determined in 2003. History ''C. briggsae'' was initially discovered by Margaret Briggs in 1944. The first individuals were isolated from a pile of leaves found on the Palo Alto campus of Stanford University. Briggs, who was studying for her MS, ide ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sister Species
In phylogenetics, a sister group or sister taxon, also called an adelphotaxon, comprises the closest relative(s) of another given unit in an evolutionary tree. Definition The expression is most easily illustrated by a cladogram: Taxon A and taxon B are sister groups to each other. Taxa A and B, together with any other extant or extinct descendants of their most recent common ancestor (MRCA), form a monophyletic group, the clade AB. Clade AB and taxon C are also sister groups. Taxa A, B, and C, together with all other descendants of their MRCA form the clade ABC. The whole clade ABC is itself a subtree of a larger tree which offers yet more sister group relationships, both among the leaves and among larger, more deeply rooted clades. The tree structure shown connects through its root to the rest of the universal tree of life. In cladistic standards, taxa A, B, and C may represent specimens, species, genera, or any other taxonomic units. If A and B are at the same taxonomic ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Caenorhabditis Nigoni
''Caenorhabditis nigoni'' is a male-female species in the Elegans group of the genus ''Caenorhabditis'', first identified and described as "''Caenorhabditis'' species 9" or "''C''. sp. 9" before being renamed as "''C. nigoni''". The specific epithet is a tribute to Victor Nigon who first studied ''Caenorhabditis elegans'' in the laboratory with Ellsworth Dougherty in the 1940s (Nigon, 1949). Isolates come from the Democratic Republic of the Congo and Kerala Kerala ( ; ) is a state on the Malabar Coast of India. It was formed on 1 November 1956, following the passage of the States Reorganisation Act, by combining Malayalam-speaking regions of the erstwhile regions of Cochin, Malabar, South ..., India. ''C. briggsae'' hybrids research ''C. nigoni'' is noteworthy because it is very closely related to the hermaphroditic species, '' C. briggsae''. Despite substantial differences between ''C. nigoni'' and ''C. briggsae'' in their modes of sexual reproduction (50:50% femal ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Phoresis (biology)
Phoresis or phoresy is a non-permanent, commensalistic interaction in which one organism (a phoront or phoretic) attaches itself to another (the host) solely for the purpose of travel. Phoresis has been observed directly in ticks and mites since the 18th century, and indirectly in fossils 320 million years old. It is not restricted to arthropods or animals; plants with seeds that disperse by attaching themselves to animals are also considered to be phoretic. ''Phoresis'' is rooted in the Greek words ''phoras'' (bearing) and ''phor'' (thief). The term, originally defined in 1896 as a relationship in which the host acts as a vehicle for its passenger, clashed with other terminology being developed at the time, so constraints on the length of time, feeding and ontogeny are now considered. Phoresis is used as a strategy for dispersal, seasonal migration, transport to new host/habitat escaping ephemeral habitats, and reducing inbreeding depression. In addition to the bene ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Zebu Cattle
The zebu (; ''Bos indicus'' or ''Bos taurus indicus''), sometimes known in the plural as indicine cattle or humped cattle, is a species or subspecies of domestic cattle originating in the Indian sub-continent. Zebu are characterised by a fatty hump on their shoulders, a large dewlap, and sometimes drooping ears. They are well adapted to withstanding high temperatures, and are farmed throughout the tropical countries, both as pure zebu and as hybrids with taurine cattle, the other main type of domestic cattle. Zebu are used as draught and riding animals, dairy cattle, and beef cattle, as well as for byproducts such as hides and dung for fuel and manure. Some small breeds such as the miniature zebu are also kept as pets. In 1999, researchers at Texas A&M University successfully cloned a zebu. In some regions, such as parts of India, cattle, especially zebu, have significant religious meaning. Taxonomy and name The scientific name ''Bos indicus'' was introduced by Carl Linnaeus ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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