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Drosophila
''Drosophila'' () is a genus of flies, belonging to the family Drosophilidae, whose members are often called "small fruit flies" or (less frequently) pomace flies, vinegar flies, or wine flies, a reference to the characteristic of many species to linger around overripe or rotting fruit. They should not be confused with the Tephritidae, a related family, which are also called fruit flies (sometimes referred to as "true fruit flies"); tephritids feed primarily on unripe or ripe fruit, with many species being regarded as destructive agricultural pests, especially the Mediterranean fruit fly. One species of ''Drosophila'' in particular, '' D. melanogaster'', has been heavily used in research in genetics and is a common model organism in developmental biology. The terms "fruit fly" and "''Drosophila''" are often used synonymously with ''D. melanogaster'' in modern biological literature. The entire genus, however, contains more than 1,500 species and is very diverse in appea ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Drosophila Melanogaster
''Drosophila melanogaster'' is a species of fly (the taxonomic order Diptera) in the family Drosophilidae. The species is often referred to as the fruit fly or lesser fruit fly, or less commonly the " vinegar fly" or " pomace fly". Starting with Charles W. Woodworth's 1901 proposal of the use of this species as a model organism, ''D. melanogaster'' continues to be widely used for biological research in genetics, physiology, microbial pathogenesis, and life history evolution. As of 2017, five Nobel Prizes have been awarded to drosophilists for their work using the insect. ''D. melanogaster'' is typically used in research owing to its rapid life cycle, relatively simple genetics with only four pairs of chromosomes, and large number of offspring per generation. It was originally an African species, with all non-African lineages having a common origin. Its geographic range includes all continents, including islands. ''D. melanogaster'' is a common pest in homes, restaurants, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Drosophila Pseudoobscura
''Drosophila'' () is a genus of flies, belonging to the family Drosophilidae, whose members are often called "small fruit flies" or (less frequently) pomace flies, vinegar flies, or wine flies, a reference to the characteristic of many species to linger around overripe or rotting fruit. They should not be confused with the Tephritidae, a related family, which are also called fruit flies (sometimes referred to as "true fruit flies"); tephritids feed primarily on unripe or ripe fruit, with many species being regarded as destructive agricultural pests, especially the Mediterranean fruit fly. One species of ''Drosophila'' in particular, '' D. melanogaster'', has been heavily used in research in genetics and is a common model organism in developmental biology. The terms "fruit fly" and "''Drosophila''" are often used synonymously with ''D. melanogaster'' in modern biological literature. The entire genus, however, contains more than 1,500 species and is very diverse in appearance, be ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Drosophila (subgenus)
''Drosophila'' is a paraphyletic subgenus of the genus ''Drosophila'', a classification of fruit flies. This subgenus was first described by Alfred Sturtevant in 1939.Sturtevant, A. H. (1939)On the subdivision of the genus ''Drosophila'' ''Proceedings of the National Academy of Sciences of the United States of America''. 25, 137–141. Members of the subgenus Drosophila can be distinguished from other Drosophilid species by breaks in the pigmentation along the dorsal section of their abdomen. Phylogeny Most species are within three major groups, the ''virilis-repleta'' radiation, the ''immigrans-tripunctata'' radiation and the Hawaiian Drosophila. Additionally, several smaller species groups are recognized consisting of smaller numbers of species, like the ''tumiditarsus'' species group and the ''polychaeta'' species group. Gallery File:Drosophila immigrans side on (14412343468).jpg, '' D. immigrans'' ( ''immigrans'' species group) File:Dinnubila4.tif, '' D. innubila'' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sophophora
The paraphyletic subgenus ''Sophophora'' of the genus ''Drosophila'' was first described by Alfred Sturtevant in 1939. It contains the best-known drosophilid species, ''Drosophila melanogaster''. ''Sophophora'' translates as carrier ('' phora'') of wisdom (''sophos''). The subgenus is paraphyletic because the genus '' Lordiphosa'' and the species ''Hirtodrosophila duncani'' are also placed within this subgenus. Phylogeny Currently, 10 species groups are recognized, in two main groups, the New World and the Old World Old World: * ''melanogaster'' species group (65 species, including '' D. melanogaster'' and ''D. simulans ''Drosophila simulans'' is a species of fly closely related to ''D. melanogaster'', belonging to the same ''melanogaster'' species subgroup. Its closest relatives are ''D. mauritiana'' and ''D. sechellia''. Taxonomy This species was discovere ...'') * ''montium'' species group (88) * ''ananassae'' species group (24) * ''obscura'' species group (44) * ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Drosophilidae
The Drosophilidae are a diverse, cosmopolitan family of flies, which includes species called fruit flies, although they are more accurately referred to as vinegar or pomace flies. Another distantly related family of flies, Tephritidae, are true fruit flies because they are frugivorous, and include apple maggot flies and many pests. The best known species of the Drosophilidae is ''Drosophila melanogaster'', within the genus ''Drosophila'', also called the "fruit fly." ''Drosophila melanogaster'' is used extensively for studies concerning genetics, development, physiology, ecology and behaviour. Many fundamental biological mechanisms were discovered first in ''D. melanogaster.'' The fruit fly is mostly composed of post-mitotic cells, has a very short lifespan, and shows gradual aging. As in other species, temperature influences the life history of the animal. Several genes have been identified that can be manipulated to extend the lifespan of these insects. Additionally, ''Drosoph ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dorsilopha
The subgenus ''Dorsilopha'' belongs to genus ''Drosophila'' and consists of four species. The phylogenetic position of this group has been unclear for a long time,van der Linde, K. & Houle, D. (2008). A supertree analysis and literature review of the genus Drosophila and closely related genera. Insect Systematics and Evolution 39, 241-267. but recent studies have shown that the subgenus is positioned ancestral to the subgenus ''Drosophila''. Species *''Drosophila busckii'' Coquillett, 1901 *''Drosophila confertidentata'' Zhang, Li and Feng, 2006 *''Drosophila linearidentata'' Toda, 1986 *''Drosophila neobusckii ''Drosophila'' () is a genus of flies, belonging to the family Drosophilidae, whose members are often called "small fruit flies" or (less frequently) pomace flies, vinegar flies, or wine flies, a reference to the characteristic of many species ...'' Toda, 1986 References D Insect subgenera {{Drosophilidae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Drosophila Funebris
''Drosophila funebris'' is a species of fruit fly. It was originally described by Johan Christian Fabricius in 1787, and placed in the genus ''Musca'' but is now the type species of the paraphyletic genus ''Drosophila''. ''Drosophila funebris'' is a member of the Immigrans-tripunctata radiation of the subgenus Drosophila ''Drosophila'' () is a genus of flies, belonging to the family Drosophilidae, whose members are often called "small fruit flies" or (less frequently) pomace flies, vinegar flies, or wine flies, a reference to the characteristic of many s .... Gallery File:Dfun-fem.tif, ''Drosophila funebris'' female File:Dfun-fem2.tif, ''Drosophila funebris'' female References f Insects described in 1787 {{Drosophilidae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dudaica
The subgenus ''Dudaica'' belongs to genus ''Drosophila'' and consists of two species, ''Drosophila malayana'' (Takada, 1976) and ''Drosophila senilis ''Drosophila senilis'' is a species of fly; it is the type species of the subgenus ''Dudaica''. References Drosophila, senilis {{Drosophilidae-stub ...'' Duda, 1926. References Dudaica Insect subgenera {{Drosophilidae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Phloridosa
''Phloridosa'' is a subgenus of the genus ''Drosophila ''Drosophila'' () is a genus of flies, belonging to the family Drosophilidae, whose members are often called "small fruit flies" or (less frequently) pomace flies, vinegar flies, or wine flies, a reference to the characteristic of many s ...''. References Phloridosa Insect subgenera {{Drosophilidae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Model Organism
A model organism (often shortened to model) is a non-human species that is extensively studied to understand particular biological phenomena, with the expectation that discoveries made in the model organism will provide insight into the workings of other organisms. Model organisms are widely used to research human disease when human experimentation would be unfeasible or unethical. This strategy is made possible by the common descent of all living organisms, and the conservation of metabolic and developmental pathways and genetic material over the course of evolution. Studying model organisms can be informative, but care must be taken when generalizing from one organism to another. In researching human disease, model organisms allow for better understanding the disease process without the added risk of harming an actual human. The species chosen will usually meet a determined taxonomic equivalency to humans, so as to react to disease or its treatment in a way that resembl ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Genetics
Genetics is the study of genes, genetic variation, and heredity in organisms.Hartl D, Jones E (2005) It is an important branch in biology because heredity is vital to organisms' evolution. Gregor Mendel, a Moravian Augustinian friar working in the 19th century in Brno, was the first to study genetics scientifically. Mendel studied "trait inheritance", patterns in the way traits are handed down from parents to offspring over time. He observed that organisms (pea plants) inherit traits by way of discrete "units of inheritance". This term, still used today, is a somewhat ambiguous definition of what is referred to as a gene. Trait inheritance and molecular inheritance mechanisms of genes are still primary principles of genetics in the 21st century, but modern genetics has expanded to study the function and behavior of genes. Gene structure and function, variation, and distribution are studied within the context of the cell, the organism (e.g. dominance), and within the con ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Psilodorha
''Psilodorha'' is a subgenus of the genus Drosophila ''Drosophila'' () is a genus of flies, belonging to the family Drosophilidae, whose members are often called "small fruit flies" or (less frequently) pomace flies, vinegar flies, or wine flies, a reference to the characteristic of many s .... References Psilodorha Insect subgenera {{Drosophilidae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
