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Danaus (butterfly)
''Danaus'', commonly called tigers, milkweeds, monarchs, wanderers, and queens, is a genus of butterflies in the tiger butterfly tribe. They are found worldwide, including North America, South America, Africa, Asia, Indonesia and Australia. For other tigers see the genus, ''Parantica''. Taxonomy Following the review of Smith et al. (2005), 12 species are provisionally accepted based on morphological, mtDNA 12S rRNA and cytochrome ''c'' oxidase subunit I, and nuclear DNA 18S rRNA and EF1 subunit α sequence data: This genus was formerly split into the subgenera ''Danaus'', ''Salatura'', and ''Anosia'', but this arrangement has been abolished. While the first (the 2–3 monarch butterflies) and ''Salatura'' (species ''ismare, genutia, affinis'', and ''melanippus'') do indeed seem to be clades, the relationship of these to the other species, especially the puzzling ''D. dorippus'', is not clear. Hybridization producing fertile offspring is known to occur between some species, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Danaus Chrysippus
''Danaus chrysippus'', also known as the plain tiger, African queen, or African monarch, is a medium-sized butterfly widespread in Asia, Australia and Africa. It belongs to the Danainae subfamily of the brush-footed butterfly family Nymphalidae. Danainae primarily consume plants in the genus ''Asclepias'', more commonly called milkweed. Milkweed contains toxic compounds, cardenolides, which are often consumed and stored by many butterflies. Because of their emetic properties, the plain tiger is unpalatable to most predators. As a result, its coloration is widely mimicked by other species of butterflies. The plain tiger inhabits a wide variety of habitats, although it is less likely to thrive in jungle-like conditions and is most often found in drier, wide-open areas. ''D. chrysippus'' encompasses three main subspecies: ''D. c. alcippus, D. c. chrysippus,'' and ''D. c. orientis.'' These subspecies are found concentrated in specific regions within the larger range of the entire spe ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Parantica
''Parantica'', commonly called tigers, is an Old World genus of butterflies in subfamily Danainae of family Nymphalidae. They are found in southeastern Asia, Indonesia, Papua-New Guinea, and the Philippines. Many of these species are endemic to islands and considered endangered, vulnerable, or threatened according to the IUCN Red List. For other butterflies called tigers see the genus ''Danaus''. Species Species in alphabetical order: http://www.funet.fi/pub/sci/bio/life/insecta/lepidoptera/ditrysia/papilionoidea/nymphalidae/danainae/parantica/index.html Parantica *''Parantica aglea'' (Stoll, 1782) – glassy (blue) tiger *''Parantica agleoides'' (C. & R. Felder, 1860) – dark glassy tiger *''Parantica albata'' (Zinken, 1831) – Zinken's tiger *''Parantica aspasia'' (Fabricius, 1787) – yellow glassy tiger *'' Parantica cleona'' (Stoll, 1782) *''Parantica clinias'' (Grose-Smith, 1890) – New Ireland yellow tiger *'' Parantica crowleyi'' (Jenner Weir, 1894) – Crowley's tige ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Plain Tiger (Danaus Chrysippus Chrysippus) Male Underside
''Danaus chrysippus'', also known as the plain tiger, African queen, or African monarch, is a medium-sized butterfly widespread in Asia, Australia and Africa. It belongs to the Danainae subfamily of the brush-footed butterfly family Nymphalidae. Danainae primarily consume plants in the genus ''Asclepias'', more commonly called milkweed. Milkweed contains toxic compounds, cardenolides, which are often consumed and stored by many butterflies. Because of their emetic properties, the plain tiger is unpalatable to most predators. As a result, its coloration is widely mimicked by other species of butterflies. The plain tiger inhabits a wide variety of habitats, although it is less likely to thrive in jungle-like conditions and is most often found in drier, wide-open areas. ''D. chrysippus'' encompasses three main subspecies: ''D. c. alcippus, D. c. chrysippus,'' and ''D. c. orientis.'' These subspecies are found concentrated in specific regions within the larger range of the entire ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Danaus Chrysippus Female By Kadavoor
In Greek mythology, Danaus (, ; grc, Δαναός ''Danaós'') was the king of Libya. His myth is a foundation legend of Argos, one of the foremost Mycenaean cities of the Peloponnesus. In Homer's ''Iliad'', "Danaans" ("tribe of Danaus") and "Argives" commonly designate the Greek forces opposed to the Trojans. Family Parents and siblings Danaus, was the son of King Belus of Egypt and the naiad Achiroe, daughter of the river god Nilus, or of Sida, eponym of Sidon. He was the twin brother of Aegyptus, king of Egypt while Euripides adds two others, Cepheus, King of Ethiopia and Phineus, betrothed of Andromeda. Danaides Danaus had fifty daughters, the Danaides, twelve of whom were born to the naiad Polyxo; six to Pieria; two to Elephantis; four to Queen Europa; ten to the hamadryad nymphs Atlanteia and Phoebe; seven to an Ethiopian woman; three to Memphis; two to Herse and lastly four to Crino. According to Hippostratus, Danaus had all these progeny begotten by Europa, t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Johan Christian Fabricius
Johan Christian Fabricius (7 January 1745 – 3 March 1808) was a Danish zoologist, specialising in "Insecta", which at that time included all arthropods: insects, arachnids, crustaceans and others. He was a student of Carl Linnaeus, and is considered one of the most important entomologists of the 18th century, having named nearly 10,000 species of animals, and established the basis for the modern insect classification. Biography Johan Christian Fabricius was born on 7 January 1745 at Tønder in the Duchy of Schleswig, where his father was a doctor. He studied at the gymnasium at Altona and entered the University of Copenhagen in 1762. Later the same year he travelled together with his friend and relative Johan Zoëga to Uppsala, where he studied under Carl Linnaeus for two years. On his return, he started work on his , which was finally published in 1775. Throughout this time, he remained dependent on subsidies from his father, who worked as a consultant at Frederiks Hospita ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Danaus Affinis
''Danaus affinis'', the Malay tiger, mangrove tiger or swamp tiger, is a butterfly found in tropical Asia. It belongs to the "crows and tigers", the danaine group of the brush-footed butterflies family. This is a highly variable species. In its range, which stretches from Thailand to the Philippines and southwards through Indonesia to Melanesia and northeastern Australia, it has at least around 30, possibly many more subspecies.Smith, David A. S.; Lushai, Gugs & Allen, John A. (2005). A classification of ''Danaus'' butterflies (Lepidoptera: Nymphalidae) based upon data from morphology and DNA. '' Zool. J. Linn. Soc.'' 144(2):191–212. (HTML abstract) Its closest relative is the white tiger, ''Danaus melanippus''. See also *Danainae *Nymphalidae *List of butterflies of India *List of butterflies of India (Nymphalidae) This is a list of the butterflies of India belonging to the family Nymphalidae and an index to the species articles. This forms part of the full List of bu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mangrove Tiger (Danaus Affinis Fulgurata) I
''Danaus affinis'', the Malay tiger, mangrove tiger or swamp tiger, is a butterfly found in tropical Asia. It belongs to the "crows and tigers", the danaine group of the brush-footed butterflies family. This is a highly variable species. In its range, which stretches from Thailand to the Philippines and southwards through Indonesia to Melanesia and northeastern Australia, it has at least around 30, possibly many more subspecies.Smith, David A. S.; Lushai, Gugs & Allen, John A. (2005). A classification of ''Danaus'' butterflies (Lepidoptera: Nymphalidae) based upon data from morphology and DNA. '' Zool. J. Linn. Soc.'' 144(2):191–212. (HTML abstract) Its closest relative is the white tiger, ''Danaus melanippus''. See also *Danainae *Nymphalidae *List of butterflies of India *List of butterflies of India (Nymphalidae) This is a list of the butterflies of India belonging to the family Nymphalidae and an index to the species articles. This forms part of the full List of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
DNA Sequence
DNA sequencing is the process of determining the nucleic acid sequence – the order of nucleotides in DNA. It includes any method or technology that is used to determine the order of the four bases: adenine, guanine, cytosine, and thymine. The advent of rapid DNA sequencing methods has greatly accelerated biological and medical research and discovery. Knowledge of DNA sequences has become indispensable for basic biological research, DNA Genographic Projects and in numerous applied fields such as medical diagnosis, biotechnology, forensic biology, virology and biological systematics. Comparing healthy and mutated DNA sequences can diagnose different diseases including various cancers, characterize antibody repertoire, and can be used to guide patient treatment. Having a quick way to sequence DNA allows for faster and more individualized medical care to be administered, and for more organisms to be identified and cataloged. The rapid speed of sequencing attained with modern D ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Elongation Factor
Elongation factors are a set of proteins that function at the ribosome, during protein synthesis, to facilitate translational elongation from the formation of the first to the last peptide bond of a growing polypeptide. Most common elongation factors in prokaryotes are EF-Tu, EF-Ts, EF-G. Bacteria and eukaryotes use elongation factors that are largely homologous to each other, but with distinct structures and different research nomenclatures. Elongation is the most rapid step in translation. In bacteria, it proceeds at a rate of 15 to 20 amino acids added per second (about 45-60 nucleotides per second). In eukaryotes the rate is about two amino acids per second (about 6 nucleotides read per second). Elongation factors play a role in orchestrating the events of this process, and in ensuring the high accuracy translation at these speeds. Nomenclature of homologous EFs In addition to their cytoplasmic machinery, eukaryotic mitochondria and plastids have their own translation ma ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nuclear DNA
Nuclear DNA (nDNA), or nuclear deoxyribonucleic acid, is the DNA contained within each cell nucleus of a eukaryotic organism. It encodes for the majority of the genome in eukaryotes, with mitochondrial DNA and plastid DNA coding for the rest. It adheres to Mendelian inheritance, with information coming from two parents, one male and one female—rather than matrilineally (through the mother) as in mitochondrial DNA. Structure Nuclear DNA is a nucleic acid, a polymeric biomolecule or biopolymer, found in the nucleus of eukaryotic cells. Its structure is a double helix, with two strands wound around each other, a structure first described by Francis Crick and James D. Watson (1953) using data collected by Rosalind Franklin. Each strand is a long polymer chain of repeating nucleotides. Each nucleotide is composed of a five-carbon sugar, a phosphate group, and an organic base. Nucleotides are distinguished by their bases: purines, large bases that include adenine and guanine; and pyr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Protein Subunit
In structural biology, a protein subunit is a polypeptide chain or single protein molecule that assembles (or "''coassembles''") with others to form a protein complex. Large assemblies of proteins such as viruses often use a small number of types of protein subunits as building blocks. A subunit is often named with a Greek or Roman letter, and the numbers of this type of subunit in a protein is indicated by a subscript. For example, ATP synthase has a type of subunit called α. Three of these are present in the ATP synthase molecule, leading to the designation α3. Larger groups of subunits can also be specified, like α3β3-hexamer and c-ring. Naturally-occurring proteins that have a relatively small number of subunits are referred to as oligomeric.Quote: ''Oligomer molecule: A molecule of intermediate relative molecular mass, the structure of which essentially comprises a small plurality of units derived, actually or conceptually, from molecules of lower relative molecular ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cytochrome C Oxidase
The enzyme cytochrome c oxidase or Complex IV, (was , now reclassified as a translocasEC 7.1.1.9 is a large transmembrane protein complex found in bacteria, archaea, and mitochondria of eukaryotes. It is the last enzyme in the respiratory electron transport chain of cells located in the membrane. It receives an electron from each of four cytochrome c molecules and transfers them to one oxygen molecule and four protons, producing two molecules of water. In addition to binding the four protons from the inner aqueous phase, it transports another four protons across the membrane, increasing the transmembrane difference of proton electrochemical potential, which the ATP synthase then uses to synthesize ATP. Structure The complex The complex is a large integral membrane protein composed of several metal prosthetic sites and 14 protein subunits in mammals. In mammals, eleven subunits are nuclear in origin, and three are synthesized in the mitochondria. The complex contains two ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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