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Phylogenetic
Pertaining to the evolutionary history of a particular group of organisms. (source: WCMC) Background from Wikipedia In biology, phylogenetics (Greek: phylon = tribe, race and genetikos = relative to birth, from genesis = birth) is the study of evolutionary relatedness among various groups of organisms (e.g., species, populations). Also known as phylogenetic systematics, phylogenetics treats a species as a group of lineage-connected individuals over time. Phylogenetic taxonomy, which is an offshoot of, but not a logical consequence of, phylogenetic systematics, constitutes a means of classifying groups of organisms according to degree of evolutionary relatedness. Phylogeny (or phylogenesis) is the origin and evolution of a set of organisms, usually a set of species. A major task of systematics is to determine the ancestral relationships among known species (both living and extinct). The most commonly used methods to infer phylogenies include parsimony, maximum likelihood, and MCMC-based Bayesian inference. Distance-based methods construct trees based on overall similarity which is often assumed to approximate phylogenetic relationships. All methods depend upon an implicit or explicit mathematical model describing the evolution of characters observed in the species included, and are usually used for molecular phylogeny where the characters are aligned nucleotide or amino acid sequences. Aidsmap,Phylogenetic analysis was also performed to confirm any cases of suspected superinfection. None of the patients experiencing sudden increases in viral load Supervisory Research Geneticist/Molecular Biologist/Plant Pathologist - Oct 17, 2007 Nature.com (subscription),Objectives of personal research are to: develop and apply new genetic markers for phylogenetic and genetic diversity analyses of priority crops, Nigeria: Group Seeks Greater Focus On Environment - Oct 17, 2007 AllAfrica.com,...microbial ecology aims to characterise microbial communities in terms of what types of microorganisms are present (its phylogenetic structure); Thirtieth Anniversary Of Discovery Of Third Domain Of Life - Oct 16, 2007 Science Daily (press release)The paper’s three-sentence abstract stated simply that “the methanogens constitute a distinct phylogenetic group… only distantly related to bacteria. Full Text - Sep 27, 2007 Science Magazine (subscription)The "deep" position of some Archezoa has been convincingly undermined by showing that they belong elsewhere in the phylogenetic tree, the clearest case Full Text - Oct 11, 2007 Science Magazine (subscription)Also, for many bird species, an enormous quantity of information now exists about their behaviors, phylogeography, phylogenetic relationships, age, Full Text - Oct 18, 2007 Science Magazine (subscription)Phylogenetic analyses (Fig. 1) emphasize the similarity of coral CRYs and their vertebrate counterparts. Coral CRY1 belongs to the mammalian-type (m-type) Full Text - Oct 18, 2007 Science Magazine (subscription)Genome-wide analyses (1, 2) and a molecular phylogenetic analysis (3) have demonstrated that this organism is likely to represent one of the most ancestral Full Text - Sep 27, 2007 Science Magazine (subscription)Although aDNA has been applied to phylogenetic questions for more than 20 years (4), only six complete mitochondrial genomes from ancient samples have been Neolamprologus brichardi and pulcher are same species - Oct 16, 2007 Practical Fishkeeping,The authors found that the phylogenetic reconstructions never reflected the current taxonomic separation of N. brichardi and N. pulcher, nor was there a Taxonomic recommendations for British birds: Fourth report - Oct 13, 2007 Surfbirds News..."Phylogenetic evidence based on analysis of mitochondrial DNA (mtDNA) sequences indicates that the large white-headed gull complex consists of two main Are Australia's Aborigiones Less Evolved? - Oct 11, 2007 Xenox News (satire),Their analysis showed that DNA from people in New Guinea and aboriginal Australians could be traced back to early branches of the human phylogenetic tree, Reproductive structures of Rhamnaceae from the Cerro del Pueblo ... - Oct 10, 2007 Am J Botany (subscription)A detailed phylogenetic revision of the group that uses morphological characters from both extant and fossil plants is needed to better understand the The Mesozoic Aviary - Oct 9, 2007 American ScientistThe text also provides information on the phylogenetic position of birds among vertebrates in general, concluding (unsurprisingly) that they should be The Soup of I - Oct 7, 2007 Monterey County Herald,...abilities, talents, limitations and traditions have brewed to create the phylogenetic Soup of I. We are branded at birth, without our assent. Pool of Marburg Virus, Ebola Cousin Identified in Species of Fruit Bat - Oct 5, 2007 ScienceMode...of nucleotide amplification; a search for Marburg virus-specific antibodies in the blood; phylogenetic characterization of amplified genomic fragments. Ancient crustaceans: acid bath reveals fossils in the early Cambrian - Oct 5, 2007 Ars Technica,...fossils like Yicaris and Halkieria have been hammering two points home: many of the phylogenetic groups once thought to have exploded onto the scene in Novel Approaches to the Study, Surveillance and Control of ... - Oct 3, 2007 PharmaLive.com (press release),Molecular-Phylogenetic Strategies for Characterization of Uncultured Pathogens (Daniel N. Frank and Robert A. Feldman). 5. Molecular or Immunological Tools Media Credit: Photo courtesy of Eva Emerson - Oct 3, 2007 Daily Trojan Online,The researchers then put together a phylogenetic tree, which shows the relationships among the animals' genetic sequences. While the tests showed some of GI Flora in IBS - Oct 1, 2007 AAP Grand Rounds (subscription),Some of the revealed phylogenetic differences were further confirmed by quantitative polymerase chain reaction assays on individual samples. Cefas: Developments in aquatic microbial ecology - Oct 1, 2007 Fish Update,Additionally, phylogenetic analyses will be based on sequence information of 16S rRNA gene fragments. In order to elucidate which impacts influence specific Convict and Jack Dempsey placed in new genera - Oct 1, 2007 Practical Fishkeeping,...species ever assigned to Archocentrus, and species considered closely related to the type species, Archocentrus centrarchus, in phylogenetic analyses. Information on Ants - Sep 28, 2007 PR-GB.com (press release),Phylogenetic analysis indicates that ants evolved from vespoids in the mid-Cretaceous period about 120 to 170 million years ago. Three new killifish described - Sep 28, 2007 Practical Fishkeeping,It is named after the Greek omega, an allusion to the end and a reference to the phylogenetic position of this species reltive to C. alpha (‘the beginning’) Metagenomics of the Deep Mediterranean, a Warm Bathypelagic Habitat - Sep 24, 2007 Scientist Live,We analyzed the library both by phylogenetic screening based on 16S rRNA gene amplification from clone pools and by sequencing both insert extremities of ca Birds ignore physics to fly in 3rd gear - Jul 22, 2007 ABC Science Online,Instead, the birds grouped on the graphs according to their family histories (or phylogenetic groups) rather than the laws of aerodynamics. Molecular phylogeny of the moonseed family (Menispermaceae ... - Aug 9, 2007 Am J Botany (subscription)Phylogenetic relationships were estimated, and the Shimodaira–Hasegawa test was used to compare the likelihood of alternative phylogenetic hypotheses and to IAS: Hepatitis C clusters reveal international transmission among ... - Jul 24, 2007 Aidsmap,Using blood samples, the researchers compared parts of the NS5B sequence of the HCV genome and constructed phylogenetic trees to better understand the Assistant Professor (Tenure-Track Position) - Aug 15, 2007 Nature.com (subscription),We will give particular attention to applicants who are both developing and applying quantitative phylogenetic methods. The successful candidate will be Were host factors or superinfection the key to case of rapid HIV ... - Aug 13, 2007 Aidsmap,Phylogenetic analysis indicated that the patient became superinfected with a second strain of HIV between eight and 15 months after his initial HIV Towards a unified nomenclature system for the highly pathogenic ... - Aug 15, 2007 Abkhazia,Phylogenetic analysis was performed using a variety of approaches on all of the publicly available H5 HA sequences that have evolved from the Snake venom reveals evolutionary digression - Aug 13, 2007 separationsNOW.com (subscription),...in the back whip snake was compared with those from other elapids, vipers, the large colubrid family and some lizards, in a phylogenetic analysis. Africa's HIV transmission laws based on questionable science - Aug 1, 2007 Nature.com (subscription),Phylogenetic analysis helps pinpoint how closely related two isolates of HIV are. In a criminal case, a virologist would obtain genetic sequences of the Biodiversity: Climate change and the ecologist - Aug 3, 2007 Nature.com (subscription),These databases include compilations of genetic sequences of species (for example, GenBank), the phylogenetic relationships of species (Tree of Life, Full Text - Aug 9, 2007 Science Magazine (subscription)This difference withstood controls for phylogenetic non-independence (16) and was due almost entirely to trends of species that had been listed on Annex I The First Art Newspaper on the Net - Jul 29, 2007 Art DailyAt The Field Museum, many scientists are engaged in phylogenetic analysis, determining the evolutionary relatedness among various groups of plants and Full Text - Jul 26, 2007 Science Magazine (subscription)Phylogenetic analyses suggested that one sequence (OS GSB PscA) belonged to a green sulfur bacterium that grouped with PscA from Chloroherpeton thalassium Scientists have no luck controlling primitive, eel-like sea lampreys - Jul 22, 2007 ChronicleHerald.ca,...to try to find out where it fits into the phylogenetic (or evolutionary) tree," said Sandra Clifton of the Washington University Genome Sciences Center. The Petri Dish: Sort species. Battle chaos. - 13 Apr 2007 Stanford Daily,The phylogenetic species concept is one contender. It defines species based on their evolutionary history. As soon as two groups of organisms have Evolution under the microscope - 13 Apr 2007 UT The Daily Texan,Using a large data pool, Jansen can create a phylogenetic tree that shows how closely two organisms are related to one another and can show relatively how Full Text - Apr 12, 2007 Science Magazine (subscription)The output is a reconstruction of the ancestral genome of the monophyletic group and a map of breakpoints in specific branches of an unrooted phylogenetic Biologists Call For Better Choice Of Model Organisms In 'evo-devo' - Apr 4, 2007 Medical News Today (press release),One of the selection criteria deemed most crucial is the phylogenetic position of prospective model organisms, which reflects their evolutionary Full Text - Apr 12, 2007 Science Magazine (subscription)Recent molecular phylogenetic work supports the supposition that, at least for flowering plants, isoprene synthase evolved several times independently (14). Dolphin Watch Attack of the oyster - Apr 12, 2007 Tampa Bay Newspapers,He pulled his head back and peered above the water (an intriguing phylogenetic puzzle considering the superior fact-finding facility of echolocation). Full Text - Apr 12, 2007 Science Magazine (subscription)..."If you are going to understand which genes are primate-specific, you need a pretty broad phylogenetic spectrum, [with] things outside the primate clade but Dr Shantikumar discovers new lung fluke - Apr 11, 2007 E-Pao.net,His findings were supported by the results of joint Indo-Japan-Thai research on the molecular characterisation and phylogenetic analysis of lung fluke Termites are cockroaches after all - Apr 11, 2007 Natural History Museum,The paper Death of an order: a comprehensive molecular phylogenetic study confirms that termites are eusocial cockroaches is published online in the Royal Disputing Coevolution In Herbivorous Insects: Do We Need A ... - Apr 11, 2007 Science Daily (press release)A time-calibrated phylogenetic tree based on three genes of ribosomal RNA and the most extensive sampling of leaf beetle species to date shows that the Full Text - Mar 15, 2007 Science Magazine (subscription)These may appear to be HLA associated, but are not true HLA footprints and may be distinguished through phylogenetic analysis of the viruses, Full Text - Mar 15, 2007 Science Magazine (subscription)The rate of evolution in this gene is approximately constant with time within birds and mammals (11–13) and has been used widely to date phylogenetic events Dino demise no trigger for rise of mammals - Mar 28, 2007 ABC Online,The phylogenetic 'supertree' reveals an evolutionary pattern that contradicts conclusions based on the fossil record. The fossil record suggests there was Primary HIV infection responsible for half of all HIV transmission ... - Mar 25, 2007 Aidsmap,Primary HIV infection accounts for half of all onward transmission, according to rigorous phylogenetic analysis data from Quebec, Canada published in the Full Text - Apr 5, 2007 Science Magazine (subscription)Structural studies and phylogenetic comparisons indicate that the - helical "isoprenoid fold" originally discovered in avian FPPase is found in all of the Full Text - Mar 15, 2007 Science Magazine (subscription)By applying statistical approaches that account for phylogenetic relationships among viral sequences, we show that viral lineage effects rather than immune Rethinking Species - Apr 4, 2007 Astrobiology Magazine..."Conflicts exist between phenotypic and phylogenetic information, the means for classifying non-cultured microbes are limited under the current paradigm, Elsevier Launches New Journal 'Marine Genomics' - Apr 4, 2007 Medical News Today (press release),More specific topics will include: biogeochemistry, microbial carbon utilization and metabolic pathways, ecosystem modelling, distribution and phylogenetic Bony Vertebrate Evolution: Elephant Sharks Closer To Humans Than ... - Apr 2, 2007 Science Daily (press release)Science Daily — The cartilaginous elephant shark has a basal phylogenetic position useful for understanding jawed vertebrate evolution. Dinosaur extinction didn’t cause the rise of present-day mammals ... - Mar 29, 2007 Imperial College London,...the National Science Foundation (NSF), the Earth Institute at Columbia University, and the Cyberinfrastructure for Phylogenetic Research (CIPRES). Did our ancestors outlive dinosaurs? - Mar 28, 2007 Scientist,Bininda-Emonds and a multidisciplinary team of researchers assembled and analyzed a mammalian "supertree," a comprehensive phylogenetic tree that combines From The Desk of Zelnio: Alviniconcha hessleri - Mar 28, 2007 ScienceBlogsPhylogenetic relationship of Alviniconcha gastropods from the Indian Ocean to those from the Pacific Ocean (Mollusca: Provannidae) revealed by nucleotide On Why I Should Have Slept Through Planet Earth - Mar 26, 2007 ScienceBlogsThe time on camera for species A is directly proportional to its weight and phylogenetic distance from invertebrates. How many times do I have to see Crocodiles Swam Atlantic? - Mar 23, 2007 KCRG,..."It is important to include fossil information in a phylogenetic, or evolutionary development, context when assessing the ecological history of modern Full Text - Mar 22, 2007 Science Magazine (subscription)Furthermore, a positive association between MN and gene transfer is consistent with the observed phylogenetic distribution of many recent but few ancient Timely handover for gift pandas - Mar 20, 2007 The Standard,...earlier this year to handpick 606 and 610 out of 17 candidates based on phylogenetic relationships and the evolutionary history of groups of pandas. 'Virtual Switch' Flipped on CAMERA - Mar 18, 2007 GRIDtoday,...will allow users to upload metagenomic data and their metadata, do metagenomic and whole microbial genome annotation, and conduct phylogenetic analyses. Molecular Biology Techniques for Identifying Dermatophytes and ... - Mar 16, 2007 Journal of the American Podiatric Medical Association (subscription)KANO R, NAKAMURA Y, WATARI T, ET AL: Phylogenetic analysis of 8 dermatophyte species using chitin synthase 1 gene sequences. Mycoses 40: 411, 1997.[Medline] High on Speciation - Mar 15, 2007 Science Now,..."It's a surprising result," says phylogenetic biologist John Wiens of Stony Brook University in New York. "I think it'll get people talking." News index | RSS | News Feed Advertisements: Organic Apparel from Patagonia | Insect-repelling clothing |
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