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Topic: Hybrid (biology)


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In the News (Wed 9 Dec 09)

  
 Hybrid - Wikipedia, the free encyclopedia
The use of the same term "hybrid" for two entirely different biological phenomena thwarted his later efforts." ( This is Biology, 1997, p58f).
The third meaning is in molecular biology, see Hybridisation (molecular biology).
Hybrids are often named by the portmanteu method, combining the names of the two parent species.
en.wikipedia.org /wiki/Hybrid

  
 Hybrid - Wikipedia, the free encyclopedia
The third meaning is in molecular biology, see Hybridization (molecular biology).
Hybrids should not be confused with chimaeras such as the chimera between sheep and goat known as the geep.
Hybrids are often named by the portmanteau method, combining the names of the two parent species.
en.wikipedia.org /wiki/Hybrid   (1485 words)

  
 OUP: Yeast Two-Hybrid System: Bartel
The yeast two-hybrid system is among the most powerful and generally useful methods for screening genes that are functional in various physiological processes and systems, and for determining gene interactions.
Fields is one of the pioneers and leading practitioners of this approach, and the volume provides an accessible, critical summary of the methods and range of applications of gene screening possible with the yeast two-hybrid system.
Readership: Researchers and graduate students in molecular biology, microbiology, genetics, cell biology, and physiology.
www.oup.co.uk /isbn/0-19-510938-4   (1485 words)

  
 ScienceDaily: Synthetic Biology: Researchers Mass Produce Genes On A Chip
A forerunner to the synthetic gene was the birth of recombinant DNA (the joining of DNA from different species and subsequently inserting the hybrid DNA into a host cell) about 30 years ago.
Biochemistry Molecular Biology of Plants is a major contribution to the plant sciences literature, superbly edited by three distinguished scientists, Bob B. Buchanan, Wilhelm Gruissem, and Russell...
Similar advances are being made in the emerging field of synthetic biology at the...
www.sciencedaily.com /releases/2005/01/050106104919.htm   (2033 words)

  
 Jones Encyclopedia of Media & Technology Information
A cable modem is an electronic device that provides high-speed Internet (or gateway) access via the hybrid Fiber-Coax (HFC) networks of Cable Multiple Systems Operators (MSOs).
Advances in the fields of physics, biology, engineering, chemistry, and computer science have enabled scientists to manipulate materials at the molecular and atomic levels, leading to the establishment of a new field called nanoscience or nanotechnology.
Offering telephone service was seen as a strategic play that could add incremental revenue from the industry's large customer base that already subscribed to television service.
www.jonesencyclo.com /trends.cfm   (2033 words)

  
 Curriculum vitae, R. T. Dillon
Dillon, R.T., and J.J. Manzi (1989) Genetics and shell morphology in a hybrid zone between the hard clams, Mercenaria mercenaria and M.
Sabbatical replacement, teaching General Biology, Genetics, Invertebrate Zoology.
Dillon, R.T. and A.R. Wethington (1992) The inheritance of albinism in a freshwater snail, Physa heterostropha.
www.cofc.edu /~dillonr/cvweb.htm   (1573 words)

  
 References on Otoliths / Otolith Morphology
Differences in otolith morphology among the two subspecies of largemouth bass and their F1 hybrid.
Journal of Experimental Marine Biology and Ecology 58:127-134.
Journal of Experimental Marine Biology and Ecology 62:251-259.
life.bio.sunysb.edu /ee/seatrout/otolith_references.html   (1573 words)

  
 Brown University Division of Biology and Medicine
It houses five basic biology departments offering undergraduate and graduate biology courses, 14 clinical departments, and two hybrid departments (with both clinical and campus-based faculty).
The Division of Biology and Medicine and Brown Medical School are the administrative home for faculty whose primary roles are in research, education, or clinical care related to the domains of biology, medical science, and public health.
Brown University's Division of Biology and Medicine comprises the Program in Biology, the Medical School, and the Program in Public Health.
biomed.brown.edu   (152 words)

  
 BIO 304. Ecology & Evolution: Macroevolution
In Europe, the Hooded Crow (Corvus corone cornix) and the Carrion Crow (Corvus corone corone) are two subspecies of the same species, and their hybrid zone is very narrow.
When two populations that were evolving in geographical isolation come in contact they may hybridize, but the gene flow can be very restricted depending on the degree of genetic differences.
The Kaibab squirrel (Sciurus aberti kaibabensis, left) became geographically isolated from the common ancestor with its closest relative, the Abert squirrel (Sciurus aberti aberti, right) in the North Rim of the Grand Canyon about 10,000 years ago.
www.micro.utexas.edu /courses/levin/bio304/evolution/speciation.html   (152 words)

  
 Xth Congress of the European Society for Evolutionary Biology
Evolutionary biology has recently seen a resurgent interest in the architecture of complex traits under selection and the distribution of quantitative genetic variation in the wild, with studies of a wide range of taxa generating many exciting new results.
Evolution has become increasingly important as a part of modern molecular biology, because interpreting the data generated by genome sequencing projects is difficult without an evolutionary perspective.
Natural hybridization has been considered important in plant evolution, but its importance as a mechanism of speciation remains controversial particularly in animals where a hybrid origin of species has been only rarely observed.
www.eko.uj.edu.pl /eseb/symposia.asp   (3814 words)

  
 Professor Jeremy Searle
Our studies have demonstrated the importance of hybrid zones as a source of new races and potential sites of speciation in house mice and common shrews.
Scandinavian (Viking?) colonisation of Maderia by house mice and colonisation of Ireland by pygmy shrews from France/Spain.
The colonisation history of island populations is also studied with molecular markers.
www.york.ac.uk /depts/biol/staff/jbs.htm   (346 words)

  
 Interracial Marriage and Hybrid Vigor
You can also remind people what you learned in biology or genetics class about hybrid vigor and Mendel's pea plant experiments.
Teach them to be proud of both their heritages, and also teach them about bigotry and discrimination.
Plants cross bred will produce healthier, stronger, and bigger plants than those inbred.
www.drdaveanddee.com /marriage1.html   (346 words)

  
 Whole Earth: Hybrid Vigor
The biological term for which Stewart named the Hybrid Vigor Institute describes the good juju that happens at the edges of a field when pollen from wild plants mingles with the cultivated ones, thereby increasing the strength and yield of the crops.
Despite the fact that our intention is, in part, to produce some vigorous mutts from today's blueblood academic stock, I want to make it clear that we are not trying to abolish disciplines such as biology or physics, sociology, or whichever your favorite may be.
(And, yes, we know it's an imprecise metaphor; please don't write and lecture us about it.) Hybrid vigor is also responsible for the rude health and longevity of crossbred animals (which led Stewart to add, "You could also just call it 'Mutt'").
www.wholeearthmag.com /ArticleBin/443.html   (346 words)

  
 cdc04workshops.html
Stochastic hybrid systems are systems that combine continuous dynamics with discrete/logic components and are affected by uncertainty.
The theory will be intertwined with applications, primarily in physics, biology, ecology and technological networks.
These energy conversion systems exhibit hybrid (continuous/discrete) dynamics.
control.bu.edu /ieee/cdc04/cdc04workshops.html   (3681 words)

  
 Maternal and Paternal Lineages in Cross-Breeding Bovine Species. Has Wisent a Hybrid Origin? -- Verkaar et al. 21 (7): 1165 -- Molecular Biology and Evolution
Introgressive hybridization and nonconcordant evolutionary history of maternal and paternal lineages in North American deer.
Hybridization of banteng (Bos javanicus) and zebu (Bos indicus) revealed by mitochondrial DNA, satellite DNA, AFLP and microsatellites.
An ancient hybridization would have been facilitated by the
mbe.oxfordjournals.org /cgi/content/full/21/7/1165   (3037 words)

  
 IU Biology Faculty: Loren Rieseberg
On the other hand, if hybrids are fertile and vigorous, hybridization can lead to the genetic assimilation of the rare taxon by a numerically larger one.
If hybrids are sterile or inviable, then rare populations may have reduced fitness because gametes are wasted in the formation of unfit hybrid individuals.
My lab group uses a combination of genetic and ecological approaches to address questions in the areas of speciation, domestication, and conservation biology.
www.bio.indiana.edu /facultyresearch/faculty/Rieseberg.html   (944 words)

  
 Mouse Tumor Biology System (MTB) (BETA)
Version 1.0 of the new Mouse Tumor Biology database is now publicly available.
The Mouse Tumor Biology (MTB) Database supports the use of the mouse as a model system of hereditary cancer by providing electronic access to:
Information on genetically defined mice (inbred, hybrid, mutant, and genetically engineered strains of mice) in which tumors arise,
tumor.informatics.jax.org /mtbwi/index.do   (287 words)

  
 Welcome to Surf Erie
The Pleione Website - Paul Cumbleton in the UK presents information about the genus, including cultivation, taxonomy, hybrid list, photo gallery, and supplier directory.
Science: Biology: Flora and Fauna: Plantae: Magnoliophyta: Liliopsida: Orchidaceae (241)
Mark's Inspiring Plants: Pleiones - Gardener in England provides information and photos showing the cultivation of these small semi-hardy orchids.
www.surferie.net /index.php?browse=/Home/Gardening/Plants/Orchids   (1106 words)

  
 Taxonomy on the Web
Located at The University of Texas, "BioTech is a hybrid biology/chemistry educational resource and research tool on the World Wide Web...8300+ terms deal with biochemistry, biotechnology, botany, cell biology and genetics.
An excellent explanation and lesson on phylogeny from the Department of Biology at the University of Tennessee at Martin.
Contains cross-referenced definitions of more than 65,000 words related to medicine, biology, chemistry and other branches of science.
mclibrary.nhmccd.edu /taxonomy/taxonomy.html   (938 words)

  
 Handbook of Freshwater Fishery Biology: Volume III
The Handbook of Freshwater Fishery Biology summarizes the available data on age, growth, length weight, fecundity, reproductive behavior feeding habits, and necessary environment for each freshwater species.
Volume III includes Ichthyopercids and Percids; including white and yellow perch, white, yellow, striped and hybrid bass, darters, walleyes, and saugers.
These volumes have, for over 30 years, been the most readily available source listing the scattered articles, theses, bulletins, and research on freshwater fish in the United States and Canada.
store.blackwell-professional.com /0813829992.html   (159 words)

  
 The Department of Theoretical Ecology
HAAS, F. and BRODIN, A. The Crow Corvus corone hybrid zone in southern Denmark and northern Germany.
www.teorekol.lu.se /tb-publications.html   (159 words)

  
 The Yeast Split-Ubiquitin Membrane Protein Two-Hybrid Screen Identifies BAP31 as a Regulator of the Turnover of Endoplasmic Reticulum-Associated Protein Tyrosine Phosphatase-Like B -- Wang et al. 24 (7): 2767 -- Molecular and Cellular Biology
Reverse two-hybrid and one-hybrid systems to detect dissociation of protein-protein and DNA-protein interactions.
A genetic system based on split-ubiquitin for the analysis of interactions between membrane proteins in vivo.
Unfolded cholera toxin is transferred to the ER membrane and released from protein disulfide isomerase upon oxidation by Ero1.
mcb.asm.org /cgi/content/full/24/7/2767   (159 words)

  
 Practical Fishkeeping magazine Alcyonium may be of hybrid origin
The octocoral genus Alcyonium may have evolved through hybridisation, according to a new molecular study due to be published next month.
Two scientists from the Department of Biology at Harvey Mudd College in the USA will provide new evidence in the journal Molecular Ecology to show that Alcyonium may have arisen through the crossing of the European soft corals Alcyonium hibernicum and Bellonella bocagei.
(2004) - Molecular evidence for the hybrid origin of species in the soft coral genus Alcyonium (Cnidaria: Anthozoa: Octocorallia).
www.practicalfishkeeping.co.uk /pfk/pages/item.php?news=306   (491 words)

  
 Real-Time PCR [M.Tevfik DORAK]
When the beacon hybridises to the target during the annealing step, the reporter dye is separated from the quencher and the reporter fluoresces (FRET does not occur).
They have two arms with complementary sequences that form a very stable hybrid or stem.
Hybridisation Probe Chemistry); and (3) DNA-binding agents (
dorakmt.tripod.com /genetics/realtime.html   (491 words)

  
 Detail: The Endangered Species Act: History, Conservation Biology, and Public Policy
A hybrid of policy analysis and ecological assessment, The Endangered Species Act: History, Conservation Biology, and Public Policy will appeal to scholars and students in the fields of natural resource policy and law, conservation biology, political science, wildlife ecology, and environmental history, and to professionals at agencies involved in wildlife conservation.
The Endangered Species Act: History, Conservation Biology, and Public Policy is both a treatise on policy assessment and an excellent history, assessment, and discussion of the ESA itself.
Czech and Krausman provide a historical background of endangered species policy that integrates natural history, socioeconomic trends, political movements, and professional developments.
www.americanplaces.org /books/book_pages/endangered_sa-b_czech.shtml   (271 words)

  
 Molecular Biology Thesis
The yeast two-hybrid system is an excellent molecular approach to study interactions between GlcNAc-TV and other membrane proteins which may play a role in metastasis.
The second component is a "reporter" gene whose expression is easily detected and which lies downstream from the promoter region recognized by the bait.
The third component is known as the "prey", which is a second fusion, one between an unknown protein and an activation domain compatible with the specific reporter system.
endeavor.med.nyu.edu /~strone01/thesis3.html   (271 words)

  
 Jobs in plant developmental evolution
Given the enormous importance of floral homeotic proteins and their interaction behaviour for flower development in eudicots, unraveling the evolutionary trajectories that led to the present day interaction network may help to elucidate the origin of the angiosperm flower – still on of the most enigmatic questions in biology.
In the experimental part of the project, interactions of floral homeotic proteins are studied by “wet lab techniques” such as gel retardation assays, the yeast-2/3/4-hybrid system and co-immunoprecipitation assays.
Candidates applying for this part of the project should have a Diploma or Master degree in Bioinformatics, Biochemistry, Biology or related fields, and should have demonstrable experience with methods of phylogeny reconstruction (e.g.
www.colorado.edu /eeb/MORPH/jobs/jobsoth.html   (852 words)

  
 Everything you need to know about the yeast two-hybrid system - Nature Structural & Molecular Biology
In the fourth variation of the two-hybrid system described by Yang in chapter 16, one of the two hybrid fusion proteins is replaced with a short peptide, making it possible to prepare a combinatorial library of peptides and search for a peptide ligand which binds to any given protein target.
Another application of the one hybrid system is to identify the high affinity DNA sequence that binds to 'orphan' DNA binding proteins.
The three major variations of the yeast two-hybrid system are described in Part I by those who were responsible for their creation.
www.nature.com /cgi-taf/DynaPage.taf?file=/nsmb/journal/v5/n7/full/nsb0798_535.html   (852 words)

  
 Phosphotyrosine interactome of the ErbB-receptor kinase family : Molecular Systems Biology
EGFR and ErbB4, the two fully functional receptor tyrosine kinases of the family, are also the two receptors that were found to have the greatest diversity of interaction partners.
Unlabeled cells were left unstimulated, while two cell populations labeled with Arg6 were stimulated for two minutes and four minutes, respectively, and two cell populations labeled with Arg10 were stimulated for 8 min and 15 min, respectively.
As signaling events are often characterized by phosphorylation of receptors and downstream interaction partners, the peptide−protein interaction screen (Schulze and Mann, 2004) was further developed for high sample throughput and used to map the primary binding partners of phosphorylated tyrosine residues of the ErbB-receptor family.
www.nature.com /uidfinder/10.1038/msb4100012   (852 words)

  
 Course Overview for Advanced Molecular Biology Laboratory
The two-hybrid system has been used successfully to study interactions between proteins we suspected could interact from other studies, to screen libraries to find other proteins that interact with proteins of interest, and to identify substrates for enzymes.
Fields and Song (1989) showed that protein-protein interactions could be studied using a system of two hybrid proteins containing parts of Gal4p.
One-hybrid system to identify transcriptional activators and DNA binding proteins
www-class.unl.edu /bios451/overview.html   (852 words)

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