Factbites
 Where results make sense
About us   |   Why use us?   |   Reviews   |   PR   |   Contact us  

Topic: Ecological genetics


Related Topics

In the News (Fri 9 Jan 09)

  
  Genetics - Facts, Information, and Encyclopedia Reference article
The word genetics was first applied to describe the study of inheritance and the science of variation by English scientist William Bateson in a letter to Adam Sedgewick, dated April 18, 1905.
The foundational discipline is population genetics which studies the distribution of and change in allele frequencies of genes under the influence of the four evolutionary forces: natural selection, genetic drift, mutation and migration.
While molecular genetics studies the structure and function of genes at a molecular level, ecological genetics focuses on wild populations of organisms, and attempts to collect data on the ecological aspects of individuals as well as molecular markers from those individuals.
www.startsurfing.com /encyclopedia/g/e/n/Genetics.html   (0 words)

  
  NationMaster - Encyclopedia: Microevolution
Genetic drift is the term used in population genetics to refer to the statistical drift over time of allele frequencies in a finite population due to random sampling effects in the formation of successive generations.
Population genetics is the branch of biology that provides the mathematical structure for the study of the process of microevolution.
Ecological genetics is the study of genetics (itself a field of biology) from an ecological perspective.
www.nationmaster.com /encyclopedia/Microevolution   (1286 words)

  
 Pringle Laboratory
Ecological genetics uses genetics to explore the ecology and especially evolution of organisms.
Ecological geneticists see evolution as a dynamic process that can be observed in nature (for more on ecological genetics see The Ecological Geneticist's Creed on p.
The Pringle laboratory is dedicated to both the use of fungi as tools ideal for testing and elucidating general principles of ecological genetics, and the translation of biological paradigms to fungi.
www.oeb.harvard.edu /faculty/pringle   (148 words)

  
 Evolutionary Genetics (Stanford Encyclopedia of Philosophy)
Where population genetics tends toward a branch of applied mathematics founded on Mendelian axioms, often with minimal contact with data, ecological genetics is grounded in the reciprocal interaction between mathematical theory and empirical observations from field and laboratory.
Ecological genetics began at a time when the major theoretical aspects of the Modern Synthesis were in place, when the marvels of adaptation were clear, but when few empirical examples of natural selection in action were available.
The neutral theory of evolution is the antithesis of ecological genetics.
plato.stanford.edu /entries/evolutionary-genetics   (0 words)

  
 What Is Genetics?
Genetics is the science of genes, heredity, and the variation of organisms.
Following the discovery that DNA is the genetic material, and with the growth of biotechnology and the project to sequence the human genome, the common usage of the word "gene" has increasingly reflected its meaning in molecular biology.
The genetic code is a set of rules, which maps DNA sequences to proteins in the living cell, and is employed in the process of protein synthesis.
www.bionewsonline.com /a/what_is_genetics.htm   (0 words)

  
 sociology - Genetics
Genetics (from the Greek genno γεννώ= give birth) is the science of genes, heredity, and the variation of organisms.
The word genetics was first applied to describe the study of inheritance and the science of variation by English scientist William Bateson in a letter to Adam Sedgewick, dated April 18, 1905.
Ecological genetics again builds upon the basic principles of population genetics but is more explicitly focused on ecological issues.
www.aboutsociology.com /sociology/Genetics   (1415 words)

  
 Ecological genetics
While molecular genetics studies the structure and function of genes at a molecular level, ecological genetics (and the related field of population genetics) studies wild populations of organisms.
Ecological genetics is the title of his 1964 'magnum opus' on the subject.
The most famous example of an ecological genetics study is the of the peppered moth, Biston betularia, though there are many others.
www.askfactmaster.com /Ecological_genetics   (206 words)

  
 INSTITUTE OF GENETICS AND CYTOLOGY
Genetic principles of sugar beet variability in the in vitro culture.
Genetic and ecological principles of using soil microorganisms for working out biological technologies of soil remediation, plant protection and increase in productivity of agricultural crops.
The conception of ecological plant breeding, including methodical approaches to breeding of ecologically stable, energy-effective cultivars with minimum accumulation of pollutants in produce was developed.
biobel.bas-net.by /igc/en/Ecogenet_e.htm   (0 words)

  
 Ecological Genetics
However, ecology and genetics together form the mechanisms of evolutionary change: Ecological interactions or organisms with the biotic and abiotic environment are the context of natural selection -- they determine the phenotype that does the best in a given situation.
Genetic variability within populations for phenotypic characters that are ecologically important determines the speed and directionality of the response of populations to the selection resulting from ecological interactions.
Ecological genetics is thus a point of view in which awareness of variability among organisms is involved in the study of all kinds of ecological interactions, both biotic and abiotic.
lamar.colostate.edu /~hufbauer/Pages/EcoGen.html   (0 words)

  
 Highbeam Encyclopedia - Search Results for Ecological
ecological efficiency (trophic level assimilation efficiency) The ratio between the energy assimilated at one trophic level and that assimilated at the immediately preceding level, usually expressed as a percentage; i.e.
A necessary unity: the articulation of ecological and social explanations of behaviour.
Ecological worldviews and receptivity to different types of arguments for presenting endangered species.
www.encyclopedia.com /SearchResults.aspx?Q=Ecological&StartAt=11   (0 words)

  
 Genetics - an introduction - Citizendium
Genetics (from the Greek γεννάω gennao, to beget or produce) is the science of genes, heredity, and the variation of organisms.
genetics that predate the advent of molecular biology.
Genetic engineering is used as one experimental tool in many areas of genetics to assist ivestigations of how genes work inside organisms.
en.citizendium.org /wiki/Genetics   (0 words)

  
 Wikipedia: Genetics - Wikipedia, the free encyclopedia
The word "genetics" was first suggested to describe the study of inheritance and the science of variation by the prominent British scientist William Bateson in a personal letter to Adam Sedgwick, dated April 18, 1905.
Humans applied knowledge of genetics in prehistory with the domestication and breeding of plants and animals.
Within organisms, genetic information generally is carried in chromosomes, where it is represented in the chemical structure of particular DNA (deoxyribonucleic acid) molecules.
en.pediax.org /Genetics   (0 words)

  
 Priming for Genetics in Ecology - Science - RedOrbit
In its modern form, ecological genetics addresses two broad aspects of biology: (1) the genetic basis of ecologically important traits and (2) the ecological and evolutionary processes that influence patterns of genetic variation in and among natural populations.
Ecological genetics therefore borrows heavily from the conceptual frameworks of population and quantitative genetics, and it represents a powerful and unifying approach for understanding ecological responses and evolution in natural populations.
Ecologically and evolutionarily relevant forces that influence the extent and patterning of genetic variation are considered both individually and in combination.
www.redorbit.com /news/display?id=137059&source=r_science   (0 words)

  
 Tamaki Building - Ecological Genetics Laboratory
The Ecological Genetics laboratory applies DNA technology to a range of environmental research areas, focusing primarily on conservation and pest management.
Determining the extent and distribution of genetic variation provides precise information that can be used to direct conservation actions - for example, the most genetically diverse and unique populations can be identified, which enables conservation priorities to be determined and proper management set in place.
The preservation of genetic diversity in endangered species is important because long-term survival depends on species maintaining sufficient genetic variability to facilitate adaptation to new environmental pressures including habitat modification.
www.landcareresearch.co.nz /about/tamaki/genetics_lab.asp   (0 words)

  
 Ecological Genetics - Book Information
Ecological Genetics fills the market-gap between general accounts of evolutionary biology and specialist texts focusing on individual research topics.
Ecological Genetics addresses the fundamental problems of which of the many molecular markers should be used and how the resulting data should be analysed in clear, accessible language, suitable for upper-level undergraduates through to research-level professionals.
As a University Research Lecturer he teaches in plant conservation genetics, and his research interests are molecular systematics, conservation genetics, and the effects of human activities on plant genetic variation and speciation.
www.blackwellpublishing.com /book.asp?ref=1405100338   (0 words)

  
 Ecological Genetics of Speciation and Hybridization in African cichlid fish
Another unresolved problem associated with the rapid emergence of adaptive diversity is the source of genetic variation that endows some lineages with unusually high rates of phenotypic evolution.
One idea is that hybridization between genetically well differentiated lineages endows hybrid populations with large variation in quantitative traits that allows them to radiate in response to diversifying selection when the opportunity is there, such as in novel or perturbed environments.
We investigate morphological and ecological diversity generated experimentally by interspecific hybridization, as well as hybrid viability and fertility to experimentally parameterise intrinsic and ecological hybrid fitness and functional hybrid diversity in relation to genomic and ecological distinctiveness of parental species.
www.fishecology.ch /research/africancichlidfish.htm   (0 words)

  
 entomology umcp
In this outlook, key ecological parameters (population growth rate, competitive ability, attack rates of predators, etc) are not considered fixed properties of populations or species, but are allowed to evolve in an ongoing feedback between ecology and genetics.
Ecological genetics and the prospects for coevolution of insects and their parasitoids and pathogens.
Kirsten Hural studied the genetics of the interaction between pea aphids and their fungal pathogen, and, again, documented surprising amounts of genetic variation among aphid genotypes in resistance to the fungus.
www.entmclasses.umd.edu /labs/via/ViaLab.html   (0 words)

  
 Ecological genetics of Mpi and Gpi polymorphisms in the acorn barnacle and the spatial scale of neutral and non-neutral ...
Ecological genetics of Mpi and Gpi polymorphisms in the acorn barnacle and the spatial scale of neutral and non-neutral variation
Ecological Genetics of Mpi and Gpi Polymorphisms in the Acorn Barnacle and the Spatial Scale of Neutral and Non-neutral Variation1
We argue that both Mpi and Gpi provide important genetic variation for adaptation to environmental heterogeneity that is recruited under distinct conditions of stress and carbohydrate substrate availability.
www.findarticles.com /p/articles/mi_qa4054/is_200208/ai_n9088164   (0 words)

  
 Genetics Abstracts
Since recent studies have shown that research work conducted in one organism is relevant to many other experimental systems, scientists need a practical means for keeping up with wide-ranging findings that are important to their own studies.
Genetics Abstracts provides that means, sifting the worldwide literature for significant advances as they happen and forging an essential link among different systems.
The burgeoning field of molecular genetics is emphasized, with important information on all aspects of DNA, differentiation and development, RNA, protein synthesis, ribosomes, nuclear proteins and chromatin, enzymes, and gene regulation.
www.csa.com /factsheets/genetics-set-c.php   (0 words)

  
 Ecological Genetics
Of main interest are the parameters that determine the function of genes at the intra-individual molecular level through to the level of ecosystem functioning and resilience.
Ecological genetics considers diverse factors such as geology, climate, chemistry, physics, along with interactions between living organisms and the environments they inhabit.
Ecological genetics uses a statistical framework for understanding origins and patterns of Earth’s biodiversity.
ecologicalgenetics.com   (0 words)

  
 KBS - Faculty - Jeffrey K. Conner
Our research combines laboratory, greenhouse and field work, and includes quantitative and molecular genetic studies of adaptive traits, artificial selection to re-create ancestral floral traits, field measurements of fitness, including molecular genetic determination of paternity, and pollination ecology, including pollinator observations and measurements of pollen removed and deposited by insects.
Expression of additive genetic variances and covariances for wild radish floral traits: Comparison between field and greenhouse environments.
Ecological genetics of induced plant defense against herbivores in wild radish.
www.kbs.msu.edu /Faculty/Conner   (706 words)

  
 Genetics :: Web Articles ::
Classical genetics consists of the techniques and methodologies of genetics that predate the advent of molecular biology.
Population, quantitative and ecological genetics are all very closely related subfields and also build upon classical genetics (supplemented with modern molecular genetics).
While molecular genetics studies the structure and function of genes at a molecular level, ecological genetics focuses on wild populations of organisms, and attempts to collect data on the ecological aspects of individuals as well as molecular markers from those individuals.
www.webarticles.com /Science/Biology/Genetics   (1406 words)

  
 Ecological Genetics: Design, Analysis, and Application   (Site not responding. Last check: )
This handbook to ecological genetics provides useful guidelines to those working in the field and highlights some pitfalls to be avoided.
The introductory chapter discusses why the study of ecological genetics is important; topics of later chapters are markers and sampling, genetic diversity and differentiation, gene flow and mating system, intraspecific phylogenies and phylogeography, speciation and hybridization.
The last chapter looks at a range of case studies that integrate aspects of ecological genetics, from butterflies and ragworts to brown bears and oak trees.
www.booknews.co.uk /Books/Book3487.html   (126 words)

  
 Amazon.com: Ecological Genetics: Books: Leslie A. Real   (Site not responding. Last check: )
Combining ecological fieldwork and laboratory genetics, ecological genetics examines the adjustments and adaptations of wild populations to their environments.
Articles focus on important interactions between genetics and population ecology, delving into issues like gene flow and migration, population differentiation, the maintenance of genetic variation, and the demographic and spatial structure of populations.
This new form of ecological genetics focuses on large-scale geographic variation in demographic and genetic dynamics among small, partially isolated populations and will prove extremely valuable in natural resource management and in rare or endangered species conservation.
www.amazon.com /Ecological-Genetics-Leslie-Real/dp/0691032416   (839 words)

  
 Ecological genetics in TutorGig Encyclopedia
Studies are often done on insects and other organisms that have short generation times, and thus evolve at fast rates.
Ford's genetics school at Oxford in the 1960s is famous for studies, including Bernard Kettlewell's work on the peppered moth.
Improved understanding of molecular genetics however, allowed the development of improved biochemical techniques during the 1980s and 1990s which in turn allowed data on natural populations to be derived.
www.tutorgig.com /ed/Ecological_genetics   (260 words)

  
 A Primer of Conservation Genetics - Cambridge University Press
This concise, entry level text provides an introduction to the importance of genetic studies in conservation and presents the essentials of the discipline in an easy-to-follow format, with main points and terms clearly highlighted.
Connections between conservation genetics and the wider field of conservation biology are interwoven throughout the book.
Written for short, introductory level courses in genetics, conservation genetics and conservation biology, this book will also be suitable for practising conservation biologists, zoo biologists and wildlife managers.
www.cambridge.org /uk/catalogue/catalogue.asp?isbn=0521831105   (0 words)

  
 British Ecological Society
The Ecological Genetics Group was born in 1956, following correspondence between J.W.Gregor (Director of the Scottish Plant Breeding Station, Pentlandfield) and K.Jones (Head of Cytology at the then Welsh Plant Breeding Station, Aberystwyth).
The 2005 annual Ecological Genetics Group meeting was held at the University of Lancaster, Edge Hill from the 21st to 23rd March.
Guest speakers of significance to the world of ecological genetics are a feature of each meeting and previous speakers have included Janis Antonovics, Remy J Petit, Spencer Barrett and Norm Ellstrand.
www.britishecologicalsociety.org /articles/groups/genetics/egghistory   (0 words)

  
 International EcoGen Inc. - Ecological Genetics - Genetic Ecotoxicology
The company is committed to its customers who recognize the urgent need for proactive responsible management of effluents and chemicals to ensure that adverse genetic effects do not occur in animal, plant and human populations living in the local receiving environment.
Genetic damage can affect the very survival of a population and alter the evolutionary destiny of species.
The extent of genetic damage to many of the world's species (including man) by global chemical pollution will only be fully appreciated as more research is completed.
www.intl-ecogen.com   (0 words)

Try your search on: Qwika (all wikis)

Factbites
  About us   |   Why use us?   |   Reviews   |   Press   |   Contact us  
Copyright © 2005-2007 www.factbites.com Usage implies agreement with terms.