In population genetics, the founder effect is the loss of genetic variation that occurs when a new population is established by a very small number of individuals from a larger population. It was first fully outlined by Ernst Mayr in 1942, using existing theoretical work by those such as Sewall Wright. As a result of the loss of genetic variation,...
Found on
http://en.wikipedia.org/wiki/Founder_effect
the loss of genetic variation when a new colony is established by some individuals moving to a new area that is unoccupied. As a result the new population may be distinctively different from its parent population.
Found on
http://en.wikipedia.org/wiki/Glossary_of_fishery_terms
Changes in allelic frequencies that occur when a small group is separated from a large population and establishes a colony in a new location. [
9]
Found on
http://sis.nlm.nih.gov/enviro/iupacglossary/glossaryf.html
A gene mutation seen in a high frequency in a particular population due to the presence of that gene mutation in a singular feline (ancestor) or small number of felines (ancestors).
Found on
http://www.cat-world.com.au/glossary
An important cause of genetic drift in addition to natural selection and random drift. The founder effect is the difference between the gene pool of a population as a whole and that of a newly isolated population of the same species. The founder effect occurs when populations are started from a smal...
Found on
http://www.daviddarling.info/encyclopedia/F/founder_effect.html
The principle that the founders of a new colony carry only a fraction of the total genetic variation in the source population.
Found on
http://www.encyclo.co.uk/local/20206
The establishment of a new population by a few original founders (in an extreme case, by a single fertilized female) which carry only a small fraction of the total genetic variation of the parental population [Ernst Mayr, 1963]. The result is that a given allele, gene, chromosome, or part of a chromosome found in members of the population can be tr...
Found on
http://www.encyclo.co.uk/local/20973
changes in allele frequencies that occur when a subpopulation is formed from a larger one. Typically many rare and usually undesirable alleles are excluded while a few carried by the founders get a big boost in frequency.
Found on
http://www.encyclo.co.uk/local/21448
Type: Term Definitions: 1. an unusually high frequency of a gene in a particular population derived from a small set of unrepresentative ancestors.
Found on
http://www.medilexicon.com/medicaldictionary.php?t=28019
Founder effect: The positive effect on gene frequency when a population (a colony) has only a small number of original settlers (founders) one or more of whom had that gene. For example, the gene for Huntington disease was introduced into the Lake Maracaibo region in Venezuela early in the 19th century. So there are now over a hundred persons with ...
Found on
http://www.medterms.com/script/main/art.asp?articlekey=3511
When a population is very small after the movement of some individuals to a new area that is unoccupied, the genetic makeup of that new group will differ from the makeup of their original source area just by random chance depending on the genetic structure of the founding individuals.
Found on
http://www.nmfs.noaa.gov/pr/glossary.htm
nonselective changes in the genetic makeup of a colonising population during its establishment by a few founding individuals.
Found on
http://www.seafriends.org.nz/books/glossary.htm
the loss of genetic variation when a new colony is established after the movement of some individuals to a new area that is unoccupied. As a result the new population may be distinctively different from its parent population.
Found on
http://www.translationdirectory.com/glossaries/glossary245.php
The difference in gene pools between an original population and a new population founded by one or a few individuals randomly separated from the original population, as when an island population is founded by one or a few individuals; often accentuates genetic drift.
Found on
https://www.encyclo.co.uk/local/21571
the accumulation of random genetic changes in an isolated population as a result of its proliferation from only a few parent colonizers.
Found on
https://www.infoplease.com/dictionary/founder-effect
No exact match found.
