genetic isolation


Also found in: Medical.

genetic isolation

[jə¦ned·ik īs·əl′ā·shən]
(genetics)
The absence of genetic exchange between populations or species as a result of geographic separation or of mechanisms that prevent reproduction.
References in periodicals archive ?
ST]>0 indicating genetic isolation among regions (24) and supporting the geographic classification mentioned above.
Washington, Apr 19 ( ANI ): Recent research on the domestication of donkeys, camelids (which includes dromedaries, Bactrian camels, llamas and alpacas) pigs, cattle, sheep and goats suggests that neither intentional breeding nor genetic isolation were as significant as traditionally thought.
We are currently beginning an investigation of the degree of genetic isolation in fish inhabiting these systems.
These measures have two aims: to increase favourable habitats for wild bees; and to reduce the genetic isolation of individual populations.
Differences in their genetic diversity, population dynamics, degree of geographic and genetic isolation, and ecological history justify their independent management.
This plant-pollinator monogamy maintains genetic isolation and prevents undesirable pollen from clogging up the works.
Elephant populations in Asia have declined over 70% in the last 100 years, leaving the remaining 35,000 individual elephants vulnerable to pressure from human population expansion, shrinking and degraded habitats, poaching and genetic isolation.
Although the co-habitation of all reproductives does not suggest nest budding in this case, genetic isolation of a subset of workers that maintain constant contact with less genetically differentiated individuals lends support to the hypothesis that physical or functional budding can occur without complete isolation from nestmates (Thorne et al.
During farming, the report warns, "low levels of gene flow will occur at long distances and thus complete genetic isolation will be difficult to maintain," leading to the creation of plants with accumulated genetic traits from different GM varieties.
Oil seed rape presents a high risk of contaminating similar crops and wild plants and complete genetic isolation "will be difficult to maintain" when it is grown in fields.
As I became a homesteader by way of the survivalist movement in the 80s, I was concerned with the long-term effect of genetic isolation on all of my animals.
They envision these engineered hybrids living in a kind of genetic isolation, walled off from the larger biotic community.