Search results
Results from the WOW.Com Content Network
Genetic pollution is a term for uncontrolled [1] [2] gene flow into wild populations. It is defined as "the dispersal of contaminated altered genes from genetically engineered organisms to natural organisms, esp. by cross-pollination", [3] but has come to be used in some broader ways.
Gene–environment interaction occurs when genetic factors and environmental factors interact to produce an outcome that cannot be explained by either factor alone. [6] For example, a study found that individuals carrying the genetic variant 5-HTT (the short copy) that encodes the serotonin transporter were at a higher risk of developing depression when exposed to adverse childhood experiences ...
The interaction between the genetic factors and environmental stimulus is what results in the disease phenotype. [19] There may be significant public health benefits in using gene by environment interactions to prevent or cure disease. [20] An individual's response to a drug can result from various gene by environment interactions. [19]
Genetic erosion in agricultural and livestock is the loss of biological genetic diversity – including the loss of individual genes, and the loss of particular recombinants of genes (or gene complexes) – such as those manifested in locally adapted landraces of domesticated animals or plants that have become adapted to the natural environment in which they originated.
With primary causes being warming ocean waters, ocean acidity, and pollution. [149] In 2008, a worldwide study estimated that 19% of the existing area of coral reefs had already been lost. [ 150 ] Only 46% of the world's reefs could be currently regarded as in good health [ 150 ] and about 60% of the world's reefs may be at risk due to ...
Human-mediated gene flow: The captive genetic management of threatened species is the only way in which humans attempt to induce gene flow in ex situ situation. One example is the giant panda which is part of an international breeding program in which genetic materials are shared between zoological organizations in order to increase genetic ...
Many conservationists argue that genetic rescue could create unforeseen problems for species at risk, and that it overlooks the underlying problems that push so many species to the brink of extinction, including habitat loss due to human development. [11] As with the term genetic pollution, 'genetic rescue' has political connotations.
Genetic diversity on the population level is a crucial focus for conservation genetics as it influences both the health of individuals and the long-term survival of populations: decreased genetic diversity has been associated with reduced average fitness of individuals, such as high juvenile mortality, reduced immunity, [2] diminished ...