Definitions for "Genetic erosion"
loss of genetic diversity between and within populations of the same species over time; or reduction of the genetic basis of a species due to human intervention, environmental changes, etc.
the loss of genetic diversity within the same species over time, due to human intervention or environmental changes; random changes in gene frequency in a small population
The loss of genetic diversity in domesticated organisms that has resulted from human reliance on a few genetically uniform varieties of food crop plants and animals.