|SREL Reprint #0825|
Rapid Evolution in a Post-Thermal Environment
H. Smith, Michael W. Smith, Stephanie L. Scott
In largemouth bass, there are two common forms of
malate dehydrogenase-1 (MDH-1), which have different thermal characteristics.
A population of this species not only showed an increase in the gene
frequency for the thermally stable form of MDH-1 in response to thermal
effluents from a nuclear production reactor, but also evolved back within 10
years to the natural frequency characteristic for the area when the man-imposed
stress was eliminated. Such
short-term evolutionary responses emphasize the temporally dynamic nature of the
genetic characteristics of biological resources and have implications for their
SREL Reprint #0825
Smith, M.H., M.W. Smith, S.L. Scott, E.H. Liu, and J.C. Jones. 1983. Rapid evolution in a post thermal environment. Copeia 1983:193-197.