ISSN:
1432-2242
Keywords:
Genetic load
;
Balance and mutation theory
;
Lethal equivalence
;
Selection
Source:
Springer Online Journal Archives 1860-2000
Topics:
Biology
Notes:
Summary There are several Colombian populations of Drosophila pseudoobscura which have begun to show divergence. The temporal samples of Torobarroso, one of the local populations identified, demonstrate genetic “resourcefulness” and selective opportunism by fluctuating mortality. The data suggest that both balanced selection and mutational origin are necessary to account for the frequencies of drastic genes encountered. In genetic isolates there seems to exist alternatively a mutational component and a balanced — selection component. These components overcome the damage in the first instance and in the second instance, profit from the recessive load.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF00276567
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