ISSN:
1432-2242
Keywords:
Indirect selection
;
Temperature
;
Correlated responses
;
Reproductive isolation
;
Fitness components
;
Enzyme activities
;
Drosophila melanogaster
Source:
Springer Online Journal Archives 1860-2000
Topics:
Biology
Notes:
Summary Short-term indirect selection in Drosophila melanogaster for heat-sensitivity and heat resistance resulted in two strains, one heat sensitive and another heat resistant, and correlated responses were found for the rate of heat shock protein synthesis, behavioral patterns (asymmetrical sexual isolation) and fitness components (fecundity, fertility, viability, developmental time), as well as for several enzyme activities (MDH, G-6-PDH, ADH, ACHE). These responses associated with temperature selection may reflect the effects of differential inbreeding depression caused by homozygosity of temperature sensitive mutations with different pleiotropic effects. Selection even of a very short duration can induce significant adaptive and evolutionary changes.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF00251117
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