ISSN:
1573-3297
Keywords:
mating success
;
allozyme polymorphism
;
overdominance
;
mating latency
;
Adh locus
;
Drosophila melanogaster
;
rare genotype mating advantage
;
alcohol dehydrogenase
;
statistical methods
Source:
Springer Online Journal Archives 1860-2000
Topics:
Biology
,
Psychology
Notes:
Abstract Strains ofDrosophila melanogaster having different alcohol dehydrogenase (Adh) genotypes (FF, FS, or SS) were assembled in a mating chamber in varying ratios, and the mating successes were recorded. In experiments with a 25∶25 ratio, theFF males succeeded in mating more than didFS andSS males, while theFS males surpassed theSS males. As for the females,FF also surpassedSS. In experiments with a 5∶45 or 45∶5 ratio, some differences from the 25∶25 ratio occurred, but in these cases the rare genotypes were at a disadvantage. In one case, female genotypes (FF vs.SS) displayed a difference in mating latency time, but male genotypes did not. The findings did not suggest that rare genotype mating advantage and overdominance in mating success play a role in the maintenance of theAdh polymorphism.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF01067318
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