Analysis of the effects of inbreeding on lifespan and starvation resistance in Drosophila melanogaster

被引：0
作者：
Terhi M. Valtonen
Derek A. Roff
Markus J. Rantala
机构：
[1] University of Turku,Department of Biology, Section of Ecology
[2] University of California,Department of Biology
来源：
Genetica | 2011年 / 139卷
关键词：
Fitness; Genetic variability; Inbreeding; Lifespan; Outbreeding; Survival; Starvation resistance;
D O I：
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学科分类号：
摘要：
Because of their decreased overall fitness and genetic variability inbred individuals are expected to show reduced survival and lifespan under most environmental conditions as compared with outbred individuals. Whereas evidence for the deleterious effects of inbreeding on lifespan has been previously provided, only a few studies have investigated effects of inbreeding on survival under starved conditions. In the present study we compared the abilities of inbred and outbred adult Drosophila melanogaster to survive under starved and fed conditions. We found that inbreeding reduced lifespan but had no effect on starvation resistance. The results indicate highly trait specific consequences of inbreeding. Possible mechanisms behind the observed results are discussed.
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