Evidence for a robust sex-specific trade-off between cold resistance and starvation resistance in Drosophila melanogaster
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چکیده
منابع مشابه
No trade-off between learning ability and parasitoid resistance in Drosophila melanogaster.
Learning ability and immunity to parasites are linked at the physiological level in several insect species. The aim of this work was to investigate the relationship between learning and immunity at an evolutionary level. We tested whether selection for improved learning ability in Drosophila melanogaster led to changes in parasitoid resistance as a correlated response. Similarly, we assayed whe...
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The measurement of trade-offs may be complicated when selection exploits multiple avenues of adaptation or multiple life-cycle stages. We surveyed 10 populations of Drosophila melanogaster selected for increased resistance to starvation for 60 generations, their paired controls, and their mutual ancestors (a total of 30 outbred populations) for evidence of physiological and life-history trade-o...
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The ability to withstand periods of scarce food resources is an important fitness trait. Starvation resistance is a quantitative trait controlled by multiple interacting genes and exhibits considerable genetic variation in natural populations. This genetic variation could be maintained in the face of strong selection due to a trade-off in resource allocation between reproductive activity and in...
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1. Starvation resistance is often measured in physiological studies with Drosophila and other insects. One common method involves measuring time until death of groups of insects. This method assumes that survivors are not obtaining nutrition from their vial mates that die early. However, because some Drosophila larvae can scavenge carcasses, this group protocol might inadvertently lead to a ‘ca...
متن کاملEvidence for a trade-off between translational efficiency and splicing regulation in determining synonymous codon usage in Drosophila melanogaster.
In Drosophila melanogaster, synonymous codons corresponding to the most abundant cognate tRNAs are used more frequently, especially in highly expressed genes. Increased use of such "optimal" codons is considered an adaptation for translational efficiency. Need it always be the case that selection should favor the use of a translationally optimal codon? Here, we investigate one possible confound...
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ژورنال
عنوان ژورنال: Journal of Evolutionary Biology
سال: 2005
ISSN: 1010-061X,1420-9101
DOI: 10.1111/j.1420-9101.2004.00871.x