منابع مشابه
Genealogical evidence for epidemics of selfish genes.
Some genetic elements spread infectiously in populations by increasing their rate of genetic transmission at the expense of other genes in the genome. These so-called selfish genetic elements comprise a substantial portion of eukaryotic genomes and have long been viewed as a potent evolutionary force. Despite this view, little is known about the evolutionary history of selfish genetic elements ...
متن کاملSelfish genes and reproductive fitness.
The 20th century saw two key discoveries in genetics. One took place in the laboratory and established the helical structure of DNA. The other was more of an intellectual revolution: the development of selfish gene theory, also known as gene centred evolution. Most doctors will be far more familiar with the first of these discoveries than the second. They would no doubt find it easier to explai...
متن کاملArchaeological Evidence of Epidemics Can Inform Future Epidemics
The recent Ebola epidemic provides a dramatic example of the devastation and fear generated by epidemics, particularly those caused by new emerging or reemerging diseases. A focus on the control and prevention of diseases in living populations dominates most epidemic disease research. However, research on epidemics in the past provides a temporal depth to our understanding of the context and co...
متن کاملMaternal-effect selfish genes in flour beetles.
A previously unknown class of dominant, maternal-effect lethal M factors was found to be widespread in natural populations of the flour beetle, Tribolium castaneum, collected on several continents. Such factors are integrated into the host chromosomes at variable locations and show the remarkable property of self-selection by maternal-effect lethality to all hatchlings that do not inherit a cop...
متن کاملEvidence against the selfish operon theory.
According to the selfish operon hypothesis, the clustering of genes and their subsequent organization into operons is beneficial for the constituent genes because it enables the horizontal gene transfer of weakly selected, functionally coupled genes. The majority of these are expected to be non-essential genes. From our analysis of the Escherichia coli genome, we conclude that the selfish opero...
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ژورنال
عنوان ژورنال: Proceedings of the National Academy of Sciences
سال: 2002
ISSN: 0027-8424,1091-6490
DOI: 10.1073/pnas.172318099