EVOLUTION OF HOST SPECIFICITY DRIVES REPRODUCTIVE ISOLATION AMONG RNA VIRUSES
نویسندگان
چکیده
منابع مشابه
Evolution of host specificity drives reproductive isolation among RNA viruses.
Ecological speciation hypotheses claim that assortative mating evolves as a consequence of divergent natural selection for ecologically important traits. Reproductive isolation is expected to be particularly likely to evolve by this mechanism in species such as phytophagous insects that mate in the habitats in which they eat. We tested this expectation by monitoring the evolution of reproductiv...
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Coevolutionary interactions between plants and their associated pollinators and seed dispersers are thought to have promoted the diversification of flowering plants (Raven 1977; Regal 1977; Stebbins 1981). The actual mechanisms by which pollinators could drive species diversification in plants are not fully understood. However, it is thought that pollinator host specialization can influence the...
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The successful replication of a viral agent in a host is a complex process that often leads to a species specificity of the virus and can make interspecies transmission difficult. Despite this difficulty, natural host switch seems to have been frequent among viruses of lower vertebrates, especially fish viruses, since there are several viruses known to be able to infect a wide range of species....
متن کاملEpisodic evolution of RNA viruses.
The molecular clock and the neutral allele theory have been intimately intertwined since both were conceived in the 1960s (1-3). The molecular clock embodies the observation that rates of molecular evolution are nearly constant; the neutral allele theory provides a mechanistic explanation for the constancy. Like most relationships, that between the neutral theory and the molecular clock has had...
متن کاملRNA viruses – evolution in action
remain unreconciled with frequent anthropomorphic interpretations of their own work. To others, the theory of evolution is additionally difficult to comprehend and win universal acceptance because it operates so slowly and imponderably on the most important objects of study, ourselves and the primates from whom we descend. With RNA viruses, however, we have the opportunity to observe evolution ...
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ژورنال
عنوان ژورنال: Evolution
سال: 2007
ISSN: 0014-3820,1558-5646
DOI: 10.1111/j.1558-5646.2007.00226.x