منابع مشابه
Non-Retroviral Fossils in Vertebrate Genomes
Although no physical fossils of viruses have been found, retroviruses are known to leave their molecular fossils in the genomes of their hosts, the so-called endogenous retroviral elements. These have provided us with important information about retroviruses in the past and their co-evolution with their hosts. On the other hand, because non-retroviral viruses were considered not to leave such f...
متن کاملIn vivo selection of randomly mutated retroviral genomes.
Darwinian evolution, that is the outgrowth of the fittest variants in a population, usually applies to living organisms over long periods of time. Recently, in vitro selection/amplification techniques have been developed that allow for the rapid evolution of functionally active nucleic acids from a pool of randomized sequences. We now describe a modification of the nucleic acid-evolution protoc...
متن کاملAllopolyploidy--a shaping force in the evolution of wheat genomes.
Recent studies have shown that allopolyploidy accelerates genome evolution in wheat in two ways: (1) allopolyploidization triggers rapid genome changes (revolutionary changes) through the instantaneous generation of a variety of cardinal genetic and epigenetic alterations, and (2) the allopolyploid condition facilitates sporadic genomic changes during the life of the species (evolutionary chang...
متن کاملWidespread Endogenization of Genome Sequences of Non-Retroviral RNA Viruses into Plant Genomes
Non-retroviral RNA virus sequences (NRVSs) have been found in the chromosomes of vertebrates and fungi, but not plants. Here we report similarly endogenized NRVSs derived from plus-, negative-, and double-stranded RNA viruses in plant chromosomes. These sequences were found by searching public genomic sequence databases, and, importantly, most NRVSs were subsequently detected by direct molecula...
متن کاملChromosomal locations of members of a family of novel endogenous human retroviral genomes.
Human cellular DNA contains two distinguishable families of retroviral related sequences. One family shares extensive nucleotide sequence homology with infectious mammalian type C retroviral genomes (T. I. Bonner, C. O'Connell, and M. Cohen, Proc. Natl. Acad. Sci. USA 79:4709-4713, 1982; M. A. Martin, T. Bryan, S. Rasheed, and A. S. Khan, Proc. Natl. Acad. Sci. USA 78:4892-4896, 1981). The othe...
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ژورنال
عنوان ژورنال: Retrovirology
سال: 2011
ISSN: 1742-4690
DOI: 10.1186/1742-4690-8-s2-o2