Bacterial cheaters

Article Abstract:

Some developmental mutants of Myxococcus xanthus revert to spore production when in a mixture with wild-type cells. They can even be over-represented in the spores in comparison with their original frequency. Genotypic diversity within M. xanthus fruiting bodies is likely to be common in the wild.

Myxobacterales

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Evolvability of an RNA virus is determined by its mutational neighbourhood

Article Abstract:

Research is presented concerning the influence of the accessibility of genotypes which are advantageous on the evolvability of the RNA bacteriophage. The fitness of mutants is discussed.

Gene mutations, Gene mutation, Letter to the Editor, RNA viruses

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Deja vu

Article Abstract:

A long-term study of genetic reversal and phenotype reversal in fruitflies is discussed.

Evolution (Biology), Phenotype, Phenotypes, Transmutation of animals

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