Eisen, J. A.
Horizontal Gene Transfer Among Microbial Genomes: New Insights from Complete Genome Analysis
Curr Opin Genet Dev. 2000 Dec 01; 10(6): 606-11.
The determination and analysis of complete genome sequences has led to the suggestion that horizontal gene transfer may be much more extensive than previously appreciated. Many of these studies, however, rely on evidence that could be generated by forces other than gene transfer including selection, variable evolutionary rates, and biased sampling.