Trees in the web of life.
Swithers KS, Gogarten JP, Fournier GP
J Biol (2009) 8: 54.
Category: evolution ¤ Added: Nov 13, 2009 ¤ Rating: ◊◊
Reconstructing the 'Tree of Life' is complicated by extensive horizontal gene transfer between diverse groups of organisms. While numerous conceptual and technical obstacles remain, a report in this issue of Journal of Biology from Koonin and colleagues on the largest-scale prokaryotic genomic reconstruction yet attempted shows that such a tree is discernible, although its branches cannot be traced.
Keywords: Bacteria / Evolution, Molecular / Gene Transfer, Horizontal / Genes, rRNA / Genome, Bacterial / Phylogeny / Species Specificity