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- Title
Whole-genome analysis of photosynthetic prokaryotes.
- Authors
Raymond, Jason; Zhaxybayeva, Olga; Gogarten, J Peter; Gerdes, Sveta Y; Blankenship, Robert E
- Abstract
The process of photosynthesis has had profound global-scale effects on Earth; however, its origin and evolution remain enigmatic. Here we report a whole-genome comparison of representatives from all five groups of photosynthetic prokaryotes and show that horizontal gene transfer has been pivotal in their evolution. Excluding a small number of orthologs that show congruent phylogenies, the genomes of these organisms represent mosaics of genes with very different evolutionary histories. We have also analyzed a subset of "photosynthesis-specific" genes that were elucidated through a differential genome comparison. Our results explain incoherencies in previous data-limited phylogenetic analyses of phototrophic bacteria and indicate that the core components of photosynthesis have been subject to lateral transfer.
- Publication
Science (New York, N.Y.), 2002, Vol 298, Issue 5598, p1616
- ISSN
1095-9203
- Publication type
Journal Article
- DOI
10.1126/science.1075558