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Coloring in the tree of life
1School of Natural Sciences, University of California, Merced, CA 95301, USA. jason.raymond@ucmerced.edu
Abstract:
Metagenome sequencing presents an exciting new tool for assessing microbial diversity in complex, natural communities that cannot be cultured in the laboratory. Using metagenomics as a starting point, Bryant et al. (2007) have discovered a new thermophilic phototroph from a poorly characterized bacterial phylum with no previously known photosynthetic members, extending the range of photosynthesis into a new branch on the tree of life. This new organism, Candidatus Chloracidobacterium thermophilum, encompasses a mélange of traits distinct from known phototrophs.
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