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Topic: Fibrobacteres

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	Prokaryotic Phylogeny - Taxonomic Ranking
		Some of these phyla consist of only one or a few species (e.g., Thermomicrobia, Chrysiogenetes, Fibrobacteres, Deferribacters), whereas others such as Proteobacteria, Bacteroidetes, Cyanobacteria, Actinobacteria (high G+C gram-positive) and Firmicutes (low G+C gram-positive) are very large and comprised of thousands of species accounting for more than 90-95% of all known bacteria.
		Fibrobacteres, Chlorobi) were once classified as parts of larger bacterial groups according to common morphological/physiological characteristics, but were later split apart in light of their branch patterns in 16S trees.
		In the process, much of the information regarding the interrelationships between these groups was lost, so that their genealogies and branch order remain unresolved.
	www.bacterialphylogeny.com /taxonomic_ranks.htm (1306 words)

	Fibrobacter-Chlorobi-Bacteriodetes (FCB Group) (Site not responding. Last check: 2007-10-12)
		Fibrobacteres are major rumen bacteria, which enable the ruminants to breakdown and digest plant cellulose.
		Gupta, R.S. (2004) The phylogeny and signature sequences characteristics of Fibrobacteres, Chlorobi and Bacteroidetes.
		Griffiths, E. and Gupta, R.S. (2001) The use of Signature Sequences in Different Proteins to determine the branching order of bacterial divisions: Evidence that Fibrobacter diverged at a similar time to Chlamydia and the Cytophaga-Flavobacteria-Bacteriodes Division.
	www.bacterialphylogeny.com /fcb_group.htm (423 words)

	Prokaryotic Phylogeny - FCB Signatures
		The Fibrobacteres, Chlorobi and Bacteroidetes are presently recognized as three of the main divisions (or phyla) within Bacteria.
		The relationships of these phyla to each other and to other main divisions within bacteria are also not understood at present.
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	www.bacterialphylogeny.com /group_specific/FCB.htm (633 words)

	IngentaConnect The Phylogeny and Signature Sequences Characteristics of Fibrobac... (Site not responding. Last check: 2007-10-12)
		The Phylogeny and Signature Sequences Characteristics of Fibrobacteres, Chlorobi, and Bacteroidetes
		Fibrobacteres, Chlorobi, and Bacteroidetes (FCB group) comprise three main bacterial phyla recognized on the basis of 16S rRNA trees.
		-subunit (5–7 aa) and Serine hydroxymethyl-transferase (14–16 aa), which are commonly present in various Bacteroidetes, Chlorobi, and Fibrobacteres homologs, but not any other bacteria, provide evidence that these groups shared a common ancestor exclusive of all other bacteria.
	api.ingentaconnect.com /content/tandf/bmcb/2004/00000030/00000002/art00004 (422 words)

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