Horizontal Gene Transfer of Glycosyl Hydrolases of the Rumen Fungi
Open Access
- 1 March 2000
- journal article
- research article
- Published by Oxford University Press (OUP) in Molecular Biology and Evolution
- Vol. 17 (3), 352-361
- https://doi.org/10.1093/oxfordjournals.molbev.a026315
Abstract
By combining analyses of G+C content and patterns of codon usage and constructing phylogenetic trees, we describe the gene transfer of an endoglucanase (celA) from the rumen bacteria Fibrobacter succinogenes to the rumen fungi Orpinomyces joyonii. The strong similarity between different glycosyl hydrolases of rumen fungi and bacteria suggests that most, if not all, of the glycosyl hydrolases of rumen fungi that play an important role in the degradation of cellulose and other plant polysaccharides were acquired by horizontal gene transfer events. This acquisition allows fungi to establish a habitat within a new environmental niche: the rumen of the herbivorous mammals for which cellulose and plant hemicellulose constitute the main raw nutritive substrate.Keywords
This publication has 32 references indexed in Scilit:
- Cytosolic enzymes with a mitochondrial ancestry from the anaerobic chytrid Piromyces sp. E2Molecular Microbiology, 1998
- The rumen microbial ecosystem—some recent developmentsTrends in Microbiology, 1997
- Sequencing of a 1,3-1,4-beta-D-glucanase (lichenase) from the anaerobic fungus Orpinomyces strain PC-2: properties of the enzyme expressed in Escherichia coli and evidence that the gene has a bacterial originJournal of Bacteriology, 1997
- Characterization of the cyclophilin gene family of Arabidopsis thaliana and phylogenetic analysis of known cyclophilin proteinsPlant Molecular Biology, 1997
- The Cellulosome: An Exocellular, Multiprotein Complex Specialized in Cellulose DegradationCritical Reviews in Biochemistry and Molecular Biology, 1996
- The Conserved Noncatalytic 40-Residue Sequence in Cellulases and Hemicellulases from Anaerobic Fungi Functions as a Protein Docking DomainJournal of Biological Chemistry, 1995
- Neocallimastix frontalis enolase gene, enol: first report of an intron in an anaerobic fungusMicrobiology, 1995
- Prediction of Protein Structural ClassesCritical Reviews in Biochemistry and Molecular Biology, 1995
- Molecular genetics of obligate anaerobes from the rumenFEMS Microbiology Letters, 1994
- Xylanase B from Neocallimastix patriciarum contains a non-catalytic 455-residue linker sequence comprised of 57 repeats of an octapeptideBiochemical Journal, 1994