Differentiation of intestinal spirochaetes by multilocus enzyme electrophoresis analysis and 16S rRNA sequence comparisons
| Autor: | Neil S. Jensen, Thad B. Stanton, David J. Hampson, A.J. McLaren, Brace J. Paster, Darren J. Trott, Jae I. Lee |
|---|---|
| Rok vydání: | 1996 |
| Předmět: |
Electrophoresis
Serpulina hyodysenteriae Swine Molecular Sequence Data Brachyspira aalborgi ved/biology.organism_classification_rank.species Spirochaetales Infections Microbiology stomatognathic system Phylogenetics RNA Ribosomal 16S Genetics Animals Molecular Biology Alleles Swine Diseases Base Sequence biology Phylogenetic tree ved/biology Ribosomal RNA biology.organism_classification 16S ribosomal RNA Enzymes Intestines stomatognathic diseases Brachyspira Genes Bacterial Brachyspira hyodysenteriae Spirochaete |
| Zdroj: | FEMS Microbiology Letters. 136:181-186 |
| ISSN: | 1574-6968 0378-1097 |
| DOI: | 10.1111/j.1574-6968.1996.tb08046.x |
| Popis: | Multilocus enzyme electrophoresis (MEE) analysis and comparisons of nearly complete 16S rRNA gene sequences (1416 nucleotide positions) were used to evaluate phylogenetic relationships among Serpulina hyodysenteriae strain B78(T), S. innocens strain B256(T), Brachyspira aalborgi strain 513A(T), and eight uncharacterised strains of swine, avian, and human intestinal spirochaetes. From MEE analysis, nine strains could be assigned to five groups containing other intestinal spirochaetes (genetic distances between groups = 0.6-0.9). Chicken spirochaete strain C1 and B. aalborgi 513A(T) represented unique electrophoretic types and formed their own MEE groups. Despite MEE differences, the 11 strains had highly similar (96.3-99.9%) 16S rRNA sequences. These findings point out limitations of both MEE analysis and 16S rRNA sequence comparisons when used as solitary techniques for classifying intestinal spirochaetes related to Brachyspira/Serpulina species. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|
Plný text