Bacterial genetics Xiao-Kui Guo PhD
Bacterial Genetics Xiao-Kui GUO PhD
Bacterial genomics Organisation Linear chromosomes Borrelia burgdorferi Streptomces coelicolor Multiple chromosomes Vibrio cholerae · Plasmids Borrelia burgdorferi I7 linear circular plasmids 50%g enome size plasmid replication, " decaying genes". ?Ag variation Transposons IS elements. phages found in most genomes Campylobacter has none Repeats
Bacterial Genomics
Microbial genomics Linear Replicons Streptomycetes Verrucomicrobiales Acidobacterium Chlamydia ynechocystis Anabena ●Myin○ Coprothermobacter Mycoplasma HolophagaT Bacillus Planctomycetes Actinomycetes 2 Cyanobacteria G+C Fusobacteria d agrob Bacteriodaceae Coxiella Firmicutes Chlorobi Gree sulfur Fibrobacter group 出○ Spirochetes Treponema Deyupooous Helicobacter Campylobacter Borrelia o Bacteria Thermus quificales Archaea Deinococcus Thermotogales Thermodesulfobacterium
Microbial Genomics
Number of chromosomes in bacteria Chromosome Species number Mbp Proteobacteria Vibrio cholerae 3.0&1 Rhodobacter sphearoides 3.1&0.9 Burkholderia cepacia 3.5,3.0&1.0 Brucella suis 223332 3.2,2.0&1.1 Rhizobium meliloti 3.5,17&1.4 Agrobacterium tumefaciens 3.0&2.1 Other examples Die enococcus radiodurans 2 2.6&0.41 Borrelia burgdorferi >7(2)0.9t00.026 Leptospira interrogans 4.5&0.35 Red- rRNA genes on multiple chrms Green-important housekeeping genes on multiple chrms Blue- similar replicons present in all natural isolates
Chromosome ploidy pecies orms/cell Escherichia coli Dienococcus radiodurans -10 Borrelia hermsii 13-18 Azotobacter vinlandii >50 Buchnera ~100 Epulopiscium upto>1,000 r varies with growth stage