Unit - 2

Eukaryotic diversity and Bacterial phylogeny –Fungal diversity – Protist (algae and protozoa) diversity – Viral diversity – their importance and role in shaping human community. History of bacterial classification – Concept of bacterial phylogeny – Phylogenetic markers – Polyphasic taxonomy – Overall view of bacterial phyla –Bergey’s Manual of Systematic Bacteriology (2nd Edn.).