Polyphasic taxonomy

Studying phylogeny based on both genotypic and phenotypic information ranging from molecular characteristics to ecological characters.

Numerical Taxonomy

Computer based approaches of grouping organisms is called Numerical taxonomy which is based on presence or absence of selected characters in the group of organisms. It is method of estimating percent similarity (ratio between the number of characters same and total number of characters organisms having). This method has great practical usefulness as well as being relatively unbiased in its approach. It has high degree of stability and predictability.

REFERENCES:

Text Books:

1. Jeffery C. Pommerville. Alcamo's Fundamentals of Microbiology (Tenth Edition). Jones and Bartlett Student edition.

2. Gerard J. Tortora, Berdell R. Funke, Christine L. Case. Pearson - Microbiology: An Introduction. Benjamin Cummings.

Reference Books:

1. Lansing M. Prescott, John P. Harley and Donald A. Klein. Microbiology. Mc Graw Hill companies.

2. Biology, Raven and Jhonson, 6 th edition (2001)

3. Microbiology, Pelczar. M.J , Chan E.C.S, Kreig N.R, 5th edition (2007)