ISSN: 0973-7510

E-ISSN: 2581-690X

Pyusha J. Dudhatra, Kajal G. Solanki, Jigna G. Tank , Bhavisha P. Sheth and Vrinda S. Thaker
1Centre for Advanced Studies in Plant Biotechnology and Genetic Engineering, Department of Biosciences, Saurashtra University, Rajkot – 360005, India.
J Pure Appl Microbiol. 2014;8(4):3345-3355
© The Author(s). 2014
Received: 15/03/2014 | Accepted: 17/06/2014 | Published: 31/08/2014

Pollution is one of the most serious environmental problems; it significantly changes the environmental conditions and profoundly influences the distribution of bacterial communities. Here, the influence of automobiles pollution on the community composition, diversity and evolution of bacteria in Rajkot (Gujarat, India) was investigated. Phylogenetic analysis of 16S rDNA genes showed that the majority of bacterial sequences undergo evolutionary changes in order to adapt in harsh conditions. Bacteria of same genus and species surviving in different areas (Polluted and non-polluted) showed differences in clade and phylogenic relationships for 16S rDNA gene sequences. The analysis of DNA polymorphisms in 16S rDNA sequences by DnaSP 5.10 software showed that the bacterial species undergo haplotype variations which leads to mutation in 16S rDNA gene at nucleotide level.  These provided insights into the evolutionary forces acting on populations and species due to change in environmental condition by pollution.


Pollution, Bacteria, 16S rDNA, Haplotype variations

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© The Author(s) 2014. Open Access. This article is distributed under the terms of the Creative Commons Attribution 4.0 International License which permits unrestricted use, sharing, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made.