Journal of Environmental Biology

Genetic diversity in three populations of Avicennia marina

along the eastcoast of India by RAPD markers

Dimendra Hazarika, M. Thangaraj*, Sunil Kumar Sahu and K. Kathiresan

Centre of Advanced Study in Marine Biology, Faculty of Marine Science, Annamalai University, Parangipettai- 608 502, India

*Corresponding Author email : coralholder@yahoo.com

Publication Data

Paper received:

20 August 2011

Revised received:

27 July 2012

Accepted:

10 October 2012

Abstract

Genetic diversity was analysed in three populations of the mangrove species, Avicennia marina by using random amplified polymorphic DNA-polymerase chain reaction (RAPD-PCR). Ten random decamer primers were used to score the diversity from three locations of eastcoast of India: Parangipettai (Tamil Nadu), Kakkinada (Andhra Pradesh) and Sundarbans (West Bengal). These primers produced 388 scorable DNA fragments, of which 252 (64.98%) were polymorphic, 182 (46.90%) were monomorphic, and 14 (3.61%) were unique. RAPD banding patterns displayed variations between and within the populations, while, there was no morphological variation.

Key words

Avicennia marina, RAPD marker, Genetic diversity, Polymorphism

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