Journal of Environmental Biology

Genetic diversity in some perennial plant species with-in short distances

S.C. Pandeya¹,  A. Chandra² and  P.S. Pathak*²

¹Flat no. 202, Jhavar Estate, Thatipur, Gwalior - 474 011, India

²Indian Grassland and Fodder Research Institute (IGFRI), Gwalior Road, Jhansi - 284 003, India

(Received: April 14, 2005 ; Revised received: October 16, 2005 ; Accepted: November 11, 2005)

Abstract: Distinct morphophysiological variations observed for over 2 years with-in short distances among four perennial plants indicated genetic diversity among the lines growing at three places. The isozyme and SDS polyacrylamide gel banding patterns as genetic markers were used to investigate  four perennial species, namely, Dalbergia sissoo Roxb., Delonix regia (Boj.) Refin., Cassia fistula L. and Calotropis procera R. Br. Plant materials collected from three locations (Agra, Gwalior and Lucknow) differing in climo-edaphic variables were examined for 4 enzyme systems, viz., esterase, polyphenol oxidase, peroxidase and superoxide dismutase (EST, PPO, PRX and SOD). Among the four isozymes SOD and PRX revealed best discriminating power. Protein banding patterns as well as zymogram revealed that Dalbergia sissoo growing at Gwalior was closer to that of Agra; Delonix regia depicted highest similarity between Lucknow and Agra and Calotropis procera of  Lucknow  location was more closer to Gwalior than Agra. The results confirm genetic diversity in the species as a means of adaptation to differing climo-edaphic variables.

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