Genetic Differentiation Caused by Chromium Treatment in Leersia hexandra Swartz Revealed by RAPD Analysis

X. W. Cai, Y. Shao, Z. M. Lin

College of Earth Science, Guilin University of Technology, Guilin City, China.

DOI: 10.4236/ojss.2014.410037                

Abstract

Randomly amplified polymorphic DNA (RAPD) technique was applied to assess the genetic variations and phylogenetic relationships in genetic differentiation within 4 Chromium-treatment Leersia hexandra. The fresh leaves of Leersia hexandra cultivated on the condition of chrome pollution and exogenous organic acids were used as experimental material. The genomic DNA of Leersia hexandra was extracted by using CTAB method. The results showed that different samples of Leersia hexandra exhibited DNA polymorphism when using the random primer S43, S51and S55 as the primers in the RAPD reaction. One specific DNA band about 1000 bp was found in the sample which treated with 10 mmol/L concentration EDTA when used the S43 primer to RAPD. The obvious differences between different EDTA-treatment levels suggest that EDTA has certain effects on enrichment to heavy metals of Leersia hexandra, it will be more favored to Leersia hexandra accumulation of chromium when EDTA concentration increased.

Keywords

Chromium Treatment, Genetic Differentiation, Randomly Amplified Polymorphic DNA (RAPD), Leersia hexandra Swartz

Conflicts of Interest

The authors declare no conflicts of interest.

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