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Open AccessArticle

Intraspecific Variation in Commiphora wightii Populations Based on Internal Transcribed Spacer (ITS1-5.8S-ITS2) Sequences of rDNA

Department of Biotechnology, Birla Institute of Technology, Mesra-835215, Ranchi, Jharkhand, India
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Diversity 2009, 1(2), 89-101; https://doi.org/10.3390/d1020089
Received: 15 September 2009 / Accepted: 19 October 2009 / Published: 26 October 2009
(This article belongs to the Special Issue Assessment of Plant Genetic Diversity)
Commiphora wightii is an endangered, endemic species found in the Thar Desert of Rajasthan, India and adjoining areas of Pakistan. The populations of this plant are rapidly dwindling due to overexploitation for their medicinally important resin. Analysis of nucleotide sequences of the internal transcribed spacer of rDNAs revealed low genetic diversity (π = 0.03905; θw = 0.05418) and high population structure (ϕST = 0.206). Parsimony based assessment and Bayesian analyses were conducted on the dataset. Mantel’s test showed a statistically significant positive correlation between genetic and geographic distance (r2 = 0.3647; p = 0.023). Anthropogenic overexploitation of C. wightii for its natural resources has resulted in population fragmentation. Initiatives should be taken immediately to preserve the diversity of this important plant species. View Full-Text
Keywords: internal transcribed spacer; rDNA; genetic diversity; guggul; endangered; endemic internal transcribed spacer; rDNA; genetic diversity; guggul; endangered; endemic
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Haque, I.; Bandopadhyay, R.; Mukhopadhyay, K. Intraspecific Variation in Commiphora wightii Populations Based on Internal Transcribed Spacer (ITS1-5.8S-ITS2) Sequences of rDNA. Diversity 2009, 1, 89-101.

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