Molecular Biology Reports

, Volume 36, Issue 7, pp 1929–1935 | Cite as

Genetic divergence and phylogenetic analysis of genus Jatropha based on nuclear ribosomal DNA ITS sequence

  • D. V. N. Sudheer Pamidimarri
  • Balaji Chattopadhyay
  • Muppala P. Reddy
Article

Abstract

The genus Jatropha belongs to the family Euphorbiaceae having significant economic importance. The present investigation was undertaken with an aim to understand phylogenetic relationships among seven species (J. curcas, J. glandulifera, J. gossypifolia, J. integerrima, J. multifida, J. podagrica, and J. tanjorensis.) which are widely distributed in India, using nuclear ribosomal DNA ITS sequence (nrDNA ITS) and to compare the results with multilocus marker analysis systems reported earlier for the same genus. The size variation obtained among sequenced nrDNA ITS regions was narrow and ranged from 647 to 654 bp. The overall mean genetic distance (GD) of genus Jatropha was found to be 0.385. Highest interspecific GD (0.419) was found between J. glandulifera and J. multifida. The least interspecific GD (0.085) was found between J. gossypifolia and J. tanjorensis. The highest intraspecific GD was observed in J. podagrica (0.011) and least in J. gossypifolia (0.002). The phylogram obtained using nrDNA ITS sequence showed congruence with the phylograms obtained using multilocus markers system reported earlier with minor variations. The present study also strongly supports high phylogentic closeness of J. curcas and J. integerrima. The only exception found was J. podagrica which clustered with J. multifida in earlier based on multilocus marker analysis, was clustered with J. curcas in the present analysis. The sequence data generated in the present investigation will help for further studies in intraspecies population, and their phylogentic analysis, biogeographical, molecular evolution studies and also pave way for future phylogetic and/or evolution studies among the other groups belongs to the family Euphorbiaceae.

Keywords

Genetic divergence Phylogeny Jatropha and nrDNA ITS region 

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Copyright information

© Springer Science+Business Media B.V. 2008

Authors and Affiliations

  • D. V. N. Sudheer Pamidimarri
    • 1
  • Balaji Chattopadhyay
    • 2
  • Muppala P. Reddy
    • 1
  1. 1.Discipline of Wasteland ResearchCentral Salt and Marine Chemicals Research Institute (CSIR)BhavnagarIndia
  2. 2.Department of Animal Behaviour and Physiology, School of Biological ScienceMadurai Kamaraj UniversityMaduraiIndia

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