The polymorphism and divergence of cpDNA in Rhizophora

Anwar E. Aboubakr; Om Alsaad S. Mohammed; Halima.I. Khalil

doi:10.54172/ff6g2x87

Authors

Anwar E. Aboubakr Botany Department, Faculty of Science, Sirte University Author
Om Alsaad S. Mohammed Botany Department, Faculty of Science, Sirte University Author
Halima.I. Khalil Department of Botany, Faculty of Arts and Science, Al-Marj, University of Benghazi Author

DOI:

https://doi.org/10.54172/ff6g2x87

Keywords:

Polymorphism, divergence, cpDNA and Rhizophora

Abstract

This study was aimed to evaluate the DNA sequence polymorphism and divergence of Rhizophora species, this study studied nucleotide polymorphism in chloroplast intergenic space between trnL and trnF genes from samples of Rhizophora taxa collected from different locations in Peninsular Malaysia. High polymorphism was found within the population of Rhizophora taxa, and the nucleotide diversity (Pi) in Rhizphora apiculata, Rhizophora mucronata, Rhizophora stylosa and Rhizophora × lamarckii were 0.03, 0.04, 0.06 and 0.03, respectively. In addition, the relationship between Rhizophora taxa was estimated based on the level of polymorphism and divergence. The most significant relationship of the three Rhizophora species was between R. apiculata and R. mucronata which are closely related. The indel (insertion-deletion) in all Rhizphora species and hybrid was small and the number of polymorphic (segregating) sites was high, especially in R. stylosa. Intra-specific polymorphism was detected in Rhizophora according to the nucleotide diversity estimated by every population and the genetic differentiation (GST) by UPGMA method

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