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A preliminary analysis of the population genetics and molecular phylogenetics of Onchocerca volvulus (Nematoda: Filarioidea) using nuclear ribosomal second internal transcribed spacer sequences

A preliminary analysis of the population genetics and molecular phylogenetics of Onchocerca volvulus (Nematoda: Filarioidea) using nuclear ribosomal second internal transcribed spacer sequences

Morales-Hojas, R., Cheke, Robert A. ORCID: 0000-0002-7437-1934 and Post, R.J. (2007) A preliminary analysis of the population genetics and molecular phylogenetics of Onchocerca volvulus (Nematoda: Filarioidea) using nuclear ribosomal second internal transcribed spacer sequences. Memórias do Instituto Oswaldo Cruz, 102 (7). pp. 879-882. ISSN 0074-0276 (doi:https://doi.org/10.1590/S0074-02762007005000114)

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Abstract

Nuclear internal transcribed spacer 2 (ITS2) rDNA sequences were used for a molecular phylogenetics
analysis of five Onchocerca species. The sister species of the human parasite O. volvulus was found to be the cattle parasite O. ochengi and not O. gibsoni, contrary to chromosomal evidence. The genetic differentiation of two African populations (representing the two African strains) and a Brazilian population of O. volvulus was also studied. Phylogenetic and network reconstruction did not show any clustering of ITS2 alleles on geo-graphic or strain grounds. Furthermore, population genetics tests showed no indication of population differentiation but suggested gene flow among the three populations.

Item Type: Article
Uncontrolled Keywords: Onchocerca volvulus, onchocerciasis, strains, molecular phylogenetics, population differentiation
Subjects: Q Science > Q Science (General)
Q Science > QH Natural history
Q Science > QH Natural history > QH426 Genetics
Faculty / Department / Research Group: Faculty of Engineering & Science > Natural Resources Institute
Faculty of Engineering & Science > Natural Resources Institute > Agriculture, Health & Environment Department
Related URLs:
Last Modified: 11 Nov 2011 12:06
Selected for GREAT 2016: None
Selected for GREAT 2017: None
Selected for GREAT 2018: None
Selected for GREAT 2019: None
URI: http://gala.gre.ac.uk/id/eprint/2384

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