Journal of Molecular Evolution

, Volume 64, Issue 6, pp 689–701

Segregation and Recombination of a Multipartite Mitochondrial DNA in Populations of the Potato Cyst Nematode Globodera pallida

  • Miles R. Armstrong
  • Dirk Husmeier
  • Mark S. Phillips
  • Vivian C. Blok
Article

DOI: 10.1007/s00239-007-0023-8

Cite this article as:
Armstrong, M.R., Husmeier, D., Phillips, M.S. et al. J Mol Evol (2007) 64: 689. doi:10.1007/s00239-007-0023-8

Abstract

The discovery that the potato cyst nematode Globodera pallida has a multipartite mitochondrial DNA (mtDNA) composed, at least in part, of six small circular mtDNAs (scmtDNAs) raised a number of questions concerning the population-level processes that might act on such a complex genome. Here we report our observations on the distribution of some scmtDNAs among a sample of European and South American G. pallida populations. The occurrence of sequence variants of scmtDNA IV in population P4A from South America, and that particular sequence variants are common to the individuals within a single cyst, is described. Evidence for recombination of sequence variants of scmtDNA IV in P4A is also reported. The mosaic structure of P4A scmtDNA IV sequences was revealed using several detection methods and recombination breakpoints were independently detected by maximum likelihood and Bayesian MCMC methods.

Keywords

Multipartite mitochondrial DNA Recombination Globodera pallida Breakpoint detection 

Supplementary material

Copyright information

© Springer Science+Business Media, LLC 2007

Authors and Affiliations

  • Miles R. Armstrong
    • 1
  • Dirk Husmeier
    • 2
  • Mark S. Phillips
    • 1
  • Vivian C. Blok
    • 1
  1. 1.Plant Pathogen ProgrammeScottish Crop Research InstituteInvergowrieUK
  2. 2.Biomathematics & Statistics Scotland (BioSS)James Clerk Maxwell Building, The King’s BuildingsEdinburghUK

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