Progressive genome-wide introgression in agricultural Campylobacter coli

Samuel K Sheppard, Xavier Didelot, Keith A Jolley, Aaron E Darling, Ben Pascoe, Guillaume Meric, David J Kelly, Alison Cody, Frances M Colles, Norval J C Strachan, Iain D Ogden, Ken Forbes, Nigel P French, Philip Carter, William G Miller, Noel D McCarthy, Robert Owen, Eva Litrup, Michael Egholm, Jason P AffourtitStephen D Bentley, Julian Parkhill, Martin C J Maiden, Daniel Falush

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102 Citations (Scopus)


Hybridization between distantly related organisms can facilitate rapid adaptation to novel environments, but is potentially constrained by epistatic fitness interactions among cell components. The zoonotic pathogens Campylobacter coli and C. jejuni differ from each other by around 15% at the nucleotide level, corresponding to an average of nearly 40 amino acids per protein-coding gene. Using whole genome sequencing, we show that a single C. coli lineage, which has successfully colonized an agricultural niche, has been progressively accumulating C. jejuni DNA. Members of this lineage belong to two groups, the ST-828 and ST-1150 clonal complexes. The ST-1150 complex is less frequently isolated and has undergone a substantially greater amount of introgression leading to replacement of up to 23% of the C. coli core genome as well as import of novel DNA. By contrast, the more commonly isolated ST-828 complex bacteria have 10-11% introgressed DNA, and C. jejuni and nonagricultural C. coli lineages each have
Original languageEnglish
Pages (from-to)1051-1064
Number of pages14
JournalMolecular Ecology
Issue number4
Early online date20 Dec 2012
Publication statusPublished - Feb 2013

Bibliographical note

© 2012 Blackwell Publishing Ltd.


  • adaptation
  • campylobacter
  • epistasis
  • genomics
  • introgression


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  • Data from: Progressive genome-wide introgression in agricultural Campylobacter coli

    Sheppard, S. K. (Creator), Didelot, X. (Creator), Jolley, K. A. (Creator), Darling, A. E. (Creator), Kelly, D. J. (Creator), Cody, A. J. (Creator), Colles, F. M. (Creator), Strachan, N. (Creator), Ogden, I. (Creator), Forbes, K. (Creator), French, N. P. (Creator), Carter, P. (Creator), Miller, W. G. (Creator), McCarthy, N. D. (Creator), Owen, R. (Creator), Litrup, E. (Creator), Egholm, M. (Creator), Bentley, S. D. (Creator), Parkhill, J. (Creator), Maiden, M. C. J. (Creator), Falush, D. (Creator), Affourtit, J. P. (Creator), Pascoe, B. (Creator), Meric, G. (Creator) & Edwards, P. (Data Manager), Dryad Digital Repository, 9 Nov 2012


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