Multiple recent horizontal transfers of a large genomic region in cheese making fungi

Kevin Cheeseman, Jeanne Ropars, Pierre Renault, Joëlle Dupont, Jérôme Gouzy, Antoine Branca, Anne-Laure Abraham, Maurizio Ceppi, Emmanuel Conseiller, Robert Debuchy, Fabienne Malagnac, Anne Goarin, Philippe Silar, Sandrine Lacoste, Erika Sallet, Aaron Bensimon, Tatiana Giraud () and Yves Brygoo
Additional contact information
Kevin Cheeseman: INRA, UMR1319 Micalis
Jeanne Ropars: Origine, Structure, Evolution de la Biodiversité, UMR 7205 CNRS-MNHN, Muséum National d’Histoire Naturelle, CP39, 57 rue Cuvier
Pierre Renault: INRA, UMR1319 Micalis
Joëlle Dupont: Origine, Structure, Evolution de la Biodiversité, UMR 7205 CNRS-MNHN, Muséum National d’Histoire Naturelle, CP39, 57 rue Cuvier
Jérôme Gouzy: LIMP Toulouse, INRA/CNRS, INRA, 24 Chemin de Borde Rouge—Auzeville, CS 52627
Antoine Branca: Univ Paris-Sud, Ecologie, Systématique et Evolution, UMR8079
Anne-Laure Abraham: INRA, UMR1319 Micalis
Maurizio Ceppi: Genomic Vision, 80-84 rue des Meuniers
Emmanuel Conseiller: Genomic Vision, 80-84 rue des Meuniers
Robert Debuchy: Univ Paris-Sud, Institut de Génétique et Microbiologie, UMR8621
Fabienne Malagnac: Univ Paris-Sud, Institut de Génétique et Microbiologie, UMR8621
Anne Goarin: Univ Paris-Sud, Institut de Génétique et Microbiologie, UMR8621
Philippe Silar: Univ Paris-Sud, Institut de Génétique et Microbiologie, UMR8621
Sandrine Lacoste: Origine, Structure, Evolution de la Biodiversité, UMR 7205 CNRS-MNHN, Muséum National d’Histoire Naturelle, CP39, 57 rue Cuvier
Erika Sallet: LIMP Toulouse, INRA/CNRS, INRA, 24 Chemin de Borde Rouge—Auzeville, CS 52627
Aaron Bensimon: Genomic Vision, 80-84 rue des Meuniers
Tatiana Giraud: Univ Paris-Sud, Ecologie, Systématique et Evolution, UMR8079
Yves Brygoo: 13 ruelle d’Aigrefoin 78470 St Rémy-lès-Chevreuse

Nature Communications, 2014, vol. 5, issue 1, 1-9

Abstract: Abstract While the extent and impact of horizontal transfers in prokaryotes are widely acknowledged, their importance to the eukaryotic kingdom is unclear and thought by many to be anecdotal. Here we report multiple recent transfers of a huge genomic island between Penicillium spp. found in the food environment. Sequencing of the two leading filamentous fungi used in cheese making, P. roqueforti and P. camemberti, and comparison with the penicillin producer P. rubens reveals a 575 kb long genomic island in P. roqueforti—called Wallaby—present as identical fragments at non-homologous loci in P. camemberti and P. rubens. Wallaby is detected in Penicillium collections exclusively in strains from food environments. Wallaby encompasses about 250 predicted genes, some of which are probably involved in competition with microorganisms. The occurrence of multiple recent eukaryotic transfers in the food environment provides strong evidence for the importance of this understudied and probably underestimated phenomenon in eukaryotes.

Date: 2014
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DOI: 10.1038/ncomms3876

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