Data from: Conditional reduction of predation risk associated with a facultative symbiont in an insectSarah Polin, Jean-François Le Gallic, Jean-Christophe Simon, Tsutomu Tsuchida & Yannick Outreman
Symbionts are widespread among eukaryotes and their impacts on the ecology and evolution of their hosts are meaningful. Most insects harbour obligate and facultative symbiotic bacteria that can influence their phenotype. In the pea aphid Acyrthosiphon pisum, an astounding symbiotic-mediated phenotype has been recently observed: when infected with the symbiotic bacteria Rickettsiella viridis, young red aphid larvae become greener at adulthood and even darker green when co-infected with Rickettsiella viridis and Hamiltonella defensa. As body...
Data from: Adaptation to resistant hosts increases fitness on susceptible hosts in the plant parasitic nematode Globodera pallidaSylvain Fournet, Delphine Eoche-Bosy, Lionel Renault, Frédéric M. Hamelin & Josselin Montarry
Trade-offs between virulence (defined as the ability to infect a resistant host) and life-history traits are of particular interest in plant pathogens for durable management of plant resistances. Adaptation to plant resistances (i.e., virulence acquisition) is indeed expected to be associated with a fitness cost on susceptible hosts. Here, we investigated whether life-history traits involved in the fitness of the potato cyst nematode Globodera pallida are affected in a virulent lineage compared to an avirulent...
Data from: Effects of complex life cycles on genetic diversity: cyclical parthenogenesisRomuald Rouger, Katja Reichel, Florent Malrieu, Jean Pierre Masson & Solenn Stoeckel
Neutral patterns of population genetic diversity in species with complex life cycles are difficult to anticipate. Cyclical parthenogenesis (CP), in which organisms undergo several rounds of clonal reproduction followed by a sexual event, is one such life cycle. Many species, including crop pests (aphids), human parasites (trematodes) or models used in evolutionary science (Daphnia), are cyclical parthenogens. It is therefore crucial to understand the impact of such a life cycle on neutral genetic diversity. In...
Data from: The genome of the yellow potato cyst nematode Globodera rostochiensis reveals insights into the basis of parasitism and virulenceSebastian Eves-Van Den Akker, Dominik Laetsch, Peter Thorpe, Catherine Lilley, Etienne Danchin, Martine Da Rocha, Corinne Rancurel, Nancy Holroyd, James Cotton, Amir Szitenberg, Eric Grenier, Josselin Montarry, Benjamin Mimee, Marc-Olivier Duceppe, Ian Boyes, Jessica Marvin, Laura Jones, Hazijah Yusup, Joël Lafond-Lapalme, Magali Esquibet, Michael Sabeh, Michael Rott, Hein Overmars, Anna Finkers-Tomczak, Geert Smant … & John Jones
Background: The yellow potato cyst nematode Globodera rostochiensis is a devastating plant pathogen of global economic importance. This biotrophic parasite secretes effectors from pharyngeal glands, some of which were acquired by horizontal gene transfer, to manipulate host processes and promote parasitism. G. rostochiensis is classified into pathotypes with different plant resistance-breaking phenotypes. Results: We generate a high-quality genome assembly for G. rostochiensis pathotype Ro1, identify putative effectors and horizontal gene transfer events, map gene expression...
Data from: Differential gene expression according to race and host plant in the pea aphidIsobel Eyres, Julie Jaquiéry, Akiko Sugio, Ludovic Duvaux, Karim Gharbi, Jing-Jiang Zhou, Fabrice Legeai, Michaela Nelson, Jean-Christophe Simon, Carole M. Smadja, Roger Butlin & Julia Ferrari
Host-race formation in phytophagous insects is thought to provide the opportunity for local adaptation and subsequent ecological speciation. Studying gene expression differences amongst host races may help to identify phenotypes under (or resulting from) divergent selection and their genetic, molecular and physiological bases. The pea aphid (Acyrthosiphon pisum) comprises host races specializing on numerous plants in the Fabaceae and provides a unique system for examining the early stages of diversification along a gradient of genetic...
Institute for Genetics, Environment and Plant Protection5
French National Centre for Scientific Research3
University of Edinburgh2
Canadian Food Inspection Agency1
United States Department of Agriculture1
University of Leeds1
European University of Brittany1
University of Dundee1