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2013-01-01

Bohlmann, Jörg, Wang, Ye, Breuil, Colette, DiGuistini, Scott, Lim, Lynette, Robertson, Gordon

Grosmannia clavigera is a bark beetle-vectored pine pathogen in the mountain pine beetle epidemic in western North America. Grosmannia clavigera colonizes pines despite the trees' massive oleoresin terpenoid defences. We are using a functional genomics approach to identify G. clavigera's...

2013-01-01

Andersson, Martin N., Schlyter, Fredrik, Bohlmann, Jörg, Grosse-Wilde, Ewald, Li, Maria, Keeling, Christopher I., Hansson, Bill S., Bengtsson, Jonas M., Yuen, Macaire M.S., Hillbur, Ylva

Background The European spruce bark beetle, Ips typographus, and the North American mountain pine beetle, Dendroctonus ponderosae (Coleoptera: Curculionidae: Scolytinae), are severe pests of coniferous forests. Both bark beetle species utilize aggregation pheromones to coordinate mass-attacks on...

2009-01-01

Docking, Roderick T., Mardis, Elaine, Hamelin, Richard C., Jones, Steven J. M., Marra, Marco A., Seidel, Michael, Chan, Simon K., Breuil, Colette, Liao, Nancy Y., Birol, Inanc, Robertson, Gordon, Holt, Robert A., Platt, Darren, Bohlmann, Jörg, DiGuistini, Scott, Hirst, Martin

Sequencing-by-synthesis technologies can reduce the cost of generating de novo genome assemblies. We report a method for assembling draft genome sequences of eukaryotic organisms that integrates sequence information from different sources, and demonstrate its effectiveness by assembling an...

2013-01-01

Bohlmann, Jörg, Bonnett, Tiffany R., Pitt, Caitlin, Keeling, Christopher I., Yuen, Macaire M. S., Huber, Dezene P. W., Robert, Jeanne A.

The mountain pine beetle, Dendroctonus ponderosae, is a native species of bark beetle (Coleoptera: Curculionidae) that caused unprecedented damage to the pine forests of British Columbia and other parts of western North America and is currently expanding its range into the boreal forests of...

2013-01-01

Jancsik, Sharon, Bohlmann, Jörg, Quesada, Alfonso L., Zerbe, Philipp, Yuen, Macaire, Hall, Dawn E., Dullat, Harpreet, Madilao, Lina L.

Diterpene resin acids (DRAs) are major components of pine (Pinus spp.) oleoresin. They play critical roles in conifer defense against insects and pathogens and as a renewable resource for industrial bioproducts. The core structures of DRAs are formed in secondary (i.e. specialized) metabolism via...

2014-01-01

Lah, Ljerka, Wang, Ye, Breuil, Colette, Madilao, Lina, Bohlmann, Joerg, Lim, Lynette

To successfully colonize and eventually kill pine trees, Grosmannia clavigera (Gs cryptic species), the main fungal pathogen associated with the mountain pine beetle (Dendroctonus ponderosae), has developed multiple mechanisms to overcome host tree chemical defenses, of which terpenoids are a...

2010-01-01

Henderson, Hannah, Keeling, Christopher I.Wang, Ye, Docking, Roderick T., Breuil, Colette, Li, Maria, Jones, Steven J. M., Liao, Nancy Y., Hesse-Orce, Uljana, DiGuistini, Scott, Robertson, Gordon, Bohlmann, Jörg, Holt, Robert A.

Background Grosmannia clavigera is a bark beetle-vectored fungal pathogen of pines that causes wood discoloration and may kill trees by disrupting nutrient and water transport. Trees respond to attacks from beetles and associated fungi by releasing terpenoid and phenolic defense compounds. It is...

2006-02-02

Keeling, Christopher I., Bohlmann, Jörg

Insects select their hosts, but trees cannot select which herbivores will feed upon them. Thus, as long-lived stationary organisms, conifers must resist the onslaught of varying and multiple attackers over their lifetime. Arguably, the greatest threats to conifers are herbivorous insects and...

2014-01-01

Bohlmann, Jörg, Pitt, Caitlin, Huber, Dezene P. W. , Bonnett, Tiffany R., Keeling, Christopher I., Robert, Jeanne A.

We developed proteome profiles for host colonizing mountain pine beetle adults, Dendroctonus ponderosae Hopkins (Coleoptera: Curculionidae). Adult insects were fed in pairs on fresh host lodgepole pine, Pinus contorta Dougl. ex Loud, phloem tissue. The proteomes of fed individuals were monitored...

2013-01-01

Hall, Dawn E., Arango-Velez, Adriana, Dullat, Harpreet K., Keeling, Christopher I., Breuil, Colette, Liao, Nancy Y., Henderson, Hannah, Bohlmann, Jörg, Cooke, Janice E. K., Quesada, Alfonso L., Jones, Steven J. M., Chan, Simon K., Jancsik, Sharon, Docking, Roderick T., Li, Maria, Yuen, Macaire M. S.

Background The mountain pine beetle (MPB, Dendroctonus ponderosae) epidemic has affected lodgepole pine (Pinus contorta) across an area of more than 18 million hectares of pine forests in western Canada, and is a threat to the boreal jack pine (Pinus banksiana) forest. Defence of pines against...