Genome Biol Evol 2015 Nov 11;7(12):3269-85. Epub 2015 Nov 11.
Canada Research Chair in Forest and Environmental Genomics, Centre for Forest Research and Institute for Systems and Integrative Biology, Université Laval, Québec City, QC, Canada
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BMC Genomics 2013 Oct 11;14:702. Epub 2013 Oct 11.
Forest Genetics and Biotechnology Group, Department of Biology, Life Sciences Centre, Dalhousie University, 1355 Oxford Street, Halifax, NS B3H 4J1, Canada.
Background: EST (expressed sequence tag) sequences and their annotation provide a highly valuable resource for gene discovery, genome sequence annotation, and other genomics studies that can be applied in genetics, breeding and conservation programs for non-model organisms. Conifers are long-lived plants that are ecologically and economically important globally, and have a large genome size. Black spruce (Picea mariana), is a transcontinental species of the North American boreal and temperate forests. Read More
Am J Bot 2013 Aug 8;100(8):1651-62. Epub 2013 Aug 8.
Centre for Forest Conservation Genetics and Department of Forest and Conservation Sciences, University of British Columbia, Vancouver, British Columbia.
Premise Of The Study: Historic colonization and contemporary evolutionary processes contribute to patterns of genetic variation and differentiation among populations. However, separating the respective influences of these processes remains a challenge, particularly for natural hybrid zones, where standing genetic variation may result from evolutionary processes both preceding and following contact, influencing the evolutionary trajectory of hybrid populations. Where adaptation to novel environments may be facilitated by interspecific hybridization, teasing apart these processes will have practical implications for forest management in changing environments. Read More
Mol Ecol 2012 Sep 16;21(17):4270-86. Epub 2012 Jul 16.
Canada Research Chair in Forest and Environmental Genomics, Centre for Forest Research, Université Laval, Québec, Québec, Canada G1V 0A6.
In response to selective pressure, adaptation may follow different genetic pathways throughout the natural range of a species due to historical differentiation in standing genetic variation. Using 41 populations of black spruce (Picea mariana), the objectives of this study were to identify adaptive genetic polymorphisms related to temperature and precipitation variation across the transcontinental range of the species, and to evaluate the potential influence of historical events on their geographic distribution. Population structure was first inferred using 50 control nuclear markers. Read More
New Phytol 2010 Oct 21;188(2):501-14. Epub 2010 Jul 21.
Department of Forest Sciences, University of British Columbia, Vancouver, BC, Canada.
• Genecological studies in widespread tree species have revealed steep genetic clines along environmental gradients for climate-related traits. In a changing climate, the ecological and economic importance of conifers necessitates an appraisal of how molecular genetic variation shapes quantitative trait variation, and one of the most promising approaches to answer this question is association mapping. • We phenotyped a wide collection of 410 individuals of the widely distributed conifer Sitka spruce rangewide (Picea sitchensis) for budset timing and autumn cold hardiness, and genotyped these individuals for a panel of 768 single nucleotide polymorphisms (SNPs) representing > 200 expressed nuclear genes. Read More