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Author: Jean Beaulieu Publisher: [Sainte-Foy, Quebec] : Canadian Forest Service ISBN: 9780662296881 Category : Forest genetics Languages : en Pages : 9
Author: Ilga M. Porth Publisher: Springer Nature ISBN: 3030210014 Category : Science Languages : en Pages : 225
Book Description
This book offers comprehensive information on the genomics of spruces (Picea spp.), naturally abundant conifer tree species that are widely distributed in the Northern Hemisphere. Due to their tremendous ecological and economic importance, the management of forest genetic resources has chiefly focused on conservation and tree improvement. A draft genome sequence of the 20-gigabase Norway spruce genome was published in the journal Nature in 2013. Continuous efforts to improve the spruce genome assembly are underway, but are hindered by the inherent characteristics of conifer genomes: high amounts of repetitive sequences (introns and transposable elements) in the genome and large gene family expansions with regards to abiotic stress, secondary metabolism and spruces' defense responses to pathogens and herbivory. This book presents the latest information on the status of genome assemblies, provides detailed insights into transposable elements and methylation patterns, and highlights the extensive genomic resources available for inferring population genomics and climate adaptation, as well as emerging genomics tools for tree improvement programs. In addition, this volume features whole-genome comparisons among conifer species, and demonstrates how functional genomics can be used to improve gene function annotations. The book closes with an outlook on emerging fields of research in spruce genomics.
Author: W. VanBorrendam Publisher: ISBN: Category : Forest germplasm resources conservation Languages : en Pages : 32
Book Description
After many decades of land development & forest exploitation across southern Ontario, only remnant stands and scattered groups of white spruce remain. A primary concern is to avoid such widespread loss or depreciation of the white spruce gene pool. A gene pool conservation program was initiated in 1980 to identify the remaining white spruce in southern Ontario. To accomplish this, a survey was undertaken to locate & catalogue the residual white spruce. This report describes the survey methodology and presents some results regarding the number of white spruce stands by district and the estimated number of trees per stand. Finally, recommendations are made for subsequent activities in white spruce gene pool conservation.
Author: David F. Van Haverbeke Publisher: ISBN: Category : Spruce Languages : en Pages : 12
Book Description
Analyses of 43 blue spruce populations at age 12 (9 years in the field) revealed significant differences among populations for survival, height, vigor, crown diameter, frost injury, and foliage color. Use of regions increases the probability of locating better seeds sources, but high variability among individual populations within regions limits their value in specifying where better seed sources can be collected. Phenotypes should be selected in best stands within regions.