Genetics of Interior Spruce in British Columbia

Genetics of Interior Spruce in British Columbia PDF Author: Chang-Yi Xie
Publisher:
ISBN:
Category : Engelmann spruce
Languages : en
Pages : 38

Get Book Here

Book Description
Interior spruce (the white spruce/Engelmann spruce complex) is the most commonly planted tree in British Columbia and has the greatest value to the forest economy of the province. The Ministry of Forests initiated an ambitious breeding program for interior spruce in the late 1960s aimed at producing sufficient quantities of genetically improved seeds to meet demand for forest regeneration. The program started with designating three selection units across the complex, based mostly on biogeoclimatic information. In each unit, desirable phenotypes were selected and their genetic merit was tested in open pollinated progeny trials. This report summarizes 20-year test results on the performance & variability of the selected open-pollinated families in the East Kootenay selection unit. Results are presented regarding height growth, survival rates, diameter, stem volume, and variations in parameters among specific sites in the unit.

Genetics of Interior Spruce in British Columbia

Genetics of Interior Spruce in British Columbia PDF Author: Chang-Yi Xie
Publisher:
ISBN:
Category : Engelmann spruce
Languages : en
Pages : 38

Get Book Here

Book Description
Interior spruce (the white spruce/Engelmann spruce complex) is the most commonly planted tree in British Columbia and has the greatest value to the forest economy of the province. The Ministry of Forests initiated an ambitious breeding program for interior spruce in the late 1960s aimed at producing sufficient quantities of genetically improved seeds to meet demand for forest regeneration. The program started with designating three selection units across the complex, based mostly on biogeoclimatic information. In each unit, desirable phenotypes were selected and their genetic merit was tested in open pollinated progeny trials. This report summarizes 20-year test results on the performance & variability of the selected open-pollinated families in the East Kootenay selection unit. Results are presented regarding height growth, survival rates, diameter, stem volume, and variations in parameters among specific sites in the unit.

Evaluating Interior Spruce Genetic Resource Management Practices Through GIS-based Tracking of Seed Deployment Over Time in British Columbia

Evaluating Interior Spruce Genetic Resource Management Practices Through GIS-based Tracking of Seed Deployment Over Time in British Columbia PDF Author:
Publisher:
ISBN:
Category :
Languages : en
Pages :

Get Book Here

Book Description
To improve current understanding of how genetically improved stocks are spatially and temporally deployed, tree breeders, gene resource managers, and forestry research community can gain insights from an analysis of currently available geospatial data. This analysis can also help and provide the raw material for better understanding of the relationship between gene resource management (GRM) and issues related to climate change and other risks such as the current mountain pine beetle epidemic. GIS links the latest information management concepts and methods to assist GRM achieve higher genetic gain, resilience and conservation goals. According to the Chief Forester's standards for seed use and the target of the Forest Genetics Council of BC, 75% of seed use will be from selected seed sources. This research developed a GIS based method to monitor and assess the spatial temporal variability of seed deployment in one seed planning zone of interior spruce and employed map representations to visualize the spatial cluster dynamics of reforestation plantations in BC. The investigation of deployment areas and stem number of seed stock inform our knowledge of forest recovery in the context of gene resources management. Class A and B seed use increased dramatically after 1995 in the Prince George Seed Production Zone (SPZ). The A class ratio in PG total seed deployment is 48.1% from 1995 to 2004 with seed orchard 214 being the leading seed source for Sx reforestation in PG at the SPU level. The Sub-boreal spruce zone is the main natural habitat area of Sx, where intensive forest management activity undergoes as the plantation hotspots. Observed changes in genetic class indicate the intensive reforestation with selected seed sources. The applicability of GIS modeling methods is available at different SPZ levels and species scopes. The system construction of an updated GRM criteria and decision making support is noteworthy for BC foresters to more wisely harvest, recover, and m.

Genetic Structure, Gene Flow and Local Adaptation in the Interior Spruce Hybrid Zone

Genetic Structure, Gene Flow and Local Adaptation in the Interior Spruce Hybrid Zone PDF Author: Amanda Rosa Maria De La Torre Cuba
Publisher:
ISBN:
Category :
Languages : en
Pages :

Get Book Here

Book Description


Genetics of Engelmann Spruce

Genetics of Engelmann Spruce PDF Author: Donald Paige Fowler
Publisher:
ISBN:
Category : Engelmann spruce
Languages : en
Pages : 20

Get Book Here

Book Description


Genetics of White Spruce

Genetics of White Spruce PDF Author: Hans Nienstaedt
Publisher:
ISBN:
Category : White spruce
Languages : en
Pages : 32

Get Book Here

Book Description


Regenerating British Columbia's Forests

Regenerating British Columbia's Forests PDF Author: R. Parish
Publisher: UBC Press
ISBN: 0774844701
Category : Nature
Languages : en
Pages : 386

Get Book Here

Book Description
Regenerating British Columbia's Forests will assist those responsible for planning reforestation projects to reach informed decisions and will challenge them to consider primarily the biological factors basic to reforestation success rather than short-term costs and production technology. Although its main audience is practising foresters and forestry students of British Columbia, the text will be of considerable interest to foresters in other parts of Canada, the United States, and Europe who manage reforestation.

A Survey of the Protected Status of Conifers in British Columbia

A Survey of the Protected Status of Conifers in British Columbia PDF Author: Donald Thomas Lester
Publisher:
ISBN:
Category : Nature
Languages : en
Pages : 44

Get Book Here

Book Description


Genetics of Sitka Spruce

Genetics of Sitka Spruce PDF Author: L. R. Roche
Publisher:
ISBN:
Category : Sitka spruce
Languages : en
Pages : 24

Get Book Here

Book Description


Genetics, Genomics and Breeding of Conifers

Genetics, Genomics and Breeding of Conifers PDF Author: Christophe Plomion
Publisher: CRC Press
ISBN: 1578087198
Category : Science
Languages : en
Pages : 486

Get Book Here

Book Description
With contributions by internationally reputed researchers in the field, this book presents the implications of the genomic revolution for conifers—promoting a better understanding of the evolution of these organisms as well as new knowledge about the molecular basis of quantitative trait variation. Both of these discoveries play important roles in their domestication. Topics include cytogenetics, patterns of nucleotide diversity, genetic mapping, integration of molecular markers in breeding, transcriptomics, advances in proteomics and metabolomics in gymnosperms, and economic importance.

The Spruce Genome

The Spruce Genome PDF Author: Ilga M. Porth
Publisher: Springer Nature
ISBN: 3030210014
Category : Science
Languages : en
Pages : 225

Get Book Here

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.