Forest Tree Improvement and Biotechnology Division has carried out researches on the quantitative and qualitative improvement of economic tree species that can be used for timber production and other uses by integrating advanced biotechnology into the conventional methodology. Through these studies, we expect to contribute to the enhancement of the economic values of forest tree resources and adaptation to climate change. In this context, we conduct researches on the genetic test of domestic and exotic tree species, fostering advanced generation breeding populations to increase genetic gain, enhancement of carbon absorption capacity and environmental functionality of forest trees, and so on. Additionally, BT-based technologies such as molecular breeding, genetic engineering, and clonal propagation are also studied to improve the efficiency of tree improvement.
To foster high-grade forest tree resources needed for the establishment of economic forests, we are conducting on the selection of plus trees, the establishment of breeding populations, genetic tests and selection of superior genetic materials for an advanced generation. In order to improve breeding efficiency and shorten the breeding period, accelerated breeding researches using molecular breeding technology such as genomic selection are also conducted.
Plus tree selection
Creation of breeding population
Growth survey using ICT equipment
To enhance the carbon absorption capacity and environmental functionality of forest tree resources for adapting to climate change, we are conducting researches
on biological responses to environments of forest trees, improvement of biomass productivity of tree species, development of new variety by the artificial cross, phytobiome-based enhancement of environmental functionality of tree species, adaptability test for selecting suitable tree species to future climate, development of dissemination technology for practical use, and so on.
Introduction of promising exotic tree species
Adaptability test of exotic tree species
Development of new poplar variety
To utilize the useful traits and functional characteristics of forest tree resources in timber production and development of green biomaterial, we are conducting research on omics such as genomics, transcriptomics and metabolomics, discovering and characterizing useful genes, transformation, genome editing, and so on.
Genome editing process
Isolated testing field for genome-edited tree
For mass-propagation of the selected superior tree via tree improvement research, we are developing various in vitro techniques such as cell and organ culture, somatic embryogenesis, and so on. These asexual propagation techniques can be used not only for mass-production of the high-qualified somatic plants (clone) for the establishment of economic forests but also for the production of tree species that are difficult to propagate with conventional methods.
Initiation of embryogenic tissue
Induction of somatic embryo
Somatic plantlet differentiation
Mass production of somatic plant (clone)