TAILIEUCHUNG - Báo cáo khoa học: "Genetics of oak species and the spectre of global climate change"

Tuyển tập các báo cáo nghiên cứu về lâm nghiệp được đăng trên tạp chí lâm nghiệp quốc tế đề tài: Genetics of oak species and the spectre of global climate change | 456s Ann Sci For 1993 50 Suppl 1 456S-46ŨS Elsevier INRA Final address Genetics of oak species and the spectre of global climate change FT Ledig Institute of Forest Genetics Pacific Southwest Research station USDA Forest Service PO Box 245 Berkeley CA 94701 USA Summary Information on the population genetics of oaks is important in designing conservation strategies. If the threat of global warming materializes as projected it will be necessary to actively intervene to conserve the genetic resources of oaks and other wildland plants. What has been learned about the genetic structure of oak species and gene flow within and among species will guide sampling efforts and the management of in situ reserves. However it will be necessary to provide a backup for natural reserves by propagating oaks ex situ in provenance tests clone banks or tissue culture. climate change population genetics I conservation Resume Génétique des chènes et le spectre du changement climatique. L information relative à la génétique des populations des chênes est un préalable nécessaire à I adoption d une strategic de conservation de ces espèces. Si la menace du rechauffement global se concretise des me-sures concretes devront être prises pour sauvegarder les ressources génétiques des chênes et d autres espèces sauvages. Les connaissances acquises à propos de la structure génétique des chênes et des flux géniques à 1 intérieur et entre espèces seront valorisées dans 1 échantlllonnage et la gestion in situ des reserves. En outre il sera sans doute nécessaire d attribuer des moyens com-plémentaires à cette conservation en multipliant ex situ les chênes en tests de provenances banques de clones OU par la culture in vitro. changement climatique génétique des populations conservation In closing the IUFRO Symposium on the Genetics of Oak Species I would like to draw a connection between what we have learned about the population biology of oaks and the dilemma of conservation in the face of global .

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