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Tuyển tập các báo cáo nghiên cứu về sinh học được đăng trên tạp chí lâm nghiệp đề tài: Allozyme variation of Pinus pallasiana D. Don in Natural Crimean populations and in plantations in technogenously-polluted areas of the Ukraine steppes. | Ann. For. Sci. 61 2004 389-396 INRA EDP Sciences 2004 DOI 10.1051 forest 2004032 389 Original article Allozyme variation of Pinus pallasiana D. Don in Natural Crimean populations and in plantations in technogenously-polluted areas of the Ukraine steppes Ivan I. KORSHIKOVa Fulvio DUCCIb Natalia S. TERLIGAa Serguey A. BYCHKOVa Elizaveta M. GORLOVAa a Dept. of Plant Tolerance Physiology The Donetsk Botanical Gardens Prospekt Ilyicha 110 Donetsk 83059 Ukraine b Coordinator IUFRO WP 20213 Ist. Sperimentale per la Selvicoltura C.R.A. - Council for Research and Experimentation in Agriculture viale S. Margherita 80 52100 Arezzo Italy Received 16 August 2002 accepted 6 November 2003 Abstract - Allozyme variation parameters have been estimated and compared among four P. pallasiana D. Don plantations located in the Ukraine steppes and in three Crimea natural populations. The analyses also concerned three groups of trees selected for their possible tolerance resistance to steppe conditions and to industrial pollution. The polymorphic loci percentage in the natural populations varied from 0.74 to 0.89 and the allele mean number varied from 2.4 to 2.7. Among the artificial plantations these values varied from 0.75 to 0.85 and from 2.35 to 2.75 respectively. Heterozygote deficiency 14.9 was characteristic of 6 of the 7 stands examined. Instead a heterozygote excess 14.6 to 36.9 but less allele diversity was revealed among groups of selected trees. Nei s genetic distances averaged to 0.010 when comparing natural and artificial populations. Parameters measured on selected groups and on natural populations from the steppes showed an absence of inbreeding depression. The results of this study lead to a recommendation that these trees be used as the basic material in extensive plantation programs of P. pallasiana in the Ukraine steppes including polluted areas. Pinus pallasiana D. Don Ukrainian steppe allozyme variation polluted areas selection Résumé - Variation alloenzymatique chez
